ASTContext.cpp revision f30208ad5b334e93582e846a2a0c92f38a607b8a
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- ASTContext.cpp - Context to hold long-lived AST nodes ------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements the ASTContext interface. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/ASTContext.h" 1549aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis#include "clang/AST/DeclCXX.h" 16980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff#include "clang/AST/DeclObjC.h" 17e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/Expr.h" 18e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar#include "clang/AST/RecordLayout.h" 195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/TargetInfo.h" 2085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson#include "llvm/ADT/StringExtras.h" 217192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek#include "llvm/Bitcode/Serialize.h" 227192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek#include "llvm/Bitcode/Deserialize.h" 236fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman#include "llvm/Support/MathExtras.h" 2485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerenum FloatingRank { 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FloatRank, DoubleRank, LongDoubleRank 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3161710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 3261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner TargetInfo &t, 33e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar IdentifierTable &idents, SelectorTable &sels, 34e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar unsigned size_reserve) : 35bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson CFConstantStringTypeDecl(0), ObjCFastEnumerationStateTypeDecl(0), 36bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson SourceMgr(SM), LangOpts(LOpts), Target(t), 372e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor Idents(idents), Selectors(sels) 38e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar{ 39e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar if (size_reserve > 0) Types.reserve(size_reserve); 40e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar InitBuiltinTypes(); 41e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar BuiltinInfo.InitializeBuiltins(idents, Target); 42e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar TUDecl = TranslationUnitDecl::Create(*this); 43e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar} 44e91593ef084479340582b2ba177b44be50a717b7Daniel Dunbar 455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerASTContext::~ASTContext() { 465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Deallocate all the types. 475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (!Types.empty()) { 484b05b1dee6cc65ae61d93dab7edff72710f24589Ted Kremenek Types.back()->Destroy(*this); 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.pop_back(); 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 51b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman 52b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 53b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 54b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); 55b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 56b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 57b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 58b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 59b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 60b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 61b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 62b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const ObjCInterfaceDecl*, const ASTRecordLayout*>::iterator 63b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTObjCInterfaces.begin(), E = ASTObjCInterfaces.end(); 64b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 65b74668edbc119880eb0a7e563432314432cb775dNuno Lopes ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 66b74668edbc119880eb0a7e563432314432cb775dNuno Lopes delete R; 67b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 68b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 69b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 70b74668edbc119880eb0a7e563432314432cb775dNuno Lopes { 71b74668edbc119880eb0a7e563432314432cb775dNuno Lopes llvm::DenseMap<const ObjCInterfaceDecl*, const RecordDecl*>::iterator 72b74668edbc119880eb0a7e563432314432cb775dNuno Lopes I = ASTRecordForInterface.begin(), E = ASTRecordForInterface.end(); 73b74668edbc119880eb0a7e563432314432cb775dNuno Lopes while (I != E) { 74b74668edbc119880eb0a7e563432314432cb775dNuno Lopes RecordDecl *R = const_cast<RecordDecl*>((I++)->second); 75b74668edbc119880eb0a7e563432314432cb775dNuno Lopes R->Destroy(*this); 76b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 77b74668edbc119880eb0a7e563432314432cb775dNuno Lopes } 78b74668edbc119880eb0a7e563432314432cb775dNuno Lopes 79b26153c2b06934b6d39886cae2a379988d9c3e2bEli Friedman TUDecl->Destroy(*this); 805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::PrintStats() const { 835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "*** AST Context Stats:\n"); 845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d types total.\n", (int)Types.size()); 855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumBuiltin = 0, NumPointer = 0, NumArray = 0, NumFunctionP = 0; 86248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar unsigned NumVector = 0, NumComplex = 0, NumBlockPointer = 0; 875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumFunctionNP = 0, NumTypeName = 0, NumTagged = 0, NumReference = 0; 88f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl unsigned NumMemberPointer = 0; 895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumTagStruct = 0, NumTagUnion = 0, NumTagEnum = 0, NumTagClass = 0; 91a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCInterfaces = 0, NumObjCQualifiedInterfaces = 0; 92a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek unsigned NumObjCQualifiedIds = 0; 936cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff unsigned NumTypeOfTypes = 0, NumTypeOfExprs = 0; 945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0, e = Types.size(); i != e; ++i) { 965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Type *T = Types[i]; 975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isa<BuiltinType>(T)) 985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumBuiltin; 995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<PointerType>(T)) 1005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumPointer; 101248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar else if (isa<BlockPointerType>(T)) 102248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar ++NumBlockPointer; 1035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<ReferenceType>(T)) 1045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumReference; 105f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl else if (isa<MemberPointerType>(T)) 106f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl ++NumMemberPointer; 1076d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<ComplexType>(T)) 1086d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumComplex; 1095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<ArrayType>(T)) 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumArray; 1116d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner else if (isa<VectorType>(T)) 1126d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner ++NumVector; 1135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<FunctionTypeNoProto>(T)) 1145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionNP; 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<FunctionTypeProto>(T)) 1165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumFunctionP; 1175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isa<TypedefType>(T)) 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTypeName; 1195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (TagType *TT = dyn_cast<TagType>(T)) { 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++NumTagged; 12139ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis switch (TT->getDecl()->getTagKind()) { 1225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown tagged type!"); 12339ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_struct: ++NumTagStruct; break; 12439ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_union: ++NumTagUnion; break; 12539ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_class: ++NumTagClass; break; 12639ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis case TagDecl::TK_enum: ++NumTagEnum; break; 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 128a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isa<ObjCInterfaceType>(T)) 129a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCInterfaces; 130a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedInterfaceType>(T)) 131a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedInterfaces; 132a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (isa<ObjCQualifiedIdType>(T)) 133a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ++NumObjCQualifiedIds; 1346cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff else if (isa<TypeOfType>(T)) 1356cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff ++NumTypeOfTypes; 1366cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff else if (isa<TypeOfExpr>(T)) 1376cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff ++NumTypeOfExprs; 1383f128ad2691d299b96663da85a9e069c4081ea7cSteve Naroff else { 139beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner QualType(T, 0).dump(); 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(0 && "Unknown type!"); 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d builtin types\n", NumBuiltin); 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d pointer types\n", NumPointer); 146248e1c01d3c9de4b62bdd291e0b99a91552cc487Daniel Dunbar fprintf(stderr, " %d block pointer types\n", NumBlockPointer); 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d reference types\n", NumReference); 148f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl fprintf(stderr, " %d member pointer types\n", NumMemberPointer); 1496d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d complex types\n", NumComplex); 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d array types\n", NumArray); 1516d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner fprintf(stderr, " %d vector types\n", NumVector); 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with proto\n", NumFunctionP); 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d function types with no proto\n", NumFunctionNP); 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d typename (typedef) types\n", NumTypeName); 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d tagged types\n", NumTagged); 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d struct types\n", NumTagStruct); 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d union types\n", NumTagUnion); 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d class types\n", NumTagClass); 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, " %d enum types\n", NumTagEnum); 160a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek fprintf(stderr, " %d interface types\n", NumObjCInterfaces); 161beb663677aa20db59da4e5ab7d535804ec6f963cChris Lattner fprintf(stderr, " %d protocol qualified interface types\n", 162a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedInterfaces); 163c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian fprintf(stderr, " %d protocol qualified id types\n", 164a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek NumObjCQualifiedIds); 1656cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff fprintf(stderr, " %d typeof types\n", NumTypeOfTypes); 1666cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff fprintf(stderr, " %d typeof exprs\n", NumTypeOfExprs); 1676cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer fprintf(stderr, "Total bytes = %d\n", int(NumBuiltin*sizeof(BuiltinType)+ 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumPointer*sizeof(PointerType)+NumArray*sizeof(ArrayType)+ 1706d87fc66ca0e156c4144b692c9e71700b8c18d17Chris Lattner NumComplex*sizeof(ComplexType)+NumVector*sizeof(VectorType)+ 171f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl NumMemberPointer*sizeof(MemberPointerType)+ 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumFunctionP*sizeof(FunctionTypeProto)+ 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer NumFunctionNP*sizeof(FunctionTypeNoProto)+ 1746cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff NumTypeName*sizeof(TypedefType)+NumTagged*sizeof(TagType)+ 1756cc189648ade1d1c838f6bf22ffa0016d56393d3Steve Naroff NumTypeOfTypes*sizeof(TypeOfType)+NumTypeOfExprs*sizeof(TypeOfExpr))); 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 180506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(BuiltinType), 8); 181566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Types.push_back((R = QualType(new (Mem) 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 263b7cfe88e88cb4f46308de89cf3f0c81bfe624128Chris Lattner 264a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// getTypeSize - Return the size of the specified type, in bits. This method 265a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner/// does not work on incomplete types. 266d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattnerstd::pair<uint64_t, unsigned> 2671d75118af76cae2bfc06389cde410e14bd0a19fcDaniel DunbarASTContext::getTypeInfo(const Type *T) { 268f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner T = getCanonicalType(T); 2699e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner uint64_t Width; 270d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner unsigned Align; 271a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (T->getTypeClass()) { 272030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::TypeName: assert(0 && "Not a canonical type!"); 2735d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionNoProto: 2745d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::FunctionProto: 275692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: 276b1c2df99ba67ec6c29ac7dceaa4eb2c8cda4a017Chris Lattner assert(0 && "Incomplete types have no size!"); 277fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::VariableArray: 278fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff assert(0 && "VLAs not implemented yet!"); 279898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor case Type::DependentSizedArray: 280898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor assert(0 && "Dependently-sized arrays don't have a known size"); 281fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff case Type::ConstantArray: { 2821d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 283030d8846c7e520330007087e949f621989876e3aChris Lattner 28498be4943e8dc4f3905629a7102668960873cf863Chris Lattner std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 2859e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*CAT->getSize().getZExtValue(); 286030d8846c7e520330007087e949f621989876e3aChris Lattner Align = EltInfo.second; 287030d8846c7e520330007087e949f621989876e3aChris Lattner break; 2885c09a02a5db85e08a432b6eeced9aa656349710dChristopher Lamb } 289213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman case Type::ExtVector: 290030d8846c7e520330007087e949f621989876e3aChris Lattner case Type::Vector: { 291030d8846c7e520330007087e949f621989876e3aChris Lattner std::pair<uint64_t, unsigned> EltInfo = 29298be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<VectorType>(T)->getElementType()); 2939e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 2944bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman Align = Width; 2956fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // If the alignment is not a power of 2, round up to the next power of 2. 2966fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // This happens for non-power-of-2 length vectors. 2976fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman // FIXME: this should probably be a target property. 2986fe7c8aa8c7546743ecd0ac0138c2cf5d8155386Nate Begeman Align = 1 << llvm::Log2_32_Ceil(Align); 299030d8846c7e520330007087e949f621989876e3aChris Lattner break; 300030d8846c7e520330007087e949f621989876e3aChris Lattner } 3015d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner 3029e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner case Type::Builtin: 303a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 304692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner default: assert(0 && "Unknown builtin type!"); 305d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner case BuiltinType::Void: 306d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner assert(0 && "Incomplete types have no size!"); 3076f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Bool: 3089e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getBoolWidth(); 3099e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getBoolAlign(); 3106f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 311692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_S: 312692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::Char_U: 313692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UChar: 3146f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::SChar: 3159e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getCharWidth(); 3169e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getCharAlign(); 3176f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 31864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis case BuiltinType::WChar: 31964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Width = Target.getWCharWidth(); 32064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis Align = Target.getWCharAlign(); 32164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis break; 322692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UShort: 3236f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Short: 3249e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getShortWidth(); 3259e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getShortAlign(); 3266f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 327692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::UInt: 3286f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Int: 3299e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getIntWidth(); 3309e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getIntAlign(); 3316f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 332692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULong: 3336f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Long: 3349e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongWidth(); 3359e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongAlign(); 3366f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 337692233e90a99c3a81dd04879d36eb9688f137c44Chris Lattner case BuiltinType::ULongLong: 3386f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongLong: 3399e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongLongWidth(); 3409e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongLongAlign(); 3416f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3426f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Float: 3439e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getFloatWidth(); 3449e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getFloatAlign(); 3456f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3466f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::Double: 3475426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getDoubleWidth(); 3485426bf6456a5aeac416a9150de157904d101c819Chris Lattner Align = Target.getDoubleAlign(); 3496f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 3506f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner case BuiltinType::LongDouble: 3519e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = Target.getLongDoubleWidth(); 3529e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Align = Target.getLongDoubleAlign(); 3536f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 354a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 355bfef6d7c67831a135d6ab79931f010f750a730adChris Lattner break; 356ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb case Type::ASQual: 35798be4943e8dc4f3905629a7102668960873cf863Chris Lattner // FIXME: Pointers into different addr spaces could have different sizes and 35898be4943e8dc4f3905629a7102668960873cf863Chris Lattner // alignment requirements: getPointerInfo should take an AddrSpace. 35998be4943e8dc4f3905629a7102668960873cf863Chris Lattner return getTypeInfo(QualType(cast<ASQualType>(T)->getBaseType(), 0)); 360a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek case Type::ObjCQualifiedId: 3615426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(0); 362f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(0); 3636f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner break; 364485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff case Type::BlockPointer: { 365485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 366485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Width = Target.getPointerWidth(AS); 367485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff Align = Target.getPointerAlign(AS); 368485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff break; 369485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } 370f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner case Type::Pointer: { 371f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 3725426bf6456a5aeac416a9150de157904d101c819Chris Lattner Width = Target.getPointerWidth(AS); 373f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner Align = Target.getPointerAlign(AS); 374f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner break; 375f72a44330b9d9a4b2d93e9b91cfb8ab7bd4a0643Chris Lattner } 376a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner case Type::Reference: 3777ab2ed8e881ffdc84e890f5265c41b930df17ceeChris Lattner // "When applied to a reference or a reference type, the result is the size 3785d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // of the referenced type." C++98 5.3.3p2: expr.sizeof. 3796f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // FIXME: This is wrong for struct layout: a reference in a struct has 3806f62c2abd8077bf70d2166d37e8caa426b34d8e4Chris Lattner // pointer size. 381bdcd637c29ec1540f912ea6860c88b910e78c329Chris Lattner return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 382f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl case Type::MemberPointer: { 383f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Note that this is not only platform- but also ABI-dependent. We follow 384f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // the GCC ABI, where pointers to data are one pointer large, pointers to 385f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // functions two pointers. But if we want to support ABI compatibility with 386f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // other compilers too, we need to delegate this completely to TargetInfo. 387f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 388f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl unsigned AS = Pointee.getAddressSpace(); 389f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width = Target.getPointerWidth(AS); 390f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (Pointee->isFunctionType()) 391f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Width *= 2; 392f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Align = Target.getPointerAlign(AS); 393f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // GCC aligns at single pointer width. 394f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 3955d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner case Type::Complex: { 3965d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // Complex types have the same alignment as their elements, but twice the 3975d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner // size. 3985d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner std::pair<uint64_t, unsigned> EltInfo = 39998be4943e8dc4f3905629a7102668960873cf863Chris Lattner getTypeInfo(cast<ComplexType>(T)->getElementType()); 4009e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner Width = EltInfo.first*2; 4015d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner Align = EltInfo.second; 4025d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner break; 4035d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner } 40444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel case Type::ObjCInterface: { 4051d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 40644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 40744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Width = Layout.getSize(); 40844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Align = Layout.getAlignment(); 40944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel break; 41044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 4117176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner case Type::Tagged: { 4121d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const TagType *TT = cast<TagType>(T); 4131d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar 4141d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (TT->getDecl()->isInvalidDecl()) { 4158389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Width = 1; 4168389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner Align = 1; 4178389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner break; 4188389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner } 4198389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner 4201d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar if (const EnumType *ET = dyn_cast<EnumType>(TT)) 4217176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner return getTypeInfo(ET->getDecl()->getIntegerType()); 4227176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner 4231d75118af76cae2bfc06389cde410e14bd0a19fcDaniel Dunbar const RecordType *RT = cast<RecordType>(TT); 4247176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 4257176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Width = Layout.getSize(); 4267176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner Align = Layout.getAlignment(); 427dc0d73e6495404418acf8548875aeaff07791a74Chris Lattner break; 428a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner } 4297176331b0f5cfaaa2b5aa487a6660e859e371119Chris Lattner } 430d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 431464175bba1318bef7905122e9fda20cff926df78Chris Lattner assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 4329e9b6dc3fd413f5341fab54b681420eeb21cd169Chris Lattner return std::make_pair(Width, Align); 433a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner} 434a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 4358b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel/// LayoutField - Field layout. 4368b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patelvoid ASTRecordLayout::LayoutField(const FieldDecl *FD, unsigned FieldNo, 4373b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar bool IsUnion, unsigned StructPacking, 4388b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel ASTContext &Context) { 4393b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned FieldPacking = StructPacking; 4408b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldOffset = IsUnion ? 0 : Size; 4418b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t FieldSize; 4428b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel unsigned FieldAlign; 4433b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 4443b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: Should this override struct packing? Probably we want to 4453b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // take the minimum? 4463b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = FD->getAttr<PackedAttr>()) 4473b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldPacking = PA->getAlignment(); 4488b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4498b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const Expr *BitWidthExpr = FD->getBitWidth()) { 4508b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // TODO: Need to check this algorithm on other targets! 4518b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // (tested on Linux-X86) 45232442bbc98bafa512fa42d46fedf60ed7d79f574Daniel Dunbar FieldSize = 45332442bbc98bafa512fa42d46fedf60ed7d79f574Daniel Dunbar BitWidthExpr->getIntegerConstantExprValue(Context).getZExtValue(); 4548b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4558b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 4568b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 4578b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel uint64_t TypeSize = FieldInfo.first; 4588b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4593b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 4603b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 4613b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. 4623b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 4633b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 4648b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 4653b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 4663b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, FieldPacking); 4678b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 4688b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 4698b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4708b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Check if we need to add padding to give the field the correct 4718b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // alignment. 4728b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (FieldSize == 0 || (FieldOffset & (FieldAlign-1)) + FieldSize > TypeSize) 4738b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 4748b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4758b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Padding members don't affect overall alignment 4768b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (!FD->getIdentifier()) 4778b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = 1; 4788b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 4798389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner if (FD->getType()->isIncompleteArrayType()) { 4808389eab190afef3462f6418b8d8fb70fb01c4005Chris Lattner // This is a flexible array member; we can't directly 4818b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // query getTypeInfo about these, so we figure it out here. 4828b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Flexible array members don't have any size, but they 4838b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // have to be aligned appropriately for their element type. 4848b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = 0; 485c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType* ATy = Context.getAsArrayType(FD->getType()); 4868b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = Context.getTypeAlign(ATy->getElementType()); 4878b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 4888b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel std::pair<uint64_t, unsigned> FieldInfo = 4898b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Context.getTypeInfo(FD->getType()); 4908b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldSize = FieldInfo.first; 4918b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = FieldInfo.second; 4928b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 4938b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 4943b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // Determine the alignment of this bitfield. The packing 4953b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // attributes define a maximum and the alignment attribute defines 4963b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a minimum. Additionally, the packing alignment must be at least 4973b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // a byte for non-bitfields. 4983b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // 4993b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // FIXME: What is the right behavior when the specified alignment 5003b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar // is smaller than the specified packing? 5013b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (FieldPacking) 5023b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar FieldAlign = std::min(FieldAlign, std::max(8U, FieldPacking)); 5038b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (const AlignedAttr *AA = FD->getAttr<AlignedAttr>()) 5048b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldAlign = std::max(FieldAlign, AA->getAlignment()); 5058b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5068b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Round up the current record size to the field's alignment boundary. 5078b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffset = (FieldOffset + (FieldAlign-1)) & ~(FieldAlign-1); 5088b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 5098b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5108b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Place this field at the current location. 5118b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel FieldOffsets[FieldNo] = FieldOffset; 5128b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5138b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Reserve space for this field. 5148b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel if (IsUnion) { 5158b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = std::max(Size, FieldSize); 5168b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } else { 5178b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Size = FieldOffset + FieldSize; 5188b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel } 5198b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 5208b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel // Remember max struct/class alignment. 5218b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel Alignment = std::max(Alignment, FieldAlign); 5228b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel} 5238b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel 524a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanianstatic void CollectObjCIvars(const ObjCInterfaceDecl *OI, 525a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian std::vector<FieldDecl*> &Fields) { 526a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian const ObjCInterfaceDecl *SuperClass = OI->getSuperClass(); 527a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (SuperClass) 528a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian CollectObjCIvars(SuperClass, Fields); 529a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 530a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian E = OI->ivar_end(); I != E; ++I) { 531a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian ObjCIvarDecl *IVDecl = (*I); 532a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (!IVDecl->isInvalidDecl()) 533a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian Fields.push_back(cast<FieldDecl>(IVDecl)); 534a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 535a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 536a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian 537a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian/// addRecordToClass - produces record info. for the class for its 538a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian/// ivars and all those inherited. 539a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian/// 540a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanianconst RecordDecl *ASTContext::addRecordToClass(const ObjCInterfaceDecl *D) 541a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian{ 542a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian const RecordDecl *&RD = ASTRecordForInterface[D]; 543a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian if (RD) 544a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian return RD; 545a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian std::vector<FieldDecl*> RecFields; 546a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian CollectObjCIvars(D, RecFields); 547a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RecordDecl *NewRD = RecordDecl::Create(*this, TagDecl::TK_struct, 0, 548a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian D->getLocation(), 549a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian D->getIdentifier()); 550a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian /// FIXME! Can do collection of ivars and adding to the record while 551a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian /// doing it. 552a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian for (unsigned int i = 0; i != RecFields.size(); i++) { 553a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian FieldDecl *Field = FieldDecl::Create(*this, NewRD, 554a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RecFields[i]->getLocation(), 555a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RecFields[i]->getIdentifier(), 556a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RecFields[i]->getType(), 5574afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor RecFields[i]->getBitWidth(), false); 558482b77d1cb4ca08391d1f749436f092a4cc24427Douglas Gregor NewRD->addDecl(Field); 559a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian } 560a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian NewRD->completeDefinition(*this); 561a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian RD = NewRD; 562a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian return RD; 563a769c004a2874504c17ea8afccbc4ad35fc33c9fFariborz Jahanian} 56444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 565efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian/// setFieldDecl - maps a field for the given Ivar reference node. 566efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian// 567efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanianvoid ASTContext::setFieldDecl(const ObjCInterfaceDecl *OI, 568efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian const ObjCIvarDecl *Ivar, 569efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian const ObjCIvarRefExpr *MRef) { 570efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian FieldDecl *FD = (const_cast<ObjCInterfaceDecl *>(OI))-> 571efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian lookupFieldDeclForIvar(*this, Ivar); 572efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian ASTFieldForIvarRef[MRef] = FD; 573efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian} 574efc4c4bdbd8fee90b93deb3b5cfaeb044ae22557Fariborz Jahanian 57561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner/// getASTObjcInterfaceLayout - Get or compute information about the layout of 57661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner/// the specified Objective C, which indicates its size and ivar 57744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel/// position information. 57844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patelconst ASTRecordLayout & 57944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang PatelASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 58044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Look up this layout, if already laid out, return what we have. 58144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ASTRecordLayout *&Entry = ASTObjCInterfaces[D]; 58244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (Entry) return *Entry; 58344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 58444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 58544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 5866a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel ASTRecordLayout *NewEntry = NULL; 5876a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned FieldCount = D->ivar_size(); 5886a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel if (ObjCInterfaceDecl *SD = D->getSuperClass()) { 5896a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel FieldCount++; 5906a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel const ASTRecordLayout &SL = getASTObjCInterfaceLayout(SD); 5916a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel unsigned Alignment = SL.getAlignment(); 5926a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel uint64_t Size = SL.getSize(); 5936a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(Size, Alignment); 5946a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 59561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner // Super class is at the beginning of the layout. 59661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner NewEntry->SetFieldOffset(0, 0); 5976a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } else { 5986a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry = new ASTRecordLayout(); 5996a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel NewEntry->InitializeLayout(FieldCount); 6006a5a34c0e5587263df719c62030761cf59d27fe4Devang Patel } 60144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel Entry = NewEntry; 60244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 6033b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 6043b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 6053b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 60644a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 60744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 60844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 60944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel AA->getAlignment())); 61044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 61144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Layout each ivar sequentially. 61244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel unsigned i = 0; 61344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel for (ObjCInterfaceDecl::ivar_iterator IVI = D->ivar_begin(), 61444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel IVE = D->ivar_end(); IVI != IVE; ++IVI) { 61544a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel const ObjCIvarDecl* Ivar = (*IVI); 6163b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar NewEntry->LayoutField(Ivar, i++, false, StructPacking, *this); 61744a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel } 61844a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 61944a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // Finally, round the size of the total struct up to the alignment of the 62044a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel // struct itself. 62144a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel NewEntry->FinalizeLayout(); 62244a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel return *NewEntry; 62344a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel} 62444a3dded8080c5c9cfdad208ade8f8f7850d9a4fDevang Patel 62588a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel/// getASTRecordLayout - Get or compute information about the layout of the 626464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// specified record (struct/union/class), which indicates its size and field 627464175bba1318bef7905122e9fda20cff926df78Chris Lattner/// position information. 62898be4943e8dc4f3905629a7102668960873cf863Chris Lattnerconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 6294b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek D = D->getDefinition(*this); 6304b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek assert(D && "Cannot get layout of forward declarations!"); 6314bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 632464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Look up this layout, if already laid out, return what we have. 63388a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const ASTRecordLayout *&Entry = ASTRecordLayouts[D]; 634464175bba1318bef7905122e9fda20cff926df78Chris Lattner if (Entry) return *Entry; 6354bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 63688a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // Allocate and assign into ASTRecordLayouts here. The "Entry" reference can 63788a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel // be invalidated (dangle) if the ASTRecordLayouts hashtable is inserted into. 63888a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel ASTRecordLayout *NewEntry = new ASTRecordLayout(); 639464175bba1318bef7905122e9fda20cff926df78Chris Lattner Entry = NewEntry; 6404bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 641e267ff35b2f4e9d2b0d8bf24109d41cc7398b61bDouglas Gregor // FIXME: Avoid linear walk through the fields, if possible. 64244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor NewEntry->InitializeLayout(std::distance(D->field_begin(), D->field_end())); 64339ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis bool IsUnion = D->isUnion(); 644464175bba1318bef7905122e9fda20cff926df78Chris Lattner 6453b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar unsigned StructPacking = 0; 6463b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar if (const PackedAttr *PA = D->getAttr<PackedAttr>()) 6473b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar StructPacking = PA->getAlignment(); 6483b0db908ebd07eaa26bc90deba5e826de00fe515Daniel Dunbar 6494bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman if (const AlignedAttr *AA = D->getAttr<AlignedAttr>()) 6508b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->SetAlignment(std::max(NewEntry->getAlignment(), 6518b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel AA->getAlignment())); 6524bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 6534bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Layout each field, for now, just sequentially, respecting alignment. In 6544bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // the future, this will need to be tweakable by targets. 65544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor unsigned FieldIdx = 0; 656f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor for (RecordDecl::field_iterator Field = D->field_begin(), 657f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor FieldEnd = D->field_end(); 65844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; (void)++Field, ++FieldIdx) 65944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor NewEntry->LayoutField(*Field, FieldIdx, IsUnion, StructPacking, *this); 6604bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman 6614bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // Finally, round the size of the total struct up to the alignment of the 6624bd998bbc228915d2b9cae5b67879de48940d05eEli Friedman // struct itself. 6638b27704d61be128bbff6352e6ef417efc0d6bf4fDevang Patel NewEntry->FinalizeLayout(); 6645d2a6303467184b1f159bb6556efc434e50e3c28Chris Lattner return *NewEntry; 665464175bba1318bef7905122e9fda20cff926df78Chris Lattner} 666464175bba1318bef7905122e9fda20cff926df78Chris Lattner 667a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 668a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner// Type creation/memoization methods 669a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner//===----------------------------------------------------------------------===// 670a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 671ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher LambQualType ASTContext::getASQualType(QualType T, unsigned AddressSpace) { 672f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType CanT = getCanonicalType(T); 673f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (CanT.getAddressSpace() == AddressSpace) 674f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return T; 675f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 676f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Type's cannot have multiple ASQuals, therefore we know we only have to deal 677f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // with CVR qualifiers from here on out. 678f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(CanT.getAddressSpace() == 0 && 679f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner "Type is already address space qualified"); 680f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner 681f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // Check if we've already instantiated an address space qual'd type of this 682f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner // type. 683ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSetNodeID ID; 684f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner ASQualType::Profile(ID, T.getTypePtr(), AddressSpace); 685ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb void *InsertPos = 0; 686ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (ASQualType *ASQy = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos)) 687ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb return QualType(ASQy, 0); 688ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 689ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // If the base type isn't canonical, this won't be a canonical type either, 690ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // so fill in the canonical type field. 691ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType Canonical; 692ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (!T->isCanonical()) { 693f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getASQualType(CanT, AddressSpace); 694ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 695ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb // Get the new insert position for the node we care about. 696ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualType *NewIP = ASQualTypes.FindNodeOrInsertPos(ID, InsertPos); 697f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 698ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb } 699506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(ASQualType), 8); 700566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ASQualType *New = new (Mem) ASQualType(T.getTypePtr(), Canonical, AddressSpace); 701ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb ASQualTypes.InsertNode(New, InsertPos); 702ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb Types.push_back(New); 703f46699ce225811d8d9dbab9d00189a0e54469457Chris Lattner return QualType(New, T.getCVRQualifiers()); 704ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb} 705ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 706a7674d8a9a69f3f6fe16e70cf2a3b2b15fb7c43dChris Lattner 7075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getComplexType - Return the uniqued reference to the type for a complex 7085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// number with the specified element type. 7095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getComplexType(QualType T) { 7105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 7115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 7125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 7135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType::Profile(ID, T); 7145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 7165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 7175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(CT, 0); 7185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 7205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 7215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 7225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 723f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getComplexType(getCanonicalType(T)); 7245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 727f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 7285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 729506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(ComplexType), 8); 730566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ComplexType *New = new (Mem) ComplexType(T, Canonical); 7315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 7325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ComplexTypes.InsertNode(New, InsertPos); 7335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 7345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getPointerType - Return the uniqued reference to the type for a pointer to 7385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// the specified type. 7395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getPointerType(QualType T) { 7405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 7415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 7425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 7435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType::Profile(ID, T); 7445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 7465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 7475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(PT, 0); 7485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the pointee type isn't canonical, this won't be a canonical type either, 7505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 7515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 7525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 753f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getPointerType(getCanonicalType(T)); 7545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 7565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 757f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 7585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 759506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(PointerType), 8); 760566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek PointerType *New = new (Mem) PointerType(T, Canonical); 7615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 7625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PointerTypes.InsertNode(New, InsertPos); 7635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 7645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7665618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// getBlockPointerType - Return the uniqued reference to the type for 7675618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff/// a pointer to the specified block. 7685618bd4a52c45fbbb605e3ba885663b2164db8a3Steve NaroffQualType ASTContext::getBlockPointerType(QualType T) { 769296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff assert(T->isFunctionType() && "block of function types only"); 770296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // Unique pointers, to guarantee there is only one block of a particular 7715618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // structure. 7725618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff llvm::FoldingSetNodeID ID; 7735618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType::Profile(ID, T); 7745618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 7755618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff void *InsertPos = 0; 7765618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (BlockPointerType *PT = 7775618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 7785618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(PT, 0); 7795618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 780296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // If the block pointee type isn't canonical, this won't be a canonical 7815618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // type either so fill in the canonical type field. 7825618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff QualType Canonical; 7835618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff if (!T->isCanonical()) { 7845618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Canonical = getBlockPointerType(getCanonicalType(T)); 7855618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 7865618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff // Get the new insert position for the node we care about. 7875618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerType *NewIP = 7885618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 789f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 7905618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff } 791506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(BlockPointerType), 8); 792566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek BlockPointerType *New = new (Mem) BlockPointerType(T, Canonical); 7935618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff Types.push_back(New); 7945618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff BlockPointerTypes.InsertNode(New, InsertPos); 7955618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff return QualType(New, 0); 7965618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff} 7975618bd4a52c45fbbb605e3ba885663b2164db8a3Steve Naroff 7985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getReferenceType - Return the uniqued reference to the type for a reference 7995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// to the specified type. 8005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getReferenceType(QualType T) { 8015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique pointers, to guarantee there is only one pointer of a particular 8025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 8035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 8045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType::Profile(ID, T); 8055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 8075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ReferenceType *RT = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 8085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(RT, 0); 8095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the referencee type isn't canonical, this won't be a canonical type 8115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // either, so fill in the canonical type field. 8125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 8135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!T->isCanonical()) { 814f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getReferenceType(getCanonicalType(T)); 8155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 8175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceType *NewIP = ReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 818f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 8195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 821506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(ReferenceType), 8); 822566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ReferenceType *New = new (Mem) ReferenceType(T, Canonical); 8235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 8245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ReferenceTypes.InsertNode(New, InsertPos); 8255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 8265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 828f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// getMemberPointerType - Return the uniqued reference to the type for a 829f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl/// member pointer to the specified type, in the specified class. 830f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian RedlQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) 831f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl{ 832f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Unique pointers, to guarantee there is only one pointer of a particular 833f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // structure. 834f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl llvm::FoldingSetNodeID ID; 835f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType::Profile(ID, T, Cls); 836f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 837f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *InsertPos = 0; 838f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (MemberPointerType *PT = 839f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 840f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(PT, 0); 841f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 842f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // If the pointee or class type isn't canonical, this won't be a canonical 843f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // type either, so fill in the canonical type field. 844f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl QualType Canonical; 845f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl if (!T->isCanonical()) { 846f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 847f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 848f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl // Get the new insert position for the node we care about. 849f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *NewIP = 850f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 851f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 852f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl } 853f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl void *Mem = Allocator.Allocate(sizeof(MemberPointerType), 8); 854f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerType *New = new (Mem) MemberPointerType(T, Cls, Canonical); 855f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl Types.push_back(New); 856f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl MemberPointerTypes.InsertNode(New, InsertPos); 857f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl return QualType(New, 0); 858f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl} 859f30208ad5b334e93582e846a2a0c92f38a607b8aSebastian Redl 860fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// getConstantArrayType - Return the unique reference to the type for an 861fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff/// array of the specified element type. 862fb22d96692c5240fb8d611290dbf7eeed3759c73Steve NaroffQualType ASTContext::getConstantArrayType(QualType EltTy, 863c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff const llvm::APInt &ArySize, 864c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 865c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 8665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 867fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff ConstantArrayType::Profile(ID, EltTy, ArySize); 8685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 8707192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek if (ConstantArrayType *ATP = 8717192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 8725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(ATP, 0); 8735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 8755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 8765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 8775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!EltTy->isCanonical()) { 878f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 879c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ASM, EltTypeQuals); 8805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 8817192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayType *NewIP = 8827192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 883f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 8845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 886506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(ConstantArrayType), 8); 887566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ConstantArrayType *New = 888566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek new (Mem) ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 8897192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek ConstantArrayTypes.InsertNode(New, InsertPos); 8905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 8915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 8925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 894bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// getVariableArrayType - Returns a non-unique reference to the type for a 895bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff/// variable array of the specified element type. 896c9406125e2cac9208098655ac8058c095c2c3a65Steve NaroffQualType ASTContext::getVariableArrayType(QualType EltTy, Expr *NumElts, 897c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 898c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals) { 899c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Since we don't unique expressions, it isn't possible to unique VLA's 900c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // that have an expression provided for their size. 901c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 902506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(VariableArrayType), 8); 903566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek VariableArrayType *New = 904566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek new (Mem) VariableArrayType(EltTy, QualType(), NumElts, ASM, EltTypeQuals); 905c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 906c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman VariableArrayTypes.push_back(New); 907c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 908c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 909c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman} 910c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 911898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// getDependentSizedArrayType - Returns a non-unique reference to 912898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// the type for a dependently-sized array of the specified element 913898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// type. FIXME: We will need these to be uniqued, or at least 914898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor/// comparable, at some point. 915898574e7496ba8fd76290079d3a9d06954992734Douglas GregorQualType ASTContext::getDependentSizedArrayType(QualType EltTy, Expr *NumElts, 916898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ArrayType::ArraySizeModifier ASM, 917898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor unsigned EltTypeQuals) { 918898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 919898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor "Size must be type- or value-dependent!"); 920898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 921898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Since we don't unique expressions, it isn't possible to unique 922898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependently-sized array types. 923898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 924506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(DependentSizedArrayType), 8); 925566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek DependentSizedArrayType *New = 926566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek new (Mem) DependentSizedArrayType(EltTy, QualType(), NumElts, 927566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ASM, EltTypeQuals); 928898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 929898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DependentSizedArrayTypes.push_back(New); 930898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Types.push_back(New); 931898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return QualType(New, 0); 932898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor} 933898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 934c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli FriedmanQualType ASTContext::getIncompleteArrayType(QualType EltTy, 935c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman ArrayType::ArraySizeModifier ASM, 936c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman unsigned EltTypeQuals) { 937c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman llvm::FoldingSetNodeID ID; 938c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType::Profile(ID, EltTy); 939c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 940c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman void *InsertPos = 0; 941c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (IncompleteArrayType *ATP = 942c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 943c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(ATP, 0); 944c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 945c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // If the element type isn't canonical, this won't be a canonical type 946c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // either, so fill in the canonical type field. 947c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman QualType Canonical; 948c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 949c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman if (!EltTy->isCanonical()) { 950f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 9512bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek ASM, EltTypeQuals); 952c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 953c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman // Get the new insert position for the node we care about. 954c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayType *NewIP = 955c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 956f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9572bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek } 958c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 959506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(IncompleteArrayType), 8); 960566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek IncompleteArrayType *New = new (Mem) IncompleteArrayType(EltTy, Canonical, 961566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ASM, EltTypeQuals); 962c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman 963c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman IncompleteArrayTypes.InsertNode(New, InsertPos); 964c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman Types.push_back(New); 965c5773c4b8ce1ed6ed5c7112c9020c954a47dce96Eli Friedman return QualType(New, 0); 966fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff} 967fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 96873322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// getVectorType - Return the unique reference to a vector type of 96973322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 97073322924127c873c13101b705dd823f5539ffa5fSteve NaroffQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 9715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinType *baseType; 9725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 973f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 97473322924127c873c13101b705dd823f5539ffa5fSteve Naroff assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 9755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Check if we've already instantiated a vector of this type. 9775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 97873322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType::Profile(ID, vecType, NumElts, Type::Vector); 9795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 9805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 9815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(VTP, 0); 9825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If the element type isn't canonical, this won't be a canonical type either, 9845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // so fill in the canonical type field. 9855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 9865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!vecType->isCanonical()) { 987f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getVectorType(getCanonicalType(vecType), NumElts); 9885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 9905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 991f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 9925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 993506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(VectorType), 8); 994566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek VectorType *New = new (Mem) VectorType(vecType, NumElts, Canonical); 9955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer VectorTypes.InsertNode(New, InsertPos); 9965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 9975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 9985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1000213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman/// getExtVectorType - Return the unique reference to an extended vector type of 100173322924127c873c13101b705dd823f5539ffa5fSteve Naroff/// the specified element type and size. VectorType must be a built-in type. 1002213541a68a3e137d11d2cefb612c6cdb410d7e8eNate BegemanQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 100373322924127c873c13101b705dd823f5539ffa5fSteve Naroff BuiltinType *baseType; 100473322924127c873c13101b705dd823f5539ffa5fSteve Naroff 1005f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1006213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 100773322924127c873c13101b705dd823f5539ffa5fSteve Naroff 100873322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Check if we've already instantiated a vector of this type. 100973322924127c873c13101b705dd823f5539ffa5fSteve Naroff llvm::FoldingSetNodeID ID; 1010213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 101173322924127c873c13101b705dd823f5539ffa5fSteve Naroff void *InsertPos = 0; 101273322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 101373322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(VTP, 0); 101473322924127c873c13101b705dd823f5539ffa5fSteve Naroff 101573322924127c873c13101b705dd823f5539ffa5fSteve Naroff // If the element type isn't canonical, this won't be a canonical type either, 101673322924127c873c13101b705dd823f5539ffa5fSteve Naroff // so fill in the canonical type field. 101773322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType Canonical; 101873322924127c873c13101b705dd823f5539ffa5fSteve Naroff if (!vecType->isCanonical()) { 1019213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 102073322924127c873c13101b705dd823f5539ffa5fSteve Naroff 102173322924127c873c13101b705dd823f5539ffa5fSteve Naroff // Get the new insert position for the node we care about. 102273322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1023f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 102473322924127c873c13101b705dd823f5539ffa5fSteve Naroff } 1025506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(ExtVectorType), 8); 1026566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ExtVectorType *New = new (Mem) ExtVectorType(vecType, NumElts, Canonical); 102773322924127c873c13101b705dd823f5539ffa5fSteve Naroff VectorTypes.InsertNode(New, InsertPos); 102873322924127c873c13101b705dd823f5539ffa5fSteve Naroff Types.push_back(New); 102973322924127c873c13101b705dd823f5539ffa5fSteve Naroff return QualType(New, 0); 103073322924127c873c13101b705dd823f5539ffa5fSteve Naroff} 103173322924127c873c13101b705dd823f5539ffa5fSteve Naroff 10325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionTypeNoProto - Return a K&R style C function type like 'int()'. 10335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getFunctionTypeNoProto(QualType ResultTy) { 10355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 10365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 10375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 10385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto::Profile(ID, ResultTy); 10395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 10415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeNoProto *FT = 10425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos)) 10435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FT, 0); 10445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 10465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ResultTy->isCanonical()) { 1047f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionTypeNoProto(getCanonicalType(ResultTy)); 10485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 10505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProto *NewIP = 10515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeNoProtos.FindNodeOrInsertPos(ID, InsertPos); 1052f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 10535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1055b17e3b04fa50ca542ccbbf69847f62e5f043df03Douglas Gregor void *Mem = Allocator.Allocate(sizeof(FunctionTypeNoProto), 8); 1056b17e3b04fa50ca542ccbbf69847f62e5f043df03Douglas Gregor FunctionTypeNoProto *New = new (Mem) FunctionTypeNoProto(ResultTy, Canonical); 10575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(New); 105856cd7e3848c2d59ca2ec3b72d0834192edf0bcdfEli Friedman FunctionTypeNoProtos.InsertNode(New, InsertPos); 10595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(New, 0); 10605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFunctionType - Return a normal function type with a typed argument 10635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// list. isVariadic indicates whether the argument list includes '...'. 106461710854be2b098428aff5316e64bd34b30fbcb7Chris LattnerQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 1065971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned NumArgs, bool isVariadic, 1066971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis unsigned TypeQuals) { 10675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Unique functions, to guarantee there is only one function of a particular 10685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // structure. 10695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSetNodeID ID; 1070971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis FunctionTypeProto::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1071971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis TypeQuals); 10725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void *InsertPos = 0; 10745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FunctionTypeProto *FTP = 10755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos)) 10765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 10775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Determine whether the type being created is already canonical or not. 10795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCanonical = ResultTy->isCanonical(); 10805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 10815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!ArgArray[i]->isCanonical()) 10825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isCanonical = false; 10835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this type isn't canonical, get the canonical version of it. 10855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType Canonical; 10865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isCanonical) { 10875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::SmallVector<QualType, 16> CanonicalArgs; 10885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CanonicalArgs.reserve(NumArgs); 10895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumArgs; ++i) 1090f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 10915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1092f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Canonical = getFunctionType(getCanonicalType(ResultTy), 10935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer &CanonicalArgs[0], NumArgs, 10947fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis isVariadic, TypeQuals); 10955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Get the new insert position for the node we care about. 10975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *NewIP = 10985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.FindNodeOrInsertPos(ID, InsertPos); 1099f6e764fe722440eaed18dad9eeff3d7e89a4d7afChris Lattner assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1102566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek // FunctionTypeProto objects are allocated with extra bytes after them 1103566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek // for a variable size array (for parameter types) at the end of them. 1104566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek // FIXME: Can we do better than forcing a 16-byte alignment? 11055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProto *FTP = 1106566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek (FunctionTypeProto*)Allocator.Allocate(sizeof(FunctionTypeProto) + 1107566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek NumArgs*sizeof(QualType), 16); 11085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer new (FTP) FunctionTypeProto(ResultTy, ArgArray, NumArgs, isVariadic, 1109971c4fae6092976338b755af1d47dac07c8f16e3Argyrios Kyrtzidis TypeQuals, Canonical); 11105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(FTP); 11115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FunctionTypeProtos.InsertNode(FTP, InsertPos); 11125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(FTP, 0); 11135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11152ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// getTypeDeclType - Return the unique reference to the type for the 11162ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor/// specified type declaration. 11174b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed KremenekQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 11181e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis assert(Decl && "Passed null for Decl param"); 11192ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 11202ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 11211e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 11222ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypedefType(Typedef); 112372c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor else if (TemplateTypeParmDecl *TP = dyn_cast<TemplateTypeParmDecl>(Decl)) 112472c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor return getTemplateTypeParmType(TP); 11251e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis else if (ObjCInterfaceDecl *ObjCInterface = dyn_cast<ObjCInterfaceDecl>(Decl)) 11262ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getObjCInterfaceType(ObjCInterface); 112749aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 11281e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis if (CXXRecordDecl *CXXRecord = dyn_cast<CXXRecordDecl>(Decl)) { 1129566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1130566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1131566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek else { 1132506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(CXXRecordType), 8); 1133566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = new (Mem) CXXRecordType(CXXRecord); 1134566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek } 11354b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 11361e6759e9e33dcaa73ce14c8a908ac9f87ac16463Argyrios Kyrtzidis else if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1137566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1138566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1139566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek else { 1140506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(RecordType), 8); 1141566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = new (Mem) RecordType(Record); 1142566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek } 1143566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek } 1144566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 1145566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek if (PrevDecl) 1146566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = PrevDecl->TypeForDecl; 1147566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek else { 1148506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(EnumType), 8); 1149566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = new (Mem) EnumType(Enum); 1150566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek } 11514b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek } 115249aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis else 11532ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor assert(false && "TypeDecl without a type?"); 115449aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis 11554b7c98378ae0c1a3635f0b7756848b4a9923f8bcTed Kremenek if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 115649aa7ff1245abd03e6e998e01302df31e4c6f8f6Argyrios Kyrtzidis return QualType(Decl->TypeForDecl, 0); 11572ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor} 11582ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor 11595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTypedefType - Return the unique reference to the type for the 11605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified typename decl. 11615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 11625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 11635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1164f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 1165506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(TypedefType), 8); 1166566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = new (Mem) TypedefType(Type::TypeName, Decl, Canonical); 11675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Types.push_back(Decl->TypeForDecl); 11685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return QualType(Decl->TypeForDecl, 0); 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 117172c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor/// getTemplateTypeParmType - Return the unique reference to the type 117272c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor/// for the specified template type parameter declaration. 117372c3f314d92d65c050ee1c07b7753623c044d6c7Douglas GregorQualType ASTContext::getTemplateTypeParmType(TemplateTypeParmDecl *Decl) { 117472c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor if (!Decl->TypeForDecl) { 1175506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(TemplateTypeParmType), 8); 1176566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = new (Mem) TemplateTypeParmType(Decl); 117772c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor Types.push_back(Decl->TypeForDecl); 117872c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor } 117972c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor return QualType(Decl->TypeForDecl, 0); 118072c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor} 118172c3f314d92d65c050ee1c07b7753623c044d6c7Douglas Gregor 1182a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCInterfaceType - Return the unique reference to the type for the 11833536b443bc50d58a79f14fca9b6842541a434854Steve Naroff/// specified ObjC interface decl. 1184a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCInterfaceType(ObjCInterfaceDecl *Decl) { 11853536b443bc50d58a79f14fca9b6842541a434854Steve Naroff if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 11863536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 1187506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(ObjCInterfaceType), 8); 1188566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek Decl->TypeForDecl = new (Mem) ObjCInterfaceType(Type::ObjCInterface, Decl); 11893536b443bc50d58a79f14fca9b6842541a434854Steve Naroff Types.push_back(Decl->TypeForDecl); 11903536b443bc50d58a79f14fca9b6842541a434854Steve Naroff return QualType(Decl->TypeForDecl, 0); 11913536b443bc50d58a79f14fca9b6842541a434854Steve Naroff} 11923536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 119388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// CmpProtocolNames - Comparison predicate for sorting protocols 119488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// alphabetically. 119588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 119688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner const ObjCProtocolDecl *RHS) { 11972e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor return LHS->getDeclName() < RHS->getDeclName(); 119888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 119988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 120088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattnerstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 120188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner unsigned &NumProtocols) { 120288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 120388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 120488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort protocols, keyed by name. 120588cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 120688cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 120788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Remove duplicates. 120888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 120988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner NumProtocols = ProtocolsEnd-Protocols; 121088cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner} 121188cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 121288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1213065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// getObjCQualifiedInterfaceType - Return a ObjCQualifiedInterfaceType type for 1214065f0d7b00c3cd2b3139ebd105f50462fc778859Chris Lattner/// the given interface decl and the conforming protocol list. 1215a526c5c67e5a0473c340903ee542ce570119665fTed KremenekQualType ASTContext::getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 1216a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 121788cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 121888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 121988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 12204b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian llvm::FoldingSetNodeID ID; 1221b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner ObjCQualifiedInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 12224b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 12234b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian void *InsertPos = 0; 1224a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedInterfaceType *QT = 1225a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 12264b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QT, 0); 12274b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 12284b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian // No Match; 1229506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(ObjCQualifiedInterfaceType), 8); 1230a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceType *QType = 1231566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek new (Mem) ObjCQualifiedInterfaceType(Decl, Protocols, NumProtocols); 1232566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek 12334b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian Types.push_back(QType); 1234a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedInterfaceTypes.InsertNode(QType, InsertPos); 12354b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian return QualType(QType, 0); 12364b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian} 12374b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 123888cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// getObjCQualifiedIdType - Return an ObjCQualifiedIdType for the 'id' decl 123988cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner/// and the conforming protocol list. 124062f5f7ffad57e0c2af2b308af3735351505937cbChris LattnerQualType ASTContext::getObjCQualifiedIdType(ObjCProtocolDecl **Protocols, 1241c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian unsigned NumProtocols) { 124288cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner // Sort the protocol list alphabetically to canonicalize it. 124388cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner SortAndUniqueProtocols(Protocols, NumProtocols); 124488cb27a160adc305783a44f922ee4b216006ebf9Chris Lattner 1245c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian llvm::FoldingSetNodeID ID; 1246a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdType::Profile(ID, Protocols, NumProtocols); 1247c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1248c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian void *InsertPos = 0; 1249a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCQualifiedIdType *QT = 125062f5f7ffad57e0c2af2b308af3735351505937cbChris Lattner ObjCQualifiedIdTypes.FindNodeOrInsertPos(ID, InsertPos)) 1251c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QT, 0); 1252c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1253c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian // No Match; 1254506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(ObjCQualifiedIdType), 8); 1255566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek ObjCQualifiedIdType *QType = 1256566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek new (Mem) ObjCQualifiedIdType(Protocols, NumProtocols); 1257c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian Types.push_back(QType); 1258a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCQualifiedIdTypes.InsertNode(QType, InsertPos); 1259c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian return QualType(QType, 0); 1260c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian} 1261c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 12629752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfExpr - Unlike many "get<Type>" functions, we can't unique 12639752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfExpr AST's (since expression's are never shared). For example, 12649752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// multiple declarations that refer to "typeof(x)" all contain different 12659752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// DeclRefExpr's. This doesn't effect the type checker, since it operates 12669752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 12678d1a3b8ca1e5fcc4567b5a6f51d82be2e460de1cSteve NaroffQualType ASTContext::getTypeOfExpr(Expr *tofExpr) { 1268f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofExpr->getType()); 1269b17e3b04fa50ca542ccbbf69847f62e5f043df03Douglas Gregor void *Mem = Allocator.Allocate(sizeof(TypeOfExpr), 8); 1270b17e3b04fa50ca542ccbbf69847f62e5f043df03Douglas Gregor TypeOfExpr *toe = new (Mem) TypeOfExpr(tofExpr, Canonical); 12719752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(toe); 12729752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(toe, 0); 1273d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1274d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 12759752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 12769752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// TypeOfType AST's. The only motivation to unique these nodes would be 12779752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 12789752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// an issue. This doesn't effect the type checker, since it operates 12799752f25748d954df99087d741ea35db37ff16beaSteve Naroff/// on canonical type's (which are always unique). 1280d1861fd633d5096a00777c918eb8575ea7162fe7Steve NaroffQualType ASTContext::getTypeOfType(QualType tofType) { 1281f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner QualType Canonical = getCanonicalType(tofType); 1282506010b2b6ea0e8f25bc0638a9aaca963eff3940Steve Naroff void *Mem = Allocator.Allocate(sizeof(TypeOfType), 8); 1283566c2ba743065ec090f5154d5c30cf593aa12a6eTed Kremenek TypeOfType *tot = new (Mem) TypeOfType(tofType, Canonical); 12849752f25748d954df99087d741ea35db37ff16beaSteve Naroff Types.push_back(tot); 12859752f25748d954df99087d741ea35db37ff16beaSteve Naroff return QualType(tot, 0); 1286d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff} 1287d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 12885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getTagDeclType - Return the unique reference to the type for the 12895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// specified TagDecl (struct/union/class/enum) decl. 12905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getTagDeclType(TagDecl *Decl) { 1291d778f88d32b96a74c9edb7342c81357606a7cdc0Ted Kremenek assert (Decl); 12922ce52f3fb95bf544db6bd3d91a72bce7d9cceb6cDouglas Gregor return getTypeDeclType(Decl); 12935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 12965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 12975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// needs to agree with the definition in <stddef.h>. 12985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerQualType ASTContext::getSizeType() const { 1299b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getSizeType()); 13005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 130255f4b02bc71e7347986c6a5249bef635aac1901aArgyrios Kyrtzidis/// getWCharType - Return the unique type for "wchar_t" (C99 7.17), the 1303fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// width of characters in wide strings, The value is target dependent and 1304fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman/// needs to agree with the definition in <stddef.h>. 130555f4b02bc71e7347986c6a5249bef635aac1901aArgyrios KyrtzidisQualType ASTContext::getWCharType() const { 130664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis if (LangOpts.CPlusPlus) 130764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 130864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 1309b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor // FIXME: In C, shouldn't WCharTy just be a typedef of the target's 1310b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor // wide-character type? 1311b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getWCharType()); 1312fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman} 1313fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman 131464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getSignedWCharType - Return the type of "signed wchar_t". 131564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 131664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getSignedWCharType() const { 131764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 131864c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return WCharTy; 131964c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 132064c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 132164c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 132264c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis/// Used when in C++, as a GCC extension. 132364c438a4be2a871fa43c78264663ba1e9788b94dArgyrios KyrtzidisQualType ASTContext::getUnsignedWCharType() const { 132464c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis // FIXME: derive from "Target" ? 132564c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis return UnsignedIntTy; 132664c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis} 132764c438a4be2a871fa43c78264663ba1e9788b94dArgyrios Kyrtzidis 13288b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 13298b9023ba35a86838789e2c9034a6128728c547aaChris Lattner/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 13308b9023ba35a86838789e2c9034a6128728c547aaChris LattnerQualType ASTContext::getPointerDiffType() const { 1331b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor return getFromTargetType(Target.getPtrDiffType(0)); 13328b9023ba35a86838789e2c9034a6128728c547aaChris Lattner} 13338b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 1334e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1335e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner// Type Operators 1336e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner//===----------------------------------------------------------------------===// 1337e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 133877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// getCanonicalType - Return the canonical (structural) type corresponding to 133977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// the specified potentially non-canonical type. The non-canonical version 134077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// of a type may have many "decorated" versions of types. Decorators can 134177c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 134277c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// to be free of any of these, allowing two canonical types to be compared 134377c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner/// for exact equality with a simple pointer comparison. 134477c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris LattnerQualType ASTContext::getCanonicalType(QualType T) { 134577c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner QualType CanType = T.getTypePtr()->getCanonicalTypeInternal(); 1346c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1347c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the result has type qualifiers, make sure to canonicalize them as well. 1348c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned TypeQuals = T.getCVRQualifiers() | CanType.getCVRQualifiers(); 1349c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (TypeQuals == 0) return CanType; 1350c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1351c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If the type qualifiers are on an array type, get the canonical type of the 1352c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // array with the qualifiers applied to the element type. 1353c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner ArrayType *AT = dyn_cast<ArrayType>(CanType); 1354c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!AT) 1355c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return CanType.getQualifiedType(TypeQuals); 1356c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1357c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1358c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1359c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy=AT->getElementType().getWithAdditionalQualifiers(TypeQuals); 1360c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getCanonicalType(NewEltTy); 1361c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1362c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 1363c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getConstantArrayType(NewEltTy, CAT->getSize(),CAT->getSizeModifier(), 1364c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier()); 1365c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 1366c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 1367c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier()); 1368c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1369898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 1370898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return getDependentSizedArrayType(NewEltTy, DSAT->getSizeExpr(), 1371898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1372898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier()); 1373898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1374c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VariableArrayType *VAT = cast<VariableArrayType>(AT); 1375c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1376c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1377c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier()); 1378c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner} 1379c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1380c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1381c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattnerconst ArrayType *ASTContext::getAsArrayType(QualType T) { 1382c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the non-qualified case efficiently. 1383c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getCVRQualifiers() == 0) { 1384c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common positive case fast. 1385c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 1386c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return AT; 1387c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1388c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1389c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Handle the common negative case fast, ignoring CVR qualifiers. 1390c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType CType = T->getCanonicalTypeInternal(); 1391c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1392c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Make sure to look through type qualifiers (like ASQuals) for the negative 1393c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // test. 1394c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (!isa<ArrayType>(CType) && 1395c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner !isa<ArrayType>(CType.getUnqualifiedType())) 1396c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return 0; 1397c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1398c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Apply any CVR qualifiers from the array type to the element type. This 1399c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // implements C99 6.7.3p8: "If the specification of an array type includes 1400c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // any type qualifiers, the element type is so qualified, not the array type." 1401c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1402c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we get here, we either have type qualifiers on the type, or we have 1403c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // sugar such as a typedef in the way. If we have type qualifiers on the type 1404c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // we must propagate them down into the elemeng type. 1405c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned CVRQuals = T.getCVRQualifiers(); 1406c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner unsigned AddrSpace = 0; 1407c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Type *Ty = T.getTypePtr(); 1408c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1409c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Rip through ASQualType's and typedefs to get to a concrete type. 1410c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner while (1) { 1411c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ASQualType *ASQT = dyn_cast<ASQualType>(Ty)) { 1412c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner AddrSpace = ASQT->getAddressSpace(); 1413c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = ASQT->getBaseType(); 1414c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else { 1415c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner T = Ty->getDesugaredType(); 1416c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (T.getTypePtr() == Ty && T.getCVRQualifiers() == 0) 1417c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner break; 1418c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CVRQuals |= T.getCVRQualifiers(); 1419c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner Ty = T.getTypePtr(); 1420c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1421c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } 1422c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1423c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // If we have a simple case, just return now. 1424c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 1425c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (ATy == 0 || (AddrSpace == 0 && CVRQuals == 0)) 1426c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return ATy; 1427c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1428c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Otherwise, we have an array and we have qualifiers on it. Push the 1429c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // qualifiers into the array element type and return a new array type. 1430c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the canonical version of the element with the extra qualifiers on it. 1431c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // This can recursively sink qualifiers through multiple levels of arrays. 1432c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType NewEltTy = ATy->getElementType(); 1433c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (AddrSpace) 1434c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = getASQualType(NewEltTy, AddrSpace); 1435c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner NewEltTy = NewEltTy.getWithAdditionalQualifiers(CVRQuals); 1436c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1437c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 1438c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 1439c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getSizeModifier(), 1440c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner CAT->getIndexTypeQualifier())); 1441c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 1442c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 1443c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getSizeModifier(), 1444c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner IAT->getIndexTypeQualifier())); 1445898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1446898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor if (const DependentSizedArrayType *DSAT 1447898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor = dyn_cast<DependentSizedArrayType>(ATy)) 1448898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor return cast<ArrayType>( 1449898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor getDependentSizedArrayType(NewEltTy, 1450898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeExpr(), 1451898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getSizeModifier(), 1452898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DSAT->getIndexTypeQualifier())); 1453c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner 1454c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 1455c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return cast<ArrayType>(getVariableArrayType(NewEltTy, VAT->getSizeExpr(), 1456c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getSizeModifier(), 1457c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner VAT->getIndexTypeQualifier())); 145877c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner} 145977c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 146077c9647cae939104c6cb2b6a4dd8ca859d2e5770Chris Lattner 1461e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// getArrayDecayedType - Return the properly qualified result of decaying the 1462e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// specified array type to a pointer. This operation is non-trivial when 1463e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// handling typedefs etc. The canonical type of "T" must be an array type, 1464e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// this returns a pointer to a properly qualified element of the array. 1465e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// 1466e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 1467e6327747b72bb687c948270f702ff53c30f411a6Chris LattnerQualType ASTContext::getArrayDecayedType(QualType Ty) { 1468c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Get the element type with 'getAsArrayType' so that we don't lose any 1469c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // typedefs in the element type of the array. This also handles propagation 1470c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // of type qualifiers from the array type into the element type if present 1471c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // (C99 6.7.3p8). 1472c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner const ArrayType *PrettyArrayType = getAsArrayType(Ty); 1473c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner assert(PrettyArrayType && "Not an array type!"); 1474e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1475c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 1476e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1477e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner // int x[restrict 4] -> int *restrict 1478c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner return PtrTy.getQualifiedType(PrettyArrayType->getIndexTypeQualifier()); 1479e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner} 1480e6327747b72bb687c948270f702ff53c30f411a6Chris Lattner 1481d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel DunbarQualType ASTContext::getBaseElementType(const VariableArrayType *VAT) { 14826183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson QualType ElemTy = VAT->getElementType(); 14836183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 14846183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson if (const VariableArrayType *VAT = getAsVariableArrayType(ElemTy)) 14856183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return getBaseElementType(VAT); 14866183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 14876183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson return ElemTy; 14886183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson} 14896183a99b064b397d98297904fbd6cf00fe1f453dAnders Carlsson 14905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// getFloatingRank - Return a relative rank for floating point types. 14915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// This routine will assert if passed a built-in type that isn't a float. 1492a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerstatic FloatingRank getFloatingRank(QualType T) { 1493ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb if (const ComplexType *CT = T->getAsComplexType()) 14945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return getFloatingRank(CT->getElementType()); 1495a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1496d786f6a6b791b5901fa9fd39a2bbf924afbc1252Daniel Dunbar assert(T->getAsBuiltinType() && "getFloatingRank(): not a floating type"); 1497ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb switch (T->getAsBuiltinType()->getKind()) { 1498a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner default: assert(0 && "getFloatingRank(): not a floating type"); 14995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Float: return FloatRank; 15005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::Double: return DoubleRank; 15015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case BuiltinType::LongDouble: return LongDoubleRank; 15025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1505716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 1506716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// point or a complex type (based on typeDomain/typeSize). 1507716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeDomain' is a real floating point or complex type. 1508716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff/// 'typeSize' is a real floating point or complex type. 15091361b11066239ea15764a2a844405352d87296b3Chris LattnerQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 15101361b11066239ea15764a2a844405352d87296b3Chris Lattner QualType Domain) const { 15111361b11066239ea15764a2a844405352d87296b3Chris Lattner FloatingRank EltRank = getFloatingRank(Size); 15121361b11066239ea15764a2a844405352d87296b3Chris Lattner if (Domain->isComplexType()) { 15131361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 1514716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff default: assert(0 && "getFloatingRank(): illegal value for rank"); 1515f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case FloatRank: return FloatComplexTy; 1516f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case DoubleRank: return DoubleComplexTy; 1517f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff case LongDoubleRank: return LongDoubleComplexTy; 1518f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 1519f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff } 15201361b11066239ea15764a2a844405352d87296b3Chris Lattner 15211361b11066239ea15764a2a844405352d87296b3Chris Lattner assert(Domain->isRealFloatingType() && "Unknown domain!"); 15221361b11066239ea15764a2a844405352d87296b3Chris Lattner switch (EltRank) { 15231361b11066239ea15764a2a844405352d87296b3Chris Lattner default: assert(0 && "getFloatingRank(): illegal value for rank"); 15241361b11066239ea15764a2a844405352d87296b3Chris Lattner case FloatRank: return FloatTy; 15251361b11066239ea15764a2a844405352d87296b3Chris Lattner case DoubleRank: return DoubleTy; 15261361b11066239ea15764a2a844405352d87296b3Chris Lattner case LongDoubleRank: return LongDoubleTy; 15275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15307cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getFloatingTypeOrder - Compare the rank of the two specified floating 15317cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// point types, ignoring the domain of the type (i.e. 'double' == 15327cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 15337cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 1534a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattnerint ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 1535a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank LHSR = getFloatingRank(LHS); 1536a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner FloatingRank RHSR = getFloatingRank(RHS); 1537a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner 1538a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR == RHSR) 1539fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 0; 1540a75cea3f6be0daa8054d36af81a6ffda1713f82dChris Lattner if (LHSR > RHSR) 1541fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return 1; 1542fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff return -1; 15435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1545f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 1546f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// routine will assert if passed a built-in type that isn't an integer or enum, 1547f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner/// or if it is not canonicalized. 1548f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattnerstatic unsigned getIntegerRank(Type *T) { 1549f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner assert(T->isCanonical() && "T should be canonicalized"); 1550f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner if (isa<EnumType>(T)) 1551f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner return 4; 1552f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 1553f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner switch (cast<BuiltinType>(T)->getKind()) { 15547cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner default: assert(0 && "getIntegerRank(): not a built-in integer"); 15557cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Bool: 15567cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 15577cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_S: 15587cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Char_U: 15597cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::SChar: 15607cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UChar: 15617cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 2; 15627cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Short: 15637cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UShort: 15647cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 3; 15657cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Int: 15667cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::UInt: 15677cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 4; 15687cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::Long: 15697cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULong: 15707cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 5; 15717cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::LongLong: 15727cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner case BuiltinType::ULongLong: 15737cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 6; 1574f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner } 1575f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner} 1576f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner 15777cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// getIntegerTypeOrder - Returns the highest ranked integer type: 15787cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 15797cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner/// LHS < RHS, return -1. 15807cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattnerint ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 1581f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *LHSC = getCanonicalType(LHS).getTypePtr(); 1582f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner Type *RHSC = getCanonicalType(RHS).getTypePtr(); 15837cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSC == RHSC) return 0; 15845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1585f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 1586f52ab250ff92bc51a9ac9a8e19bd43b63a5f844fChris Lattner bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 15875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15887cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned LHSRank = getIntegerRank(LHSC); 15897cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner unsigned RHSRank = getIntegerRank(RHSC); 15905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15917cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 15927cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank == RHSRank) return 0; 15937cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return LHSRank > RHSRank ? 1 : -1; 15947cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 15957cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 15967cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 15977cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSUnsigned) { 15987cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [LHS] type is larger, return it. 15997cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (LHSRank >= RHSRank) 16007cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 16017cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 16027cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 16037cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 16047cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 16057cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 16067cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner } 16077cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner 16087cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the unsigned [RHS] type is larger, return it. 16097cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner if (RHSRank >= LHSRank) 16107cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return -1; 16115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16127cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // If the signed type can represent all values of the unsigned type, it 16137cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // wins. Because we are dealing with 2's complement and types that are 16147cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner // powers of two larger than each other, this is always safe. 16157cfeb08f2466d6263ec6ff1402298f93f6d6991fChris Lattner return 1; 16165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 161771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 161871993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson// getCFConstantStringType - Return the type used for constant CFStrings. 161971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders CarlssonQualType ASTContext::getCFConstantStringType() { 162071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson if (!CFConstantStringTypeDecl) { 16216c2b6eb8d836da19007f7540709e16d5e39a1cbaChris Lattner CFConstantStringTypeDecl = 162239ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 1623df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Idents.get("NSConstantString")); 1624f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson QualType FieldTypes[4]; 162571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 162671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const int *isa; 162771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson FieldTypes[0] = getPointerType(IntTy.getQualifiedType(QualType::Const)); 1628f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson // int flags; 1629f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[1] = IntTy; 163071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // const char *str; 1631f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[2] = getPointerType(CharTy.getQualifiedType(QualType::Const)); 163271993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson // long length; 1633f06273f8bbacb086a46bde456429c8d08f6d07eeAnders Carlsson FieldTypes[3] = LongTy; 163471993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 163544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor // Create fields 163644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 163744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 163844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 163944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 16404afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 1641482b77d1cb4ca08391d1f749436f092a4cc24427Douglas Gregor CFConstantStringTypeDecl->addDecl(Field); 164244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 164344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 164444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor CFConstantStringTypeDecl->completeDefinition(*this); 164571993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson } 164671993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 164771993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson return getTagDeclType(CFConstantStringTypeDecl); 16488467583c2704e7a9691ea56939a029015f0ade0aGabor Greif} 1649b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 1650bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders CarlssonQualType ASTContext::getObjCFastEnumerationStateType() 1651bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson{ 1652bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson if (!ObjCFastEnumerationStateTypeDecl) { 165344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl = 165444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 165544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor &Idents.get("__objcFastEnumerationState")); 165644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 1657bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson QualType FieldTypes[] = { 1658bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson UnsignedLongTy, 1659bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(ObjCIdType), 1660bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getPointerType(UnsignedLongTy), 1661bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson getConstantArrayType(UnsignedLongTy, 1662bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson llvm::APInt(32, 5), ArrayType::Normal, 0) 1663bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson }; 1664bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 166544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (size_t i = 0; i < 4; ++i) { 166644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldDecl *Field = FieldDecl::Create(*this, 166744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl, 166844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor SourceLocation(), 0, 166944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldTypes[i], /*BitWidth=*/0, 16704afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /*Mutable=*/false); 1671482b77d1cb4ca08391d1f749436f092a4cc24427Douglas Gregor ObjCFastEnumerationStateTypeDecl->addDecl(Field); 167244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 1673bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 167444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 1675bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson } 1676bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1677bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 1678bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson} 1679bd4c1ada2e8668f43a865dc2c662085cf61940c4Anders Carlsson 1680e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// This returns true if a type has been typedefed to BOOL: 1681e8c49533521c40643653f943d47229e62d277f88Anders Carlsson// typedef <type> BOOL; 16822d99833e8c956775f2183601cd120b65b569c867Chris Lattnerstatic bool isTypeTypedefedAsBOOL(QualType T) { 1683e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 1684bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 1685bb49c3ee5d270485f4b273691fd14bc97403fa5dChris Lattner return II->isStr("BOOL"); 168685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 168785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return false; 168885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 168985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 1690a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingTypeSize returns size of type for objective-c encoding 169133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// purpose. 1692a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekint ASTContext::getObjCEncodingTypeSize(QualType type) { 169398be4943e8dc4f3905629a7102668960873cf863Chris Lattner uint64_t sz = getTypeSize(type); 169433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 169533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Make all integer and enum types at least as large as an int 169633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian if (sz > 0 && type->isIntegralType()) 169798be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = std::max(sz, getTypeSize(IntTy)); 169833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Treat arrays as pointers, since that's how they're passed in. 169933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian else if (type->isArrayType()) 170098be4943e8dc4f3905629a7102668960873cf863Chris Lattner sz = getTypeSize(VoidPtrTy); 170198be4943e8dc4f3905629a7102668960873cf863Chris Lattner return sz / getTypeSize(CharTy); 170233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 170333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1704a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek/// getObjCEncodingForMethodDecl - Return the encoded type for this method 170533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian/// declaration. 1706c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 1707e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 1708c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 1709ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Encode type qualifer, 'in', 'inout', etc. for the return type. 1710a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 171133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Encode result type. 17120d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(Decl->getResultType(), S); 171333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Compute size of all parameters. 171433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Start with computing size of a pointer in number of bytes. 171533e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // FIXME: There might(should) be a better way of doing this computation! 171633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian SourceLocation Loc; 171798be4943e8dc4f3905629a7102668960873cf863Chris Lattner int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 171833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // The first two arguments (self and _cmd) are pointers; account for 171933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // their size. 172033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int ParmOffset = 2 * PtrSize; 172133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian int NumOfParams = Decl->getNumParams(); 172233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 172333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType PType = Decl->getParamDecl(i)->getType(); 1724a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek int sz = getObjCEncodingTypeSize (PType); 1725a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 172633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset += sz; 172733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 172833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 172933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += "@0:"; 173033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(PtrSize); 173133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 173233e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // Argument types. 173333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian ParmOffset = 2 * PtrSize; 173433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian for (int i = 0; i < NumOfParams; i++) { 17354306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian ParmVarDecl *PVDecl = Decl->getParamDecl(i); 17364306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian QualType PType = PVDecl->getOriginalType(); 17374306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (const ArrayType *AT = 17384306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) 17394306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian // Use array's original type only if it has known number of 17404306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian // elements. 17414306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian if (!dyn_cast<ConstantArrayType>(AT)) 17424306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian PType = PVDecl->getType(); 1743ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Process argument qualifiers for user supplied arguments; such as, 174433e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian // 'in', 'inout', etc. 17454306d3cb9116605728252e2738df24b9f6ab53c3Fariborz Jahanian getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 17460d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar getObjCEncodingForType(PType, S); 174733e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian S += llvm::utostr(ParmOffset); 1748a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ParmOffset += getObjCEncodingTypeSize(PType); 174933e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian } 175033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian} 175133e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 1752c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// getObjCEncodingForPropertyDecl - Return the encoded type for this 175383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// property declaration. If non-NULL, Container must be either an 1754c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 1755c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar/// NULL when getting encodings for protocol properties. 175683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// Property attributes are stored as a comma-delimited C string. The simple 175783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// attributes readonly and bycopy are encoded as single characters. The 175883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// parametrized attributes, getter=name, setter=name, and ivar=name, are 175983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// encoded as single characters, followed by an identifier. Property types 176083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// are also encoded as a parametrized attribute. The characters used to encode 176183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// these attributes are defined by the following enumeration: 176283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @code 176383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// enum PropertyAttributes { 176483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyReadOnly = 'R', // property is read-only. 176583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 176683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyByref = '&', // property is a reference to the value last assigned 176783bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyDynamic = 'D', // property is dynamic 176883bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyGetter = 'G', // followed by getter selector name 176983bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertySetter = 'S', // followed by setter selector name 177083bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyInstanceVariable = 'V' // followed by instance variable name 177183bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyType = 't' // followed by old-style type encoding. 177283bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyWeak = 'W' // 'weak' property 177383bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyStrong = 'P' // property GC'able 177483bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// kPropertyNonAtomic = 'N' // property non-atomic 177583bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// }; 177683bccb85ff4b9981c4250c45494b439df8cbf983Fariborz Jahanian/// @endcode 1777c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbarvoid ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 1778c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const Decl *Container, 1779e6db3b09a79d4affaa5c7becbfb6bba3c08430c1Chris Lattner std::string& S) { 1780c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Collect information from the property implementation decl(s). 1781c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar bool Dynamic = false; 1782c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *SynthesizePID = 0; 1783c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1784c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: Duplicated code due to poor abstraction. 1785c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Container) { 1786c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (const ObjCCategoryImplDecl *CID = 1787c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar dyn_cast<ObjCCategoryImplDecl>(Container)) { 1788c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 1789c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = CID->propimpl_begin(), e = CID->propimpl_end(); i != e; ++i) { 1790c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 1791c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 1792c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 1793c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 1794c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1795c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 1796c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1797c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1798c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1799c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 180061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 1801c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar for (ObjCCategoryImplDecl::propimpl_iterator 1802c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar i = OID->propimpl_begin(), e = OID->propimpl_end(); i != e; ++i) { 1803c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar ObjCPropertyImplDecl *PID = *i; 1804c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyDecl() == PD) { 1805c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 1806c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar Dynamic = true; 1807c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1808c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar SynthesizePID = PID; 1809c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1810c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1811c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1812c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1813c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1814c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1815c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: This is not very efficient. 1816c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S = "T"; 1817c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1818c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // Encode result type. 1819090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // GCC has some special rules regarding encoding of properties which 1820090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // closely resembles encoding of ivars. 1821090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian getObjCEncodingForTypeImpl(PD->getType(), S, true, true, NULL, 1822090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* outermost type */, 1823090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian true /* encoding for property */); 1824c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1825c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->isReadOnly()) { 1826c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",R"; 1827c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } else { 1828c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar switch (PD->getSetterKind()) { 1829c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Assign: break; 1830c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Copy: S += ",C"; break; 1831c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar case ObjCPropertyDecl::Retain: S += ",&"; break; 1832c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1833c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1834c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1835c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // It really isn't clear at all what this means, since properties 1836c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // are "dynamic by default". 1837c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (Dynamic) 1838c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",D"; 1839c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1840090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 1841090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += ",N"; 1842090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian 1843c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 1844c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",G"; 1845077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getGetterName().getAsString(); 1846c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1847c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1848c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 1849c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",S"; 1850077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner S += PD->getSetterName().getAsString(); 1851c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1852c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1853c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar if (SynthesizePID) { 1854c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 1855c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar S += ",V"; 185639f34e97d6a468f0a7dfa5664c61217cffc65b74Chris Lattner S += OID->getNameAsString(); 1857c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar } 1858c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1859c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar // FIXME: OBJCGC: weak & strong 1860c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar} 1861c56f34a1c1779de15330bdb3eec39b3418802d47Daniel Dunbar 1862a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// getLegacyIntegralTypeEncoding - 1863a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// Another legacy compatibility encoding: 32-bit longs are encoded as 1864a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'l' or 'L', but not always. For typedefs, we need to use 1865a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 'i' or 'I' instead if encoding a struct field, or a pointer! 1866a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian/// 1867a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanianvoid ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 1868a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(PointeeTy.getTypePtr())) { 1869a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (const BuiltinType *BT = PointeeTy->getAsBuiltinType()) { 1870a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (BT->getKind() == BuiltinType::ULong) 1871a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = UnsignedIntTy; 1872a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian else if (BT->getKind() == BuiltinType::Long) 1873a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian PointeeTy = IntTy; 1874a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 1875a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 1876a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian} 1877a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 18787d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanianvoid ASTContext::getObjCEncodingForType(QualType T, std::string& S, 187943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FieldDecl *Field) const { 188082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // We follow the behavior of gcc, expanding structures which are 188182a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // directly pointed to, and expanding embedded structures. Note that 188282a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // these rules are sufficient to prevent recursive encoding of the 188382a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar // same type. 18845b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian getObjCEncodingForTypeImpl(T, S, true, true, Field, 18855b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian true /* outermost type */); 188682a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar} 188782a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar 18888b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanianstatic void EncodeBitField(const ASTContext *Context, std::string& S, 18898b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian FieldDecl *FD) { 18908b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian const Expr *E = FD->getBitWidth(); 18918b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 18928b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian ASTContext *Ctx = const_cast<ASTContext*>(Context); 18938b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian unsigned N = E->getIntegerConstantExprValue(*Ctx).getZExtValue(); 18948b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'b'; 18958b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += llvm::utostr(N); 18968b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian} 18978b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian 189882a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbarvoid ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 189982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandPointedToStructures, 190082a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar bool ExpandStructures, 19015b8c7d9fb620ba3a71e996d61e7b9bdf763b5c09Fariborz Jahanian FieldDecl *FD, 1902090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool OutermostType, 1903090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian bool EncodingProperty) const { 1904e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (const BuiltinType *BT = T->getAsBuiltinType()) { 190543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD && FD->isBitField()) { 19068b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 190785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 190843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else { 190943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian char encoding; 191043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian switch (BT->getKind()) { 191143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian default: assert(0 && "Unhandled builtin type kind"); 191243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Void: encoding = 'v'; break; 191343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Bool: encoding = 'B'; break; 191443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_U: 191543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UChar: encoding = 'C'; break; 191643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UShort: encoding = 'S'; break; 191743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::UInt: encoding = 'I'; break; 191843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::ULong: encoding = 'L'; break; 191943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::ULongLong: encoding = 'Q'; break; 192043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Char_S: 192143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::SChar: encoding = 'c'; break; 192243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Short: encoding = 's'; break; 192343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Int: encoding = 'i'; break; 192443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Long: encoding = 'l'; break; 192543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongLong: encoding = 'q'; break; 192643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Float: encoding = 'f'; break; 192743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::Double: encoding = 'd'; break; 192843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian case BuiltinType::LongDouble: encoding = 'd'; break; 192943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 193085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 193143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += encoding; 193243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 1933c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1934a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek else if (T->isObjCQualifiedIdType()) { 1935090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian getObjCEncodingForTypeImpl(getObjCIdType(), S, 1936090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandPointedToStructures, 1937090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ExpandStructures, FD); 1938090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 1939090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Note that we do extended encoding of protocol qualifer list 1940090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian // Only when doing ivar or property encoding. 1941090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian const ObjCQualifiedIdType *QIDT = T->getAsObjCQualifiedIdType(); 1942090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 1943090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian for (unsigned i =0; i < QIDT->getNumProtocols(); i++) { 1944090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCProtocolDecl *Proto = QIDT->getProtocols(i); 1945090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 1946090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += Proto->getNameAsString(); 1947090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 1948090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 1949090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '"'; 1950090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 1951090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian return; 1952c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian } 1953c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian else if (const PointerType *PT = T->getAsPointerType()) { 195485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson QualType PointeeTy = PT->getPointeeType(); 1955a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian bool isReadOnly = false; 1956a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // For historical/compatibility reasons, the read-only qualifier of the 1957a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // pointee gets emitted _before_ the '^'. The read-only qualifier of 1958a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // the pointer itself gets ignored, _unless_ we are looking at a typedef! 1959a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Also, do not emit the 'r' for anything but the outermost type! 1960a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (dyn_cast<TypedefType>(T.getTypePtr())) { 1961a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (OutermostType && T.isConstQualified()) { 1962a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 1963a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 1964a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 1965a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 1966a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian else if (OutermostType) { 1967a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType P = PointeeTy; 1968a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian while (P->getAsPointerType()) 1969a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian P = P->getAsPointerType()->getPointeeType(); 1970a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (P.isConstQualified()) { 1971a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian isReadOnly = true; 1972a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S += 'r'; 1973a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 1974a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 1975a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (isReadOnly) { 1976a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Another legacy compatibility encoding. Some ObjC qualifier and type 1977a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // combinations need to be rearranged. 1978a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian // Rewrite "in const" from "nr" to "rn" 1979a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian const char * s = S.c_str(); 1980a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian int len = S.length(); 1981a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 1982a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian std::string replace = "rn"; 1983a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian S.replace(S.end()-2, S.end(), replace); 1984a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 1985a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian } 1986c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian if (isObjCIdType(PointeeTy)) { 1987c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian S += '@'; 1988c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian return; 1989c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian } 1990c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian else if (PointeeTy->isObjCInterfaceType()) { 19913e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian if (dyn_cast<TypedefType>(PointeeTy.getTypePtr())) { 19923e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // Another historical/compatibility reason. 19933e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // We encode the underlying type which comes out as 19943e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian // {...}; 19953e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian S += '^'; 19963e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 19973e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian false, ExpandPointedToStructures, 19983e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian NULL); 19993e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian return; 20003e1b16c2e5b2c02d76e60ff28d609eeb21a2eb71Fariborz Jahanian } 2001c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian S += '@'; 2002090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian if (FD || EncodingProperty) { 2003090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian const ObjCInterfaceType *OIT = PointeeTy->getAsObjCInterfaceType(); 2004090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCInterfaceDecl *OI = OIT->getDecl(); 2005adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2006adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += OI->getNameAsCString(); 2007090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian for (unsigned i =0; i < OIT->getNumProtocols(); i++) { 2008090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian ObjCProtocolDecl *Proto = OIT->getProtocol(i); 2009090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '<'; 2010090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += Proto->getNameAsString(); 2011090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian S += '>'; 2012090b3f71702c5626d8520f9608d77c6f26dcfa15Fariborz Jahanian } 2013adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian S += '"'; 2014adcaf544a9d863a4afb29cc5420095320fccafd8Fariborz Jahanian } 2015c166d7390c300e84a0001c016b83f8aa6de9cf53Fariborz Jahanian return; 2016a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCClassType(PointeeTy)) { 20178baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += '#'; 20188baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2019a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (isObjCSelType(PointeeTy)) { 20208baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson S += ':'; 20218baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return; 2022c2939bc82ce177c0413feb0cd9ce70aefd6235fbFariborz Jahanian } 202385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 202485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (PointeeTy->isCharType()) { 202585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // char pointer types should be encoded as '*' unless it is a 202685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // type that has been typedef'd to 'BOOL'. 2027e8c49533521c40643653f943d47229e62d277f88Anders Carlsson if (!isTypeTypedefedAsBOOL(PointeeTy)) { 202885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '*'; 202985f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson return; 203085f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 203185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson } 203285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 203385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '^'; 2034a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(PointeeTy); 2035a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian 2036a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(PointeeTy, S, 2037d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar false, ExpandPointedToStructures, 203843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian NULL); 2039c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner } else if (const ArrayType *AT = 2040c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner // Ignore type qualifiers etc. 2041c63a1f276f7b324fd9a4be82098b1c8f7bf30733Chris Lattner dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 204285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += '['; 204385f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 204485f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 204585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += llvm::utostr(CAT->getSize().getZExtValue()); 204685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson else 204785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson assert(0 && "Unhandled array type!"); 204885f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 204982a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar getObjCEncodingForTypeImpl(AT->getElementType(), S, 205043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian false, ExpandStructures, FD); 205185f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson S += ']'; 2052c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson } else if (T->getAsFunctionType()) { 2053c0a87b7db06643178ad2cbce0767548c139ea387Anders Carlsson S += '?'; 20546de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } else if (const RecordType *RTy = T->getAsRecordType()) { 205582a6cfbc421cc99c5b7313271f399f7ef95056ecDaniel Dunbar RecordDecl *RDecl = RTy->getDecl(); 2056d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? '(' : '{'; 2057502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar // Anonymous structures print as '?' 2058502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar if (const IdentifierInfo *II = RDecl->getIdentifier()) { 2059502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += II->getName(); 2060502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } else { 2061502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar S += '?'; 2062502a4a1ce4c34cf78c8182d9798da0a51d9b7302Daniel Dunbar } 20630d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar if (ExpandStructures) { 20647d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian S += '='; 206544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (RecordDecl::field_iterator Field = RDecl->field_begin(), 206644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldEnd = RDecl->field_end(); 206744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 206843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (FD) { 2069d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 207044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor S += Field->getNameAsString(); 2071d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += '"'; 2072d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 2073d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar 2074d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar // Special case bit-fields. 207543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (Field->isBitField()) { 207643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 207743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian (*Field)); 2078d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } else { 2079a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian QualType qt = Field->getType(); 2080a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getLegacyIntegralTypeEncoding(qt); 2081a1c033e9514865f3a7b0d8b3b20e6de926cfec6cFariborz Jahanian getObjCEncodingForTypeImpl(qt, S, false, true, 208243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 2083d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar } 20847d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian } 20856de88a873a4cbe06d72602eef57d68006730a80bFariborz Jahanian } 2086d96b35bc6becf8db00d140c11e3d0e53f27567a1Daniel Dunbar S += RDecl->isUnion() ? ')' : '}'; 20875e71124dabe8017f17ce8996e4161a202694e3e6Steve Naroff } else if (T->isEnumeralType()) { 20888b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian if (FD && FD->isBitField()) 20898b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian EncodeBitField(this, S, FD); 20908b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian else 20918b4bf90eb6d3d08cf3bfb86705f0fdb20b9c5875Fariborz Jahanian S += 'i'; 2092485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff } else if (T->isBlockPointerType()) { 2093485eeff9ba73376c8e01179bf1a501b1723446cbSteve Naroff S += '^'; // This type string is the same as general pointers. 209443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } else if (T->isObjCInterfaceType()) { 209543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian // @encode(class_name) 209643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian ObjCInterfaceDecl *OI = T->getAsObjCInterfaceType()->getDecl(); 209743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '{'; 209843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian const IdentifierInfo *II = OI->getIdentifier(); 209943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += II->getName(); 210043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '='; 210143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian std::vector<FieldDecl*> RecFields; 210243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian CollectObjCIvars(OI, RecFields); 210343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian for (unsigned int i = 0; i != RecFields.size(); i++) { 210443822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian if (RecFields[i]->isBitField()) 210543822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 210643822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian RecFields[i]); 210743822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 210843822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 210943822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian FD); 211043822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 211143822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian S += '}'; 211243822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian } 211343822eaeddeaa419b90f23c68af6b23c46788a58Fariborz Jahanian else 2114f69cc5d6606fc65a76e3acd6eb6e13efd0098295Steve Naroff assert(0 && "@encode for type not implemented!"); 211585f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson} 211685f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 2117a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 2118ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string& S) const { 2119ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_In) 2120ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'n'; 2121ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Inout) 2122ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'N'; 2123ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Out) 2124ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'o'; 2125ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Bycopy) 2126ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'O'; 2127ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Byref) 2128ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'R'; 2129ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian if (QT & Decl::OBJC_TQ_Oneway) 2130ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian S += 'V'; 2131ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian} 2132ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 2133b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlssonvoid ASTContext::setBuiltinVaListType(QualType T) 2134b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson{ 2135b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 2136b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2137b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson BuiltinVaListType = T; 2138b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson} 2139b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 2140a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCIdType(TypedefDecl *TD) 21417e219e47de26346885d667131977bd9ca2d7662aSteve Naroff{ 2142a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCIdType = getTypedefType(TD); 21437e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 21447e219e47de26346885d667131977bd9ca2d7662aSteve Naroff // typedef struct objc_object *id; 21457e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2146c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2147c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2148c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 21497e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2150c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian // User error - caller will issue diagnostics. 2151c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2152c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 21537e219e47de26346885d667131977bd9ca2d7662aSteve Naroff IdStructType = rec; 21547e219e47de26346885d667131977bd9ca2d7662aSteve Naroff} 21557e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 2156a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCSelType(TypedefDecl *TD) 2157b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian{ 2158a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCSelType = getTypedefType(TD); 2159b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2160b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian // typedef struct objc_selector *SEL; 2161b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 2162c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!ptr) 2163c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2164b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 2165c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian if (!rec) 2166c55a24095c3488fa6e99b537be64e57a2905477bFariborz Jahanian return; 2167b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian SelStructType = rec; 2168b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian} 2169b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 2170a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCProtoType(QualType QT) 2171390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian{ 2172a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtoType = QT; 2173390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian} 2174390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 2175a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCClassType(TypedefDecl *TD) 21768baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson{ 2177a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCClassType = getTypedefType(TD); 21788baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 21798baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson // typedef struct objc_class *Class; 21808baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const PointerType *ptr = TD->getUnderlyingType()->getAsPointerType(); 21818baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(ptr && "'Class' incorrectly typed"); 21828baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 21838baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson assert(rec && "'Class' incorrectly typed"); 21848baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson ClassStructType = rec; 21858baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson} 21868baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 2187a526c5c67e5a0473c340903ee542ce570119665fTed Kremenekvoid ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 2188a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(ObjCConstantStringType.isNull() && 21892198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff "'NSConstantString' type already set!"); 21902198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 2191a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCConstantStringType = getObjCInterfaceType(Decl); 21922198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff} 21932198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 2194b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor/// getFromTargetType - Given one of the integer types provided by 2195d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// TargetInfo, produce the corresponding type. The unsigned @p Type 2196d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas Gregor/// is actually a value of type @c TargetInfo::IntType. 2197d934112e6170b0fd940d8e40db6936cea2cdcf62Douglas GregorQualType ASTContext::getFromTargetType(unsigned Type) const { 2198b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor switch (Type) { 2199b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::NoInt: return QualType(); 2200b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedShort: return ShortTy; 2201b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedShort: return UnsignedShortTy; 2202b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedInt: return IntTy; 2203b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedInt: return UnsignedIntTy; 2204b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLong: return LongTy; 2205b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLong: return UnsignedLongTy; 2206b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::SignedLongLong: return LongLongTy; 2207b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 2208b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor } 2209b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor 2210b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor assert(false && "Unhandled TargetInfo::IntType value"); 2211b3ac5434ab936f092b8cc48349cb01db3a1e1c76Daniel Dunbar return QualType(); 2212b4e66d5259f90e9aae4d40fc5de801e046c7df94Douglas Gregor} 2213b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2214b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2215b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek// Type Predicates. 2216b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek//===----------------------------------------------------------------------===// 2217b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2218fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// isObjCNSObjectType - Return true if this is an NSObject object using 2219fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// NSObject attribute on a c-style pointer type. 2220fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// FIXME - Make it work directly on types. 2221fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian/// 2222fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanianbool ASTContext::isObjCNSObjectType(QualType Ty) const { 2223fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 2224fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TypedefDecl *TD = TDT->getDecl()) 2225fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (TD->getAttr<ObjCNSObjectAttr>()) 2226fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 2227fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 2228fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return false; 2229fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 2230fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 2231b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// isObjCObjectPointerType - Returns true if type is an Objective-C pointer 2232b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to an object type. This includes "id" and "Class" (two 'special' pointers 2233b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// to struct), Interface* (pointer to ObjCInterfaceType) and id<P> (qualified 2234b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek/// ID type). 2235b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenekbool ASTContext::isObjCObjectPointerType(QualType Ty) const { 2236b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty->isObjCQualifiedIdType()) 2237b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 2238b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 22396ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // Blocks are objects. 22406ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff if (Ty->isBlockPointerType()) 22416ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff return true; 22426ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff 22436ae98506f93617b1eda486406b376c9b70cd2df3Steve Naroff // All other object types are pointers. 2244b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (!Ty->isPointerType()) 2245b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return false; 2246b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2247b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // Check to see if this is 'id' or 'Class', both of which are typedefs for 2248b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // pointer types. This looks for the typedef specifically, not for the 2249b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // underlying type. 2250b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek if (Ty == getObjCIdType() || Ty == getObjCClassType()) 2251b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek return true; 2252b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 2253b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek // If this a pointer to an interface (e.g. NSString*), it is ok. 2254fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Ty->getAsPointerType()->getPointeeType()->isObjCInterfaceType()) 2255fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return true; 2256fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 2257fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian // If is has NSObject attribute, OK as well. 2258fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return isObjCNSObjectType(Ty); 2259b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek} 2260b6ccaac65ca72f72954eb3893bbd940bedd23f00Ted Kremenek 22616ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 22626ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner// Type Compatibility Testing 22636ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner//===----------------------------------------------------------------------===// 2264770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner 22651c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff/// typesAreBlockCompatible - This routine is called when comparing two 2266dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// block types. Types must be strictly compatible here. For example, 2267dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// C unfortunately doesn't produce an error for the following: 2268dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2269dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*emptyArgFunc)(); 2270dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (*intArgList)(int) = emptyArgFunc; 2271dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2272dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// For blocks, we will produce an error for the following (similar to C++): 2273dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2274dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^emptyArgBlock)(); 2275dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// int (^intArgBlock)(int) = emptyArgBlock; 2276dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 2277dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// FIXME: When the dust settles on this integration, fold this into mergeTypes. 2278dd972f20dc2bd3609d833893e5c6544ac09b59a9Steve Naroff/// 22791c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroffbool ASTContext::typesAreBlockCompatible(QualType lhs, QualType rhs) { 2280c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *lbase = lhs->getAsFunctionType(); 2281c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionType *rbase = rhs->getAsFunctionType(); 2282c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionTypeProto *lproto = dyn_cast<FunctionTypeProto>(lbase); 2283c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff const FunctionTypeProto *rproto = dyn_cast<FunctionTypeProto>(rbase); 2284c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (lproto && rproto) 2285c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return !mergeTypes(lhs, rhs).isNull(); 2286c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return false; 22871c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff} 22881c7d067550c2d9bca8997d0e67ee6b280d493202Steve Naroff 22896ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// areCompatVectorTypes - Return true if the two specified vector types are 22906ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible. 22916ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattnerstatic bool areCompatVectorTypes(const VectorType *LHS, 22926ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const VectorType *RHS) { 22936ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHS->isCanonical() && RHS->isCanonical()); 22946ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return LHS->getElementType() == RHS->getElementType() && 229561710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner LHS->getNumElements() == RHS->getNumElements(); 22966ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 22976ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 22983d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman/// canAssignObjCInterfaces - Return true if the two interface types are 22996ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// compatible for assignment from RHS to LHS. This handles validation of any 23006ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// protocol qualifiers on the LHS or RHS. 23016ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner/// 23023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 23033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ObjCInterfaceType *RHS) { 23046ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Verify that the base decls are compatible: the RHS must be a subclass of 23056ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // the LHS. 23066ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 23076ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 23086ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23096ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // RHS must have a superset of the protocols in the LHS. If the LHS is not 23106ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // protocol qualified at all, then we are good. 23116ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(LHS)) 23126ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; 23136ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23146ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 23156ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // isn't a superset. 23166ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (!isa<ObjCQualifiedInterfaceType>(RHS)) 23176ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // FIXME: should return false! 23186ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23196ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Finally, we must have two protocol-qualified interfaces. 23206ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *LHSP =cast<ObjCQualifiedInterfaceType>(LHS); 23216ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner const ObjCQualifiedInterfaceType *RHSP =cast<ObjCQualifiedInterfaceType>(RHS); 23226ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPI = LHSP->qual_begin(); 23236ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator LHSPE = LHSP->qual_end(); 23246ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPI = RHSP->qual_begin(); 23256ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCQualifiedInterfaceType::qual_iterator RHSPE = RHSP->qual_end(); 23266ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23276ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // All protocols in LHS must have a presence in RHS. Since the protocol lists 23286ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // are both sorted alphabetically and have no duplicates, we can scan RHS and 23296ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // LHS in a single parallel scan until we run out of elements in LHS. 23306ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner assert(LHSPI != LHSPE && "Empty LHS protocol list?"); 23316ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *LHSProto = *LHSPI; 23326ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23336ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner while (RHSPI != RHSPE) { 23346ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ObjCProtocolDecl *RHSProto = *RHSPI++; 23356ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If the RHS has a protocol that the LHS doesn't, ignore it. 23366ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (RHSProto != LHSProto) 23376ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner continue; 23386ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23396ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // Otherwise, the RHS does have this element. 23406ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner ++LHSPI; 23416ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner if (LHSPI == LHSPE) 23426ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return true; // All protocols in LHS exist in RHS. 23436ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23446ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner LHSProto = *LHSPI; 23456ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner } 23466ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 23476ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner // If we got here, we didn't find one of the LHS's protocols in the RHS list. 23486ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner return false; 23496ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner} 23506ac46a4a521366d7ab36ebe2ce4e624ab96b06f9Chris Lattner 2351ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 2352ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// both shall have the identically qualified version of a compatible type. 2353ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// C99 6.2.7p1: Two types have compatible types if their types are the 2354ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff/// same. See 6.7.[2,3,5] for additional rules. 23553d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedmanbool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 23563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return !mergeTypes(LHS, RHS).isNull(); 23573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 23583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 23593d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 23603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *lbase = lhs->getAsFunctionType(); 23613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionType *rbase = rhs->getAsFunctionType(); 23623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *lproto = dyn_cast<FunctionTypeProto>(lbase); 23633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *rproto = dyn_cast<FunctionTypeProto>(rbase); 23643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allLTypes = true; 23653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman bool allRTypes = true; 23663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 23673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check return type 23683d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 23693d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (retType.isNull()) return QualType(); 237061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 237161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 237261710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 237361710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 23743d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 23753d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto && rproto) { // two C99 style function prototypes 23763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned lproto_nargs = lproto->getNumArgs(); 23773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned rproto_nargs = rproto->getNumArgs(); 23783d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 23793d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Compatible functions must have the same number of arguments 23803d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto_nargs != rproto_nargs) 23813d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 23823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 23833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Variadic and non-variadic functions aren't compatible 23843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto->isVariadic() != rproto->isVariadic()) 23853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 23863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 23877fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis if (lproto->getTypeQuals() != rproto->getTypeQuals()) 23887fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis return QualType(); 23897fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis 23903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check argument compatibility 23913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman llvm::SmallVector<QualType, 10> types; 23923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < lproto_nargs; i++) { 23933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 23943d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 23953d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argtype = mergeTypes(largtype, rargtype); 23963d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argtype.isNull()) return QualType(); 23973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman types.push_back(argtype); 239861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(largtype)) 239961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allLTypes = false; 240061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 240161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner allRTypes = false; 24023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 24033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 24043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 24053d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, types.begin(), types.size(), 24067fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->isVariadic(), lproto->getTypeQuals()); 24073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 24083d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (lproto) allRTypes = false; 24103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (rproto) allLTypes = false; 24113d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24123d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const FunctionTypeProto *proto = lproto ? lproto : rproto; 24133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto) { 24143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (proto->isVariadic()) return QualType(); 24153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Check that the types are compatible with the types that 24163d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // would result from default argument promotions (C99 6.7.5.3p15). 24173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // The only types actually affected are promotable integer 24183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // types and floats, which would be passed as a different 24193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // type depending on whether the prototype is visible. 24203d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman unsigned proto_nargs = proto->getNumArgs(); 24213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman for (unsigned i = 0; i < proto_nargs; ++i) { 24223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType argTy = proto->getArgType(i); 24233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (argTy->isPromotableIntegerType() || 24243d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 24253d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 24263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 24273d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 24293d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 24303d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionType(retType, proto->arg_type_begin(), 24317fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis proto->getNumArgs(), lproto->isVariadic(), 24327fb5e4888221cd36652d078c6b171ac55e7f406dArgyrios Kyrtzidis lproto->getTypeQuals()); 24333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 24343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allLTypes) return lhs; 24363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (allRTypes) return rhs; 24373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getFunctionTypeNoProto(retType); 24383d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman} 24393d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24403d815e7eb56c25d7ed812eced32e41df43039f9aEli FriedmanQualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 244143d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // C++ [expr]: If an expression initially has the type "reference to T", the 244243d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // type is adjusted to "T" prior to any further analysis, the expression 244343d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // designates the object or function denoted by the reference, and the 244443d69750e7f7b26076e7474dec8839bb777b260fBill Wendling // expression is an lvalue. 24453d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: C++ shouldn't be going through here! The rules are different 24463d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // enough that they should be handled separately. 24473d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = LHS->getAsReferenceType()) 2448c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner LHS = RT->getPointeeType(); 24493d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const ReferenceType *RT = RHS->getAsReferenceType()) 2450c4e405996217f4be20f73186da53b23b5c4783dcChris Lattner RHS = RT->getPointeeType(); 24513d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24523d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSCan = getCanonicalType(LHS), 24533d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman RHSCan = getCanonicalType(RHS); 24543d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 2455f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner // If two types are identical, they are compatible. 24563d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan == RHSCan) 24573d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 24583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // If the qualifiers are different, the types aren't compatible 24603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LHSCan.getCVRQualifiers() != RHSCan.getCVRQualifiers() || 24613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman LHSCan.getAddressSpace() != RHSCan.getAddressSpace()) 24623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 24633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass LHSClass = LHSCan->getTypeClass(); 24653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman Type::TypeClass RHSClass = RHSCan->getTypeClass(); 2466f3692dc4a47dc48d10cec0415c6e9e39b7a39707Chris Lattner 24671adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // We want to consider the two function types to be the same for these 24681adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // comparisons, just force one to the other. 24691adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 24701adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 24714c721d381fb279899337d120edd4a24d405e56b2Eli Friedman 24724c721d381fb279899337d120edd4a24d405e56b2Eli Friedman // Same as above for arrays 2473a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 2474a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner LHSClass = Type::ConstantArray; 2475a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 2476a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner RHSClass = Type::ConstantArray; 2477a36a61f218b9f7a97f2c0f511e0b29eb42e8f78bChris Lattner 2478213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman // Canonicalize ExtVector -> Vector. 2479213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 2480213541a68a3e137d11d2cefb612c6cdb410d7e8eNate Begeman if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 2481ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 2482b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner // Consider qualified interfaces and interfaces the same. 2483b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (LHSClass == Type::ObjCQualifiedInterface) LHSClass = Type::ObjCInterface; 2484b0489814dcb3cb801eeb0784cc6b6fcf575ff71dChris Lattner if (RHSClass == Type::ObjCQualifiedInterface) RHSClass = Type::ObjCInterface; 24853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 24864e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff // If the canonical type classes don't match. 24874e78fd0a960eaa7e97467f2e8f390f3a57da279bSteve Naroff if (LHSClass != RHSClass) { 2488bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // ID is compatible with all qualified id types. 2489bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (LHS->isObjCQualifiedIdType()) { 2490bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = RHS->getAsPointerType()) { 2491bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 2492bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (isObjCIdType(pType)) 2493bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 2494bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 2495bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 2496bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 2497bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 2498bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 2499bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return LHS; 2500bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2501bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2502bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (RHS->isObjCQualifiedIdType()) { 2503bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (const PointerType *PT = LHS->getAsPointerType()) { 2504bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff QualType pType = PT->getPointeeType(); 2505bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (isObjCIdType(pType)) 2506bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 2507bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // FIXME: need to use ObjCQualifiedIdTypesAreCompatible(LHS, RHS, true). 2508bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Unfortunately, this API is part of Sema (which we don't have access 2509bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // to. Need to refactor. The following check is insufficient, since we 2510bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // need to make sure the class implements the protocol. 2511bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff if (pType->isObjCInterfaceType()) 2512bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return RHS; 2513bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 2514bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff } 25151adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 25161adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner // a signed integer type, or an unsigned integer type. 25173d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = LHS->getAsEnumType()) { 25183d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 25193d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 2520bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 25213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (const EnumType* ETy = RHS->getAsEnumType()) { 25223d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 25233d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 2524bab96968886f4b77083f4e26a28986ddb1e42d67Eli Friedman } 25251adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner 25263d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2527ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 25283d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 25294a74678ed6c3dedac05d02b1ee341f1db869f049Steve Naroff // The canonical type classes match. 25301adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner switch (LHSClass) { 25311adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Pointer: 25323d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 25333d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Merge two pointer types, while trying to preserve typedef info 25343d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSPointee = LHS->getAsPointerType()->getPointeeType(); 25353d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSPointee = RHS->getAsPointerType()->getPointeeType(); 25363d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 25373d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 253861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 253961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 254061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 254161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 25423d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return getPointerType(ResultType); 25433d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 2544c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff case Type::BlockPointer: 2545c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff { 2546c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff // Merge two block pointer types, while trying to preserve typedef info 2547c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType LHSPointee = LHS->getAsBlockPointerType()->getPointeeType(); 2548c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType RHSPointee = RHS->getAsBlockPointerType()->getPointeeType(); 2549c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 2550c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (ResultType.isNull()) return QualType(); 2551c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 2552c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return LHS; 2553c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 2554c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return RHS; 2555c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff return getBlockPointerType(ResultType); 2556c0febd58f5cbf4a93fd12f461863564dba0af76dSteve Naroff } 25571adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ConstantArray: 25583d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman { 25593d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 25603d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 25613d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 25623d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 25633d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman 25643d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType LHSElem = getAsArrayType(LHS)->getElementType(); 25653d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType RHSElem = getAsArrayType(RHS)->getElementType(); 25663d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman QualType ResultType = mergeTypes(LHSElem, RHSElem); 25673d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (ResultType.isNull()) return QualType(); 256861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 256961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 257061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 257161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 25723bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 25733bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 25743bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 25753bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman ArrayType::ArraySizeModifier(), 0); 25763d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 25773d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 257861710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 257961710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return LHS; 258061710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 258161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return RHS; 25823d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (LVAT) { 25833d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 25843d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of LHS, but the type 25853d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 25863d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 25873d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 25883d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (RVAT) { 25893d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: This isn't correct! But tricky to implement because 25903d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // the array's size has to be the size of RHS, but the type 25913d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // has to be different. 25923d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return RHS; 25933d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 25943bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 25953bc0f45a5e65814f42b22dcdf7249d1120d16f36Eli Friedman if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 259661710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return getIncompleteArrayType(ResultType, ArrayType::ArraySizeModifier(),0); 25973d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman } 25981adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::FunctionNoProto: 25993d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return mergeFunctionTypes(LHS, RHS); 26003d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman case Type::Tagged: 26013d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // FIXME: Why are these compatible? 26023d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCIdType(LHS) && isObjCClassType(RHS)) return LHS; 26033d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (isObjCClassType(LHS) && isObjCIdType(RHS)) return LHS; 26043d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 26051adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::Builtin: 26063cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner // Only exactly equal builtin types are compatible, which is tested above. 26073d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 26083cc4c0c3058a788689b8fc73c0ac139544435c97Chris Lattner case Type::Vector: 26093d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman if (areCompatVectorTypes(LHS->getAsVectorType(), RHS->getAsVectorType())) 26103d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return LHS; 261161710854be2b098428aff5316e64bd34b30fbcb7Chris Lattner return QualType(); 26121adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner case Type::ObjCInterface: 26133d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // Distinct ObjC interfaces are not compatible; see canAssignObjCInterfaces 26143d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman // for checking assignment/comparison safety 26153d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2616bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff case Type::ObjCQualifiedId: 2617bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff // Distinct qualified id's are not compatible. 2618bc76dd06eb881c70c9775b74bab8b88cd747f173Steve Naroff return QualType(); 26191adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner default: 26201adb88370beab45af2f065afe86b51ccd59ec50dChris Lattner assert(0 && "unexpected type"); 26213d815e7eb56c25d7ed812eced32e41df43039f9aEli Friedman return QualType(); 2622ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 2623ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff} 26247192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 26255426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 2626ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman// Integer Predicates 2627ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 262888054dee0402e4d3c1f64e6b697acc47195c0d72Chris Lattner 2629ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedmanunsigned ASTContext::getIntWidth(QualType T) { 2630ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (T == BoolTy) 2631ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return 1; 2632ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman // At the moment, only bool has padding bits 2633ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return (unsigned)getTypeSize(T); 2634ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 2635ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2636ad74a758189180b8ab8faea648e4766c3bfd7fcbEli FriedmanQualType ASTContext::getCorrespondingUnsignedType(QualType T) { 2637ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(T->isSignedIntegerType() && "Unexpected type"); 2638ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman if (const EnumType* ETy = T->getAsEnumType()) 2639ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman T = ETy->getDecl()->getIntegerType(); 2640ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman const BuiltinType* BTy = T->getAsBuiltinType(); 2641ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert (BTy && "Unexpected signed integer type"); 2642ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman switch (BTy->getKind()) { 2643ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Char_S: 2644ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::SChar: 2645ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedCharTy; 2646ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Short: 2647ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedShortTy; 2648ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Int: 2649ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedIntTy; 2650ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::Long: 2651ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongTy; 2652ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman case BuiltinType::LongLong: 2653ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return UnsignedLongLongTy; 2654ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman default: 2655ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman assert(0 && "Unexpected signed integer type"); 2656ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman return QualType(); 2657ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman } 2658ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman} 2659ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2660ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman 2661ad74a758189180b8ab8faea648e4766c3bfd7fcbEli Friedman//===----------------------------------------------------------------------===// 26625426bf6456a5aeac416a9150de157904d101c819Chris Lattner// Serialization Support 26635426bf6456a5aeac416a9150de157904d101c819Chris Lattner//===----------------------------------------------------------------------===// 26645426bf6456a5aeac416a9150de157904d101c819Chris Lattner 26657192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek/// Emit - Serialize an ASTContext object to Bitcode. 26667192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenekvoid ASTContext::Emit(llvm::Serializer& S) const { 2667e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek S.Emit(LangOpts); 26685451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(SourceMgr); 26695451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Target); 26705451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Idents); 26715451350ea6881c55c9e05f3a15486471b97f0757Ted Kremenek S.EmitRef(Selectors); 26727192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 2673fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // Emit the size of the type vector so that we can reserve that size 2674fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek // when we reconstitute the ASTContext object. 2675a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek S.EmitInt(Types.size()); 2676a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 267703ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (std::vector<Type*>::const_iterator I=Types.begin(), E=Types.end(); 267803ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek I!=E;++I) 267903ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek (*I)->Emit(S); 2680a4559c3f69f3a5b01cced8df4f69c03c45821c74Ted Kremenek 2681ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis S.EmitOwnedPtr(TUDecl); 2682ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 2683a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: S.EmitOwnedPtr(CFConstantStringTypeDecl); 26847192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek} 26857192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 26860f84c0059cec39fd1c73ac05bc2864dca664e7f4Ted KremenekASTContext* ASTContext::Create(llvm::Deserializer& D) { 2687e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 2688e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek // Read the language options. 2689e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LangOptions LOpts; 2690e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek LOpts.Read(D); 2691e7d07d113677a39026ff5119b8b67f6fe8ca9793Ted Kremenek 2692fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SourceManager &SM = D.ReadRef<SourceManager>(); 2693fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek TargetInfo &t = D.ReadRef<TargetInfo>(); 2694fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek IdentifierTable &idents = D.ReadRef<IdentifierTable>(); 2695fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SelectorTable &sels = D.ReadRef<SelectorTable>(); 26960ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 2697fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek unsigned size_reserve = D.ReadInt(); 2698fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 26992e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor ASTContext* A = new ASTContext(LOpts, SM, t, idents, sels, 27002e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor size_reserve); 2701fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 270203ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek for (unsigned i = 0; i < size_reserve; ++i) 270303ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek Type::Create(*A,i,D); 27040ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 2705ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis A->TUDecl = cast<TranslationUnitDecl>(D.ReadOwnedPtr<Decl>(*A)); 2706ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 2707a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek // FIXME: A->CFConstantStringTypeDecl = D.ReadOwnedPtr<RecordDecl>(); 2708fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 2709fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek return A; 2710fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek} 2711