ASTContext.cpp revision c657eba43f0159bd81227fa0812b92a0b03f00d0
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); 1147fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else if (isa<TemplateTypeParmDecl>(Decl)) { 1148fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor assert(false && "Template type parameter types are always available."); 1149fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor } 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 1188a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 11893536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 1190a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCInterfaceType(ObjCInterfaceDecl *Decl) { 11913536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 11923536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 1193f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff Decl->TypeForDecl = new(*this,8) ObjCInterfaceType(Type::ObjCInterface, Decl); 11943536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 11953536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 11963536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 11973536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 1198fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// \brief Retrieve the template type parameter type for a template 1199fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor/// parameter with the given depth, index, and (optionally) name. 1200fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas GregorQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 1201fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor IdentifierInfo *Name) { 1202fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor llvm::FoldingSetNodeID ID; 1203fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmType::Profile(ID, Depth, Index, Name); 1204fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor void *InsertPos = 0; 1205fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmType *TypeParm 1206fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 1207fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1208fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (TypeParm) 1209fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1210fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1211fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor if (Name) 1212fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index, Name, 1213fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor getTemplateTypeParmType(Depth, Index)); 1214fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor else 1215fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TypeParm = new (*this, 8) TemplateTypeParmType(Depth, Index); 1216fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1217fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor Types.push_back(TypeParm); 1218fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 1219fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 1220fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor return QualType(TypeParm, 0); 1221fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor} 1222fab9d67cebb87be968e7ae31a3b549a5279b5d51Douglas Gregor 122355f6b14230c94272efbbcdd89a92224c8db9f225Douglas GregorQualType 122455f6b14230c94272efbbcdd89a92224c8db9f225Douglas GregorASTContext::getClassTemplateSpecializationType(TemplateDecl *Template, 122555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor unsigned NumArgs, 122655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor uintptr_t *Args, bool *ArgIsType, 122755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor QualType Canon) { 122855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor llvm::FoldingSetNodeID ID; 122955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor ClassTemplateSpecializationType::Profile(ID, Template, NumArgs, Args, 123055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor ArgIsType); 123155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor void *InsertPos = 0; 123255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor ClassTemplateSpecializationType *Spec 123355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor = ClassTemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 123455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 123555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (Spec) 123655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 123755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 123855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor void *Mem = Allocate(sizeof(ClassTemplateSpecializationType) + 123955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor (sizeof(uintptr_t) * 124055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor (ClassTemplateSpecializationType:: 124155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor getNumPackedWords(NumArgs) + 124255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor NumArgs)), 8); 124355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Spec = new (Mem) ClassTemplateSpecializationType(Template, NumArgs, Args, 124455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor ArgIsType, Canon); 124555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor Types.push_back(Spec); 124655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor ClassTemplateSpecializationTypes.InsertNode(Spec, InsertPos); 124755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 124855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor return QualType(Spec, 0); 124955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor} 125055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 125188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 125288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 125388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 125488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 12552e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 125688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 125788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 125888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 125988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 126088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 126188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 126288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 126388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 126488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 126588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 126688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 126788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 126888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 126988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 127088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1271065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 1272065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 1273a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 1274a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 127588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 127688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 127788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 12784b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1279b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner ObjCQualifiedInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 12804b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 12814b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 1282a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 1283a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12844b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 12854b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 12864b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 1287a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 1288f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 1289566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek 12904b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1291a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 12924b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 12934b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 12944b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 129588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// getObjCQualifiedIdType - Return an ObjCQualifiedIdType for the 'id' decl 129688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// and the conforming protocol list. 129762f5f7ffad57e0c2af2b308af3735351505937cbChris LattnerQualType ASTContext::getObjCQualifiedIdType(ObjCProtocolDecl **Protocols, 1298c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian unsigned NumProtocols) { 129988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 130088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 130188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1302c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian llvm::FoldingSetNodeID ID; 1303a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType::Profile(ID, Protocols, NumProtocols); 1304c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1305c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian void *InsertPos = 0; 1306a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedIdType *QT = 130762f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdTypes.FindNodeOrInsertPos(ID, InsertPos)) 1308c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QT, 0); 1309c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1310c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // No Match; 1311566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ObjCQualifiedIdType *QType = 1312f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff new (*this,8) ObjCQualifiedIdType(Protocols, NumProtocols); 1313c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Types.push_back(QType); 1314a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.InsertNode(QType, InsertPos); 1315c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QType, 0); 1316c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian} 1317c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 13189752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfExpr - Unlike many "get<Type>" functions, we can't unique 13199752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfExpr AST's (since expression's are never shared). For example, 13209752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 13219752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 13229752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 13238d1a3b8ca1e5fcc4567b5a6f51d82be2e460de1cSteve NaroffQualType ASTContext::getTypeOfExpr(Expr *tofExpr) { 1324f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofExpr->getType()); 1325f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff TypeOfExpr *toe = new (*this,8) TypeOfExpr(tofExpr, Canonical); 13269752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 13279752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 1328d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1329d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 13309752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 13319752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 13329752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 13339752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 13349752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 1335d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 1336f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 1337f83820bd7a0dc4c253071b31c443a316a49ce5aaSteve Naroff TypeOfType *tot = new (*this,8) TypeOfType(tofType, Canonical); 13389752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 13399752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 1340d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1341d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 13425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 13435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 13445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 1345d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 13462ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 13475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 13505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 13515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 13525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 1353b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 13545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 135655f4b02bc71e7347986c6a5249bef635aac1901aArgyrios Kyrtzidis/// getWCharType - Return the unique type for "wchar_t" (C99 7.17), the 1357fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// width of characters in wide strings, The value is target dependent and 1358fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// needs to agree with the definition in <stddef.h>. 135955f4b02bc71e7347986c6a5249bef635aac1901aArgyrios KyrtzidisQualType ASTContext::getWCharType() const { 136064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (LangOpts.CPlusPlus) 136164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 136264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1363b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor // FIXME: In C, shouldn't WCharTy just be a typedef of the target's 1364b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor // wide-character type? 1365b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getWCharType()); 1366fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman} 1367fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman 136864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 136964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 137064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 137164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 137264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 137364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 137464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 137564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 137664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 137764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 137864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 137964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 138064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 138164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 13828b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 13838b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 13848b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 1385b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 13868b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 13878b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 1388e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1389e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 1390e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1391e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 139277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 139377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 139477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 139577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 139677c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 139777c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 139877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 139977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 1400c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1401c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 1402c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 1403c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (TypeQuals == 0) return CanType; 1404c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1405c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 1406c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 1407c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 1408c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 1409c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return CanType.getQualifiedType(TypeQuals); 1410c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1411c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1412c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1413c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 1414c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 1415c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1416c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 1417c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getConstantArrayType(NewEltTy, CAT->getSize(),CAT->getSizeModifier(), 1418c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier()); 1419c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 1420c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 1421c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier()); 1422c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1423898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 1424898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return getDependentSizedArrayType(NewEltTy, DSAT->getSizeExpr(), 1425898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1426898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier()); 1427898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1428c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 1429c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1430c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1431c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier()); 1432c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 1433c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1434c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1435c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 1436c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 1437c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 1438c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 1439c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 1440c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 1441c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1442c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1443c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 1444c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 1445c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1446c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Make sure to look through type qualifiers (like ASQuals) for the negative 1447c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 1448c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 1449c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 1450c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 1451c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1452c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 1453c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 1454c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 1455c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1456c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 1457c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 1458c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // we must propagate them down into the elemeng type. 1459c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1460c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 1461c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 1462c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1463c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Rip through ASQualType's and typedefs to get to a concrete type. 1464c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 1465c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ASQualType *ASQT = dyn_cast<ASQualType>(Ty)) { 1466c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner AddrSpace = ASQT->getAddressSpace(); 1467c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = ASQT->getBaseType(); 1468c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 1469c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 1470c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 1471c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 1472c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 1473c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 1474c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1475c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1476c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1477c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 1478c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 1479c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 1480c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 1481c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1482c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 1483c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 1484c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1485c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1486c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 1487c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 1488c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getASQualType(NewEltTy, AddrSpace); 1489c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 1490c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1491c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 1492c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 1493c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 1494c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 1495c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 1496c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 1497c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 1498c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier())); 1499898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1500898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (const DependentSizedArrayType *DSAT 1501898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 1502898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 1503898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor getDependentSizedArrayType(NewEltTy, 1504898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeExpr(), 1505898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1506898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier())); 1507c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1508c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 1509c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1510c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1511c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier())); 151277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 151377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 151477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 1515e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 1516e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 1517e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 1518e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 1519e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 1520e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 1521e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 1522c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 1523c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 1524c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 1525c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 1526c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 1527c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 1528e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1529c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 1530e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1531e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 1532c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 1533e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 1534e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1535d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel DunbarQualType ASTContext::getBaseElementType(const VariableArrayType *VAT) { 15366183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson QualType ElemTy = VAT->getElementType(); 15376183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 15386183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson if (const VariableArrayType *VAT = getAsVariableArrayType(ElemTy)) 15396183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return getBaseElementType(VAT); 15406183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 15416183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 15426183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 15436183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 15445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 15455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 1546a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 1547ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 15485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 1549a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1550d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel Dunbar assert(T->getAsBuiltinType() && "getFloatingRank(): not a floating type"); 1551ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 1552a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 15535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 15545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 15555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 15565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1559716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 1560716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 1561716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 1562716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 15631361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 15641361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 15651361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 15661361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 15671361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 1568716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 1569f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 1570f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 1571f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 1572f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 1573f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 15741361b11066239ea15764a2a844405352d87296b3Chris Lattner 15751361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 15761361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 15771361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 15781361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 15791361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 15801361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 15815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15847cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 15857cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 15867cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 15877cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 1588a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 1589a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 1590a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 1591a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1592a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 1593fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 1594a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 1595fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 1596fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 15975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1599f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 1600f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 1601f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 1602f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattnerstatic unsigned getIntegerRank(Type *T) { 1603f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 1604f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (isa<EnumType>(T)) 1605f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner return 4; 1606f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 1607f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 16087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 16097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 16107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 16117cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 16127cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 16137cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 16147cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 16157cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 2; 16167cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 16177cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 16187cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 3; 16197cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 16207cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 16217cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 4; 16227cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 16237cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 16247cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 5; 16257cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 16267cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 16277cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 6; 1628f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 1629f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 1630f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 16317cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 16327cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 16337cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 16347cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 1635f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 1636f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 16377cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 16385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1639f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 1640f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 16415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16427cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 16437cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 16445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16457cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 16467cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 16477cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 16487cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 16497cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 16507cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 16517cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 16527cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 16537cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 16547cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 16557cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 16567cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 16577cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 16587cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 16597cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 16607cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 16617cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 16627cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 16637cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 16647cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 16655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 16677cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 16687cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 16697cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 16705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 167171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 167271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 167371993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 167471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 16756c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 167639ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 1677df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 1678f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 167971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 168071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 168171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 1682f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 1683f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 168471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 1685f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 168671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 1687f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 168871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 168944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 169044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 169144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 169244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 169344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 16944afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 1695482b77d1cb4ca08391d1f749436f092a4cc24427Douglas Gregor CFConstantStringTypeDecl->addDecl(Field); 169644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 169744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 169844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 169971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 170071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 170171993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 17028467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 1703b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1704bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders CarlssonQualType ASTContext::getObjCFastEnumerationStateType() 1705bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson{ 1706bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 170744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 170844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 170944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor &Idents.get("__objcFastEnumerationState")); 171044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 1711bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 1712bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 1713bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(ObjCIdType), 1714bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 1715bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 1716bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 1717bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 1718bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 171944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 172044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, 172144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl, 172244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 172344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 17244afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 1725482b77d1cb4ca08391d1f749436f092a4cc24427Douglas Gregor ObjCFastEnumerationStateTypeDecl->addDecl(Field); 172644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 1727bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 172844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 1729bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 1730bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1731bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 1732bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 1733bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1734e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 1735e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 17362d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 1737e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 1738bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 1739bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 174085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 174185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 174285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 174385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1744a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 174533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 1746a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 174798be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 174833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 174933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 175033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 175198be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 175233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 175333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 175498be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 175598be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 175633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 175733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1758a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 175933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 1760c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 1761e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 1762c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 1763ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 1764a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 176533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 17660d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 176733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 176833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 176933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 177033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 177198be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 177233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 177333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 177433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 177533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int NumOfParams = Decl->getNumParams(); 177633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 177733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1778a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek int sz = getObjCEncodingTypeSize (PType); 1779a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 178033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 178133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 178233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 178333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 178433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 178533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 178633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 178733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 178833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 17894306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian ParmVarDecl *PVDecl = Decl->getParamDecl(i); 17904306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian QualType PType = PVDecl->getOriginalType(); 17914306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 17924306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) 17934306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian // Use array's original type only if it has known number of 17944306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian // elements. 17954306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (!dyn_cast<ConstantArrayType>(AT)) 17964306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian PType = PVDecl->getType(); 1797ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 179833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 17994306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 18000d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 180133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 1802a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 180333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 180433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 180533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1806c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 180783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 1808c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 1809c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 181083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// Property attributes are stored as a comma-delimited C string. The simple 181183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// attributes readonly and bycopy are encoded as single characters. The 181283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// parametrized attributes, getter=name, setter=name, and ivar=name, are 181383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// encoded as single characters, followed by an identifier. Property types 181483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// are also encoded as a parametrized attribute. The characters used to encode 181583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 181683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 181783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 181883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 181983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 182083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 182183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 182283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 182383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 182483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 182583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 182683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 182783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 182883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 182983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 183083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 1831c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 1832c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 1833e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 1834c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 1835c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 1836c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 1837c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1838c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 1839c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 1840c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (const ObjCCategoryImplDecl *CID = 1841c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 1842c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 1843c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = CID->propimpl_begin(), e = CID->propimpl_end(); i != e; ++i) { 1844c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 1845c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 1846c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 1847c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 1848c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1849c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 1850c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1851c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1852c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1853c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 185461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 1855c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 1856c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = OID->propimpl_begin(), e = OID->propimpl_end(); i != e; ++i) { 1857c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 1858c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 1859c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 1860c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 1861c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1862c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 1863c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1864c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1865c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1866c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1867c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1868c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1869c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 1870c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 1871c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1872c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 1873090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 1874090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 1875090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian getObjCEncodingForTypeImpl(PD->getType(), S, true, true, NULL, 1876090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 1877090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 1878c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1879c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 1880c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 1881c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1882c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 1883c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 1884c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 1885c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Retain: S += ",&"; break; 1886c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1887c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1888c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1889c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 1890c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 1891c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 1892c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 1893c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1894090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 1895090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 1896090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian 1897c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 1898c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 1899077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 1900c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1901c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1902c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 1903c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 1904077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 1905c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1906c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1907c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 1908c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 1909c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 191039f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 1911c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1912c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1913c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 1914c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 1915c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1916a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 1917a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// Another legacy compatibility encoding: 32-bit longs are encoded as 1918c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian/// 'l' or 'L' , but not always. For typedefs, we need to use 1919a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 1920a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 1921a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 1922a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(PointeeTy.getTypePtr())) { 1923a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (const BuiltinType *BT = PointeeTy->getAsBuiltinType()) { 1924c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::ULong && 1925c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 1926a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 1927c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian else 1928c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian if (BT->getKind() == BuiltinType::Long && 1929c657eba43f0159bd81227fa0812b92a0b03f00d0Fariborz Jahanian ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 1930a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 1931a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 1932a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 1933a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 1934a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 19357d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 193643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FieldDecl *Field) const { 193782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 193882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 193982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 194082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 19415b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian getObjCEncodingForTypeImpl(T, S, true, true, Field, 19425b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 194382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 194482a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 19458b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanianstatic void EncodeBitField(const ASTContext *Context, std::string& S, 19468b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian FieldDecl *FD) { 19478b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 19488b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 19498b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 19508b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian unsigned N = E->getIntegerConstantExprValue(*Ctx).getZExtValue(); 19518b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 19528b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 19538b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 19548b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 195582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 195682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 195782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 19585b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian FieldDecl *FD, 1959090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 1960090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool EncodingProperty) const { 1961e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 196243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD && FD->isBitField()) { 19638b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 196485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 196543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else { 196643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian char encoding; 196743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian switch (BT->getKind()) { 196843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian default: assert(0 && "Unhandled builtin type kind"); 196943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Void: encoding = 'v'; break; 197043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Bool: encoding = 'B'; break; 197143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_U: 197243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UChar: encoding = 'C'; break; 197343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UShort: encoding = 'S'; break; 197443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UInt: encoding = 'I'; break; 197572696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian case BuiltinType::ULong: 197672696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian encoding = 197772696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 197872696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 197943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::ULongLong: encoding = 'Q'; break; 198043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_S: 198143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::SChar: encoding = 'c'; break; 198243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Short: encoding = 's'; break; 198343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Int: encoding = 'i'; break; 198472696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian case BuiltinType::Long: 198572696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian encoding = 198672696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 198772696e17f90d399448d360cb43aebe5eb2007d4fFariborz Jahanian break; 198843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongLong: encoding = 'q'; break; 198943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Float: encoding = 'f'; break; 199043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Double: encoding = 'd'; break; 199143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongDouble: encoding = 'd'; break; 199243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 199385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 199443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += encoding; 199543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 1996c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1997a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (T->isObjCQualifiedIdType()) { 1998090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian getObjCEncodingForTypeImpl(getObjCIdType(), S, 1999090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandPointedToStructures, 2000090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandStructures, FD); 2001090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 2002090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Note that we do extended encoding of protocol qualifer list 2003090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Only when doing ivar or property encoding. 2004090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian const ObjCQualifiedIdType *QIDT = T->getAsObjCQualifiedIdType(); 2005090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 2006090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian for (unsigned i =0; i < QIDT->getNumProtocols(); i++) { 2007090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCProtocolDecl *Proto = QIDT->getProtocols(i); 2008090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 2009090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += Proto->getNameAsString(); 2010090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 2011090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2012090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 2013090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2014090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian return; 2015c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 2016c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian else if (const PointerType *PT = T->getAsPointerType()) { 201785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 2018a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 2019a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 2020a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 2021a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 2022a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Also, do not emit the 'r' for anything but the outermost type! 2023a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(T.getTypePtr())) { 2024a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 2025a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2026a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2027a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2028a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2029a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian else if (OutermostType) { 2030a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 2031a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian while (P->getAsPointerType()) 2032a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian P = P->getAsPointerType()->getPointeeType(); 2033a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 2034a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 2035a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 2036a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2037a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2038a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 2039a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 2040a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 2041a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 2042a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 2043a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 2044a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 2045a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 2046a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 2047a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2048a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 2049c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian if (isObjCIdType(PointeeTy)) { 2050c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian S += '@'; 2051c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian return; 2052c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian } 2053c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian else if (PointeeTy->isObjCInterfaceType()) { 20543e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian if (dyn_cast<TypedefType>(PointeeTy.getTypePtr())) { 20553e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // Another historical/compatibility reason. 20563e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // We encode the underlying type which comes out as 20573e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // {...}; 20583e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian S += '^'; 20593e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 20603e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian false, ExpandPointedToStructures, 20613e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian NULL); 20623e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian return; 20633e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian } 2064c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian S += '@'; 2065090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 2066090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian const ObjCInterfaceType *OIT = PointeeTy->getAsObjCInterfaceType(); 2067090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCInterfaceDecl *OI = OIT->getDecl(); 2068adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2069adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += OI->getNameAsCString(); 2070090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian for (unsigned i =0; i < OIT->getNumProtocols(); i++) { 2071090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCProtocolDecl *Proto = OIT->getProtocol(i); 2072090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 2073090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += Proto->getNameAsString(); 2074090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 2075090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2076adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2077adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian } 2078c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian return; 2079a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCClassType(PointeeTy)) { 20808baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += '#'; 20818baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2082a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCSelType(PointeeTy)) { 20838baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 20848baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2085c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 208685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 208785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 208885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 208985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 2090e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 209185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 209285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 209385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 209485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 209585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 209685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 2097a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 2098a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 2099a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 2100d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar false, ExpandPointedToStructures, 210143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 2102c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else if (const ArrayType *AT = 2103c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Ignore type qualifiers etc. 2104c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 210585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '['; 210685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 210785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 210885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 210985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson else 211085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson assert(0 && "Unhandled array type!"); 211185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 211282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar getObjCEncodingForTypeImpl(AT->getElementType(), S, 211343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian false, ExpandStructures, FD); 211485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += ']'; 2115c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson } else if (T->getAsFunctionType()) { 2116c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 21176de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } else if (const RecordType *RTy = T->getAsRecordType()) { 211882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 2119d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 2120502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 2121502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 2122502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 2123502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 2124502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 2125502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 21260d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 21277d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 212844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (RecordDecl::field_iterator Field = RDecl->field_begin(), 212944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldEnd = RDecl->field_end(); 213044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 213143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 2132d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 213344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 2134d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 2135d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 2136d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar 2137d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 213843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 213943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 214043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 2141d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 2142a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 2143a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 2144a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(qt, S, false, true, 214543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 2146d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 21477d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 21486de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 2149d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 21505e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff } else if (T->isEnumeralType()) { 21518b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 21528b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 21538b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 21548b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 2155485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } else if (T->isBlockPointerType()) { 215621a98b188857d690aa4510c52ac4317ffa0908a8Steve Naroff S += "@?"; // Unlike a pointer-to-function, which is "^?". 215743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } else if (T->isObjCInterfaceType()) { 215843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 215943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian ObjCInterfaceDecl *OI = T->getAsObjCInterfaceType()->getDecl(); 216043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 216143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 216243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 216343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 216443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian std::vector<FieldDecl*> RecFields; 216543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 216643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian for (unsigned int i = 0; i != RecFields.size(); i++) { 216743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 216843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 216943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 217043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 217143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 217243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 217343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 217443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 217543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 217643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 2177f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff assert(0 && "@encode for type not implemented!"); 217885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 217985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2180a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 2181ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 2182ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 2183ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 2184ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 2185ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 2186ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 2187ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 2188ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 2189ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 2190ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 2191ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 2192ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 2193ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 2194ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 2195ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 2196b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlssonvoid ASTContext::setBuiltinVaListType(QualType T) 2197b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson{ 2198b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 2199b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2200b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 2201b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 2202b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2203a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCIdType(TypedefDecl *TD) 22047e219e47de26346885d667131977bd9ca2d7662aSteve Naroff{ 2205a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = getTypedefType(TD); 22067e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 22077e219e47de26346885d667131977bd9ca2d7662aSteve Naroff // typedef struct objc_object *id; 22087e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2209c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2210c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2211c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 22127e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2213c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2214c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2215c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 22167e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = rec; 22177e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 22187e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 2219a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCSelType(TypedefDecl *TD) 2220b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian{ 2221a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCSelType = getTypedefType(TD); 2222b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2223b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 2224b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2225c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2226c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2227b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2228c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2229c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2230b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 2231b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 2232b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2233a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCProtoType(QualType QT) 2234390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian{ 2235a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 2236390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 2237390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 2238a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCClassType(TypedefDecl *TD) 22398baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson{ 2240a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = getTypedefType(TD); 22418baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 22428baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson // typedef struct objc_class *Class; 22438baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 22448baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(ptr && "'Class' incorrectly typed"); 22458baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 22468baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(rec && "'Class' incorrectly typed"); 22478baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = rec; 22488baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 22498baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 2250a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 2251a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 22522198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 22532198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 2254a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 22552198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 22562198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 2257b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 2258d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 2259d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 2260d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 2261b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 2262b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::NoInt: return QualType(); 2263b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 2264b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 2265b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 2266b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 2267b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 2268b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 2269b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 2270b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 2271b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 2272b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 2273b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 2274b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 2275b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 2276b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2277b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2278b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 2279b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2280b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2281fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 2282fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 2283fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 2284fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 2285fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 2286fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 2287fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 2288fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TD->getAttr<ObjCNSObjectAttr>()) 2289fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 2290fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 2291fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return false; 2292fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 2293fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 2294b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// isObjCObjectPointerType - Returns true if type is an Objective-C pointer 2295b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to an object type. This includes "id" and "Class" (two 'special' pointers 2296b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to struct), Interface* (pointer to ObjCInterfaceType) and id<P> (qualified 2297b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// ID type). 2298b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenekbool ASTContext::isObjCObjectPointerType(QualType Ty) const { 2299b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty->isObjCQualifiedIdType()) 2300b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 2301b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 23026ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // Blocks are objects. 23036ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff if (Ty->isBlockPointerType()) 23046ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff return true; 23056ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff 23066ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // All other object types are pointers. 2307b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (!Ty->isPointerType()) 2308b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return false; 2309b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2310b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // Check to see if this is 'id' or 'Class', both of which are typedefs for 2311b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // pointer types. This looks for the typedef specifically, not for the 2312b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // underlying type. 2313b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty == getObjCIdType() || Ty == getObjCClassType()) 2314b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 2315b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2316b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // If this a pointer to an interface (e.g. NSString*), it is ok. 2317fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Ty->getAsPointerType()->getPointeeType()->isObjCInterfaceType()) 2318fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 2319fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 2320fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian // If is has NSObject attribute, OK as well. 2321fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return isObjCNSObjectType(Ty); 2322b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek} 2323b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 23246ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 23256ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 23266ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 2327770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 23281c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff/// typesAreBlockCompatible - This routine is called when comparing two 2329dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// block types. Types must be strictly compatible here. For example, 2330dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// C unfortunately doesn't produce an error for the following: 2331dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2332dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*emptyArgFunc)(); 2333dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*intArgList)(int) = emptyArgFunc; 2334dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2335dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// For blocks, we will produce an error for the following (similar to C++): 2336dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2337dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^emptyArgBlock)(); 2338dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^intArgBlock)(int) = emptyArgBlock; 2339dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2340dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// FIXME: When the dust settles on this integration, fold this into mergeTypes. 2341dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 23421c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroffbool ASTContext::typesAreBlockCompatible(QualType lhs, QualType rhs) { 2343c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *lbase = lhs->getAsFunctionType(); 2344c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *rbase = rhs->getAsFunctionType(); 2345c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionTypeProto *lproto = dyn_cast<FunctionTypeProto>(lbase); 2346c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionTypeProto *rproto = dyn_cast<FunctionTypeProto>(rbase); 2347c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (lproto && rproto) 2348c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return !mergeTypes(lhs, rhs).isNull(); 2349c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return false; 23501c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff} 23511c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff 23526ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 23536ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 23546ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 23556ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 23566ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 23576ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 235861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 23596ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 23606ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman/// canAssignObjCInterfaces - Return true if the two interface types are 23626ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible for assignment from RHS to LHS. This handles validation of any 23636ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// protocol qualifiers on the LHS or RHS. 23646ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// 23653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 23663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 23676ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 23686ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 23696ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 23706ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 23716ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23726ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 23736ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 23746ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(LHS)) 23756ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 23766ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23776ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 23786ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 23796ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(RHS)) 23806ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 23816ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23826ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Finally, we must have two protocol-qualified interfaces. 23836ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *LHSP =cast<ObjCQualifiedInterfaceType>(LHS); 23846ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *RHSP =cast<ObjCQualifiedInterfaceType>(RHS); 23856ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHSP->qual_begin(); 23866ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPE = LHSP->qual_end(); 23876ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHSP->qual_begin(); 23886ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPE = RHSP->qual_end(); 23896ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23906ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // All protocols in LHS must have a presence in RHS. Since the protocol lists 23916ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // are both sorted alphabetically and have no duplicates, we can scan RHS and 23926ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // LHS in a single parallel scan until we run out of elements in LHS. 23936ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHSPI != LHSPE && "Empty LHS protocol list?"); 23946ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *LHSProto = *LHSPI; 23956ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23966ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner while (RHSPI != RHSPE) { 23976ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *RHSProto = *RHSPI++; 23986ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If the RHS has a protocol that the LHS doesn't, ignore it. 23996ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (RHSProto != LHSProto) 24006ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner continue; 24016ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 24026ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Otherwise, the RHS does have this element. 24036ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ++LHSPI; 24046ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (LHSPI == LHSPE) 24056ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // All protocols in LHS exist in RHS. 24066ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 24076ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner LHSProto = *LHSPI; 24086ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner } 24096ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 24106ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If we got here, we didn't find one of the LHS's protocols in the RHS list. 24116ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 24126ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 24136ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 2414ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 2415ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 2416ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 2417ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 24183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 24193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 24203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 24213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24223d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 24233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 24243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 24253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *lproto = dyn_cast<FunctionTypeProto>(lbase); 24263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *rproto = dyn_cast<FunctionTypeProto>(rbase); 24273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 24283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 24293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 24313d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 24323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 243361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 243461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 243561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 243661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 24373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 24393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 24403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 24413d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 24433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 24443d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 24453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 24473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 24483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 24493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24507fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 24517fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 24527fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 24533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 24543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 24553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 24563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 24573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 24583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 24593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 24603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 246161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 246261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 246361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 246461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 24653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 24663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 24673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 24683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 24697fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->isVariadic(), lproto->getTypeQuals()); 24703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 24713d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24723d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 24733d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 24743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *proto = lproto ? lproto : rproto; 24763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 24773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 24783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 24793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 24803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 24813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 24823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 24833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 24843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 24853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 24863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 24873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 24883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 24893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 24903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 24923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 24933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 24947fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis proto->getNumArgs(), lproto->isVariadic(), 24957fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->getTypeQuals()); 24963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 24973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 24993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 25003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionTypeNoProto(retType); 25013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 25023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 25033d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 250443d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 250543d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 250643d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 250743d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // expression is an lvalue. 25083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 25093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 25103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = LHS->getAsReferenceType()) 2511c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 25123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = RHS->getAsReferenceType()) 2513c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 25143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 25153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 25163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 25173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 2518f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 25193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 25203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 25213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 25223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 25233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers() || 25243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman LHSCan.getAddressSpace() != RHSCan.getAddressSpace()) 25253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 25263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 25273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 25283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 2529f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 25301adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 25311adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 25321adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 25331adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 25344c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 25354c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 2536a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 2537a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 2538a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 2539a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 2540a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 2541213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 2542213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 2543213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 2544ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 2545b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // Consider qualified interfaces and interfaces the same. 2546b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (LHSClass == Type::ObjCQualifiedInterface) LHSClass = Type::ObjCInterface; 2547b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (RHSClass == Type::ObjCQualifiedInterface) RHSClass = Type::ObjCInterface; 25483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 25494e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 25504e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 2551bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // ID is compatible with all qualified id types. 2552bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (LHS->isObjCQualifiedIdType()) { 2553bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = RHS->getAsPointerType()) { 2554bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 2555bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (isObjCIdType(pType)) 2556bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 2557bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 2558bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 2559bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 2560bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 2561bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 2562bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 2563bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2564bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2565bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (RHS->isObjCQualifiedIdType()) { 2566bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = LHS->getAsPointerType()) { 2567bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 2568bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (isObjCIdType(pType)) 2569bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 2570bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 2571bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 2572bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 2573bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 2574bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 2575bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 2576bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2577bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 25781adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 25791adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 25803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 25813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 25823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 2583bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 25843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 25853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 25863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 2587bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 25881adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 25893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2590ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 25913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 25924a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 25931adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 25941adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 25953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 25963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 25973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSPointee = LHS->getAsPointerType()->getPointeeType(); 25983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSPointee = RHS->getAsPointerType()->getPointeeType(); 25993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 26003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 260161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 260261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 260361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 260461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 26053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 26063d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 2607c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 2608c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 2609c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 2610c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType LHSPointee = LHS->getAsBlockPointerType()->getPointeeType(); 2611c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType RHSPointee = RHS->getAsBlockPointerType()->getPointeeType(); 2612c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 2613c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 2614c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 2615c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 2616c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 2617c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 2618c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 2619c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 26201adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 26213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 26223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 26233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 26243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 26253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 26263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 26273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 26283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 26293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 26303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 263161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 263261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 263361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 263461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 26353bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 26363bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 26373bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 26383bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 26393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 26403d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 264161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 264261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 264361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 264461710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 26453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 26463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 26473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 26483d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 26493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 26503d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 26513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 26523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 26533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 26543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 26553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 26563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 26573bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 26583bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 265961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return getIncompleteArrayType(ResultType, ArrayType::ArraySizeModifier(),0); 26603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 26611adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 26623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 26633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman case Type::Tagged: 26643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: Why are these compatible? 26653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCIdType(LHS) && isObjCClassType(RHS)) return LHS; 26663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCClassType(LHS) && isObjCIdType(RHS)) return LHS; 26673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 26681adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 26693cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 26703d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 267164cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar case Type::Complex: 267264cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar // Distinct complex types are incompatible. 267364cfdb7da3cb744642fe8a99ad5c851ad3c930b2Daniel Dunbar return QualType(); 26743cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 26753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 26763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 267761710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 26781adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ObjCInterface: 26793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Distinct ObjC interfaces are not compatible; see canAssignObjCInterfaces 26803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // for checking assignment/comparison safety 26813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2682bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff case Type::ObjCQualifiedId: 2683bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Distinct qualified id's are not compatible. 2684bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 26851adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner default: 26861adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner assert(0 && "unexpected type"); 26873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2688ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 2689ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 26907192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 26915426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 2692ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 2693ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 269488054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 2695ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 2696ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 2697ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 2698ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman // At the moment, only bool has padding bits 2699ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 2700ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 2701ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2702ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 2703ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 2704ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 2705ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 2706ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 2707ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 2708ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 2709ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 2710ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 2711ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 2712ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 2713ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 2714ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 2715ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 2716ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 2717ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 2718ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 2719ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 2720ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 2721ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 2722ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 2723ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 2724ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 2725ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2726ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2727ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 27285426bf6456a5aeac416a9150de157904d101c819Chris Lattner// Serialization Support 27295426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 27305426bf6456a5aeac416a9150de157904d101c819Chris Lattner 27317192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek/// Emit - Serialize an ASTContext object to Bitcode. 27327192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenekvoid ASTContext::Emit(llvm::Serializer& S) const { 2733e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek S.Emit(LangOpts); 27345451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(SourceMgr); 27355451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Target); 27365451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Idents); 27375451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Selectors); 27387192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 2739fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // Emit the size of the type vector so that we can reserve that size 2740fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // when we reconstitute the ASTContext object. 2741a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek S.EmitInt(Types.size()); 2742a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 274303ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (std::vector<Type*>::const_iterator I=Types.begin(), E=Types.end(); 274403ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek I!=E;++I) 274503ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek (*I)->Emit(S); 2746a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 2747ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis S.EmitOwnedPtr(TUDecl); 2748ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 2749a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: S.EmitOwnedPtr(CFConstantStringTypeDecl); 27507192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek} 27517192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 27520f84c0059cec39fd1c73ac05bc2864dca664e7f4Ted KremenekASTContext* ASTContext::Create(llvm::Deserializer& D) { 2753e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 2754e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek // Read the language options. 2755e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LangOptions LOpts; 2756e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LOpts.Read(D); 2757e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 2758fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SourceManager &SM = D.ReadRef<SourceManager>(); 2759fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek TargetInfo &t = D.ReadRef<TargetInfo>(); 2760fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek IdentifierTable &idents = D.ReadRef<IdentifierTable>(); 2761fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SelectorTable &sels = D.ReadRef<SelectorTable>(); 27620ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 2763fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek unsigned size_reserve = D.ReadInt(); 2764fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 27652e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor ASTContext* A = new ASTContext(LOpts, SM, t, idents, sels, 27662e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor size_reserve); 2767fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 276803ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (unsigned i = 0; i < size_reserve; ++i) 276903ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek Type::Create(*A,i,D); 27700ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 2771ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis A->TUDecl = cast<TranslationUnitDecl>(D.ReadOwnedPtr<Decl>(*A)); 2772ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 2773a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: A->CFConstantStringTypeDecl = D.ReadOwnedPtr<RecordDecl>(); 2774fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 2775fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek return A; 2776fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek} 2777