ASTContext.h revision 6083ea3723ec3996ae3bdf8d1b352b0c3b3922c8
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- ASTContext.h - Context to hold long-lived AST nodes ----*- C++ -*-===// 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 defines the ASTContext interface. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#ifndef LLVM_CLANG_AST_ASTCONTEXT_H 155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#define LLVM_CLANG_AST_ASTCONTEXT_H 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/Builtins.h" 185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/Expr.h" 19464175bba1318bef7905122e9fda20cff926df78Chris Lattner#include "clang/AST/RecordLayout.h" 20464175bba1318bef7905122e9fda20cff926df78Chris Lattner#include "clang/AST/Type.h" 21464175bba1318bef7905122e9fda20cff926df78Chris Lattner#include "llvm/ADT/DenseMap.h" 22a9aa5e69d8253e196be90c070738ab5bd9813730Steve Naroff#include "llvm/ADT/StringMap.h" 2368d331a78e655d97294e94fcfa63f92cc1f40578Steve Naroff#include "llvm/ADT/FoldingSet.h" 247192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek#include "llvm/Bitcode/SerializationFwd.h" 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include <vector> 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class TargetInfo; 29c7229c338c21ef26b01ef3ecf9eec4fd373fa9ecChris Lattner class IdentifierTable; 30980e508ca70d6de75d2abfd96b4681fc98bb2698Steve Naroff 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ASTContext - This class holds long-lived AST nodes (such as types and 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// decls) that can be referred to throughout the semantic analysis of a file. 332bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenekclass ASTContext { 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer std::vector<Type*> Types; 35ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb llvm::FoldingSet<ASQualType> ASQualTypes; 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSet<ComplexType> ComplexTypes; 375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSet<PointerType> PointerTypes; 385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSet<ReferenceType> ReferenceTypes; 397192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek llvm::FoldingSet<ConstantArrayType> ConstantArrayTypes; 402bd24ba6d10f8c811c8e2a57c8397e07082ba497Ted Kremenek llvm::FoldingSet<VariableArrayType> IncompleteVariableArrayTypes; 41347b9f33b3216459bcf60cdd52c739fa3028321eTed Kremenek std::vector<VariableArrayType*> CompleteVariableArrayTypes; 425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSet<VectorType> VectorTypes; 435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSet<FunctionTypeNoProto> FunctionTypeNoProtos; 445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSet<FunctionTypeProto> FunctionTypeProtos; 45a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek llvm::FoldingSet<ObjCQualifiedInterfaceType> ObjCQualifiedInterfaceTypes; 46a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek llvm::FoldingSet<ObjCQualifiedIdType> ObjCQualifiedIdTypes; 4788a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel /// ASTRecordLayouts - A cache mapping from RecordDecls to ASTRecordLayouts. 48a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek /// This is lazily created. This is intentionally not serialized. 4988a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*> ASTRecordLayouts; 507d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian 517d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian llvm::SmallVector<const RecordType *, 8> EncodingRecordTypes; 52b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 53b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson /// BuiltinVaListType - built-in va list type. 54b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson /// This is initially null and set by Sema::LazilyCreateBuiltin when 55b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson /// a builtin that takes a valist is encountered. 56b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson QualType BuiltinVaListType; 577e219e47de26346885d667131977bd9ca2d7662aSteve Naroff 586083ea3723ec3996ae3bdf8d1b352b0c3b3922c8Ted Kremenek /// ObjCIdType - a pseudo built-in typedef type (set by Sema). 59a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek QualType ObjCIdType; 607e219e47de26346885d667131977bd9ca2d7662aSteve Naroff const RecordType *IdStructType; 612198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff 626083ea3723ec3996ae3bdf8d1b352b0c3b3922c8Ted Kremenek /// ObjCSelType - another pseudo built-in typedef type (set by Sema). 63a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek QualType ObjCSelType; 64b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian const RecordType *SelStructType; 65b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 666083ea3723ec3996ae3bdf8d1b352b0c3b3922c8Ted Kremenek /// ObjCProtoType - another pseudo built-in typedef type (set by Sema). 67a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek QualType ObjCProtoType; 68390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian const RecordType *ProtoStructType; 698baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 706083ea3723ec3996ae3bdf8d1b352b0c3b3922c8Ted Kremenek /// ObjCClassType - another pseudo built-in typedef type (set by Sema). 71a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek QualType ObjCClassType; 728baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson const RecordType *ClassStructType; 73390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 74a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek QualType ObjCConstantStringType; 752198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff RecordDecl *CFConstantStringTypeDecl; 767a9d49fd2bfac00e905b361ba76d26ab5b6c3b09Ted Kremenek 77b800dc2d5e27ec60f567567b623cdc61152b8fb8Chris Lattner SourceManager &SourceMgr; 787a9d49fd2bfac00e905b361ba76d26ab5b6c3b09Ted Kremenekpublic: 795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer TargetInfo &Target; 8071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson IdentifierTable &Idents; 8129238a0bf7cbf5b396efb451a0adb5fe4aa037caSteve Naroff SelectorTable &Selectors; 82a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek 837a9d49fd2bfac00e905b361ba76d26ab5b6c3b09Ted Kremenek SourceManager& getSourceManager() { return SourceMgr; } 849c728dc4d8da89c73fcae74c9e72d7a83ffd7b6dTed Kremenek 859c728dc4d8da89c73fcae74c9e72d7a83ffd7b6dTed Kremenek FullSourceLoc getFullLoc(SourceLocation Loc) const { 869c728dc4d8da89c73fcae74c9e72d7a83ffd7b6dTed Kremenek return FullSourceLoc(Loc,SourceMgr); 879c728dc4d8da89c73fcae74c9e72d7a83ffd7b6dTed Kremenek } 887a9d49fd2bfac00e905b361ba76d26ab5b6c3b09Ted Kremenek 89a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek /// This is intentionally not serialized. It is populated by the 90a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek /// ASTContext ctor, and there are no external pointers/references to 91a9a4a24592a2164114a8a36717650e6341eb67a4Ted Kremenek /// internal variables of BuiltinInfo. 925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Builtin::Context BuiltinInfo; 935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Builtin Types. 955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType VoidTy; 965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType BoolTy; 975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType CharTy; 985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType SignedCharTy, ShortTy, IntTy, LongTy, LongLongTy; 995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType UnsignedCharTy, UnsignedShortTy, UnsignedIntTy, UnsignedLongTy; 1005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType UnsignedLongLongTy; 1015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType FloatTy, DoubleTy, LongDoubleTy; 1025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType FloatComplexTy, DoubleComplexTy, LongDoubleComplexTy; 10333e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian QualType VoidPtrTy; 1045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10568d331a78e655d97294e94fcfa63f92cc1f40578Steve Naroff ASTContext(SourceManager &SM, TargetInfo &t, IdentifierTable &idents, 106fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek SelectorTable &sels, unsigned size_reserve=0 ) : 10768d331a78e655d97294e94fcfa63f92cc1f40578Steve Naroff CFConstantStringTypeDecl(0), SourceMgr(SM), Target(t), 10868d331a78e655d97294e94fcfa63f92cc1f40578Steve Naroff Idents(idents), Selectors(sels) { 109fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 110fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek if (size_reserve > 0) Types.reserve(size_reserve); 1115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinTypes(); 1125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinInfo.InitializeBuiltins(idents, Target); 113fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek } 114fee0452973f28691a61aab0fb074468ce3e34b9bTed Kremenek 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ~ASTContext(); 1165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void PrintStats() const; 11803ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek const std::vector<Type*>& getTypes() const { return Types; } 11903ed44061df258e74a40383bda849e14b892a8c6Ted Kremenek 120464175bba1318bef7905122e9fda20cff926df78Chris Lattner //===--------------------------------------------------------------------===// 121464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Type Constructors 122464175bba1318bef7905122e9fda20cff926df78Chris Lattner //===--------------------------------------------------------------------===// 123d2d2a11a91d7ddf468bfb70f66362d24806ed601Chris Lattner 124ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb /// getAddrSpaceQualType - Return the uniqued reference to the type for an 125ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb /// address space qualified type with the specified type and address space. 126ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb QualType getASQualType(QualType T, unsigned AddressSpace); 127ebb97e98c03f8d7034bd3748a10e35f39a95c289Christopher Lamb 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getComplexType - Return the uniqued reference to the type for a complex 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// number with the specified element type. 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getComplexType(QualType T); 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getPointerType - Return the uniqued reference to the type for a pointer to 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the specified type. 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getPointerType(QualType T); 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getReferenceType - Return the uniqued reference to the type for a 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// reference to the specified type. 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getReferenceType(QualType T); 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 140bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff /// getVariableArrayType - Returns a non-unique reference to the type for a 141bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff /// variable array of the specified element type. 142c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff QualType getVariableArrayType(QualType EltTy, Expr *NumElts, 143c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 144c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals); 145fb22d96692c5240fb8d611290dbf7eeed3759c73Steve Naroff 146bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff /// getConstantArrayType - Return the unique reference to the type for a 147bdbf7b030a3e0ddb95240076683830e6f78c79a5Steve Naroff /// constant array of the specified element type. 148c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff QualType getConstantArrayType(QualType EltTy, const llvm::APInt &ArySize, 149c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff ArrayType::ArraySizeModifier ASM, 150c9406125e2cac9208098655ac8058c095c2c3a65Steve Naroff unsigned EltTypeQuals); 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15273322924127c873c13101b705dd823f5539ffa5fSteve Naroff /// getVectorType - Return the unique reference to a vector type of 15373322924127c873c13101b705dd823f5539ffa5fSteve Naroff /// the specified element type and size. VectorType must be a built-in type. 15473322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType getVectorType(QualType VectorType, unsigned NumElts); 15573322924127c873c13101b705dd823f5539ffa5fSteve Naroff 15673322924127c873c13101b705dd823f5539ffa5fSteve Naroff /// getOCUVectorType - Return the unique reference to an OCU vector type of 15773322924127c873c13101b705dd823f5539ffa5fSteve Naroff /// the specified element type and size. VectorType must be a built-in type. 15873322924127c873c13101b705dd823f5539ffa5fSteve Naroff QualType getOCUVectorType(QualType VectorType, unsigned NumElts); 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getFunctionTypeNoProto - Return a K&R style C function type like 'int()'. 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getFunctionTypeNoProto(QualType ResultTy); 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getFunctionType - Return a normal function type with a typed argument 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// list. isVariadic indicates whether the argument list includes '...'. 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getFunctionType(QualType ResultTy, QualType *ArgArray, 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs, bool isVariadic); 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getTypedefType - Return the unique reference to the type for the 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// specified typename decl. 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getTypedefType(TypedefDecl *Decl); 172a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek QualType getObjCInterfaceType(ObjCInterfaceDecl *Decl); 1734b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian 174a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek /// getObjCQualifiedInterfaceType - Return a 175a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek /// ObjCQualifiedInterfaceType type for the given interface decl and 1764b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian /// the conforming protocol list. 177a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek QualType getObjCQualifiedInterfaceType(ObjCInterfaceDecl *Decl, 178a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **ProtocolList, unsigned NumProtocols); 179c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 180a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek /// getObjCQualifiedIdType - Return an ObjCQualifiedIdType for a 181c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian /// given 'id' and conforming protocol list. 182a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek QualType getObjCQualifiedIdType(QualType idType, 183a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCProtocolDecl **ProtocolList, 184c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian unsigned NumProtocols); 185c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian 1865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 187d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff /// getTypeOfType - GCC extension. 1888d1a3b8ca1e5fcc4567b5a6f51d82be2e460de1cSteve Naroff QualType getTypeOfExpr(Expr *e); 189d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff QualType getTypeOfType(QualType t); 190d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff 1915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getTagDeclType - Return the unique reference to the type for the 1925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// specified TagDecl (struct/union/class/enum) decl. 1935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getTagDeclType(TagDecl *Decl); 1945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getSizeType - Return the unique type for "size_t" (C99 7.17), defined 1965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// in <stddef.h>. The sizeof operator requires this (C99 6.5.3.4p4). 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getSizeType() const; 198fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman 199fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman /// getWcharType - Return the unique type for "wchar_t" (C99 7.17), defined 200fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman /// in <stddef.h>. Wide strings require this (C99 6.4.5p5). 201fd888a581d6d329f5b447c8ff4d37cf396315993Eli Friedman QualType getWcharType() const; 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2038b9023ba35a86838789e2c9034a6128728c547aaChris Lattner /// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 2048b9023ba35a86838789e2c9034a6128728c547aaChris Lattner /// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 2058b9023ba35a86838789e2c9034a6128728c547aaChris Lattner QualType getPointerDiffType() const; 2068b9023ba35a86838789e2c9034a6128728c547aaChris Lattner 207beaf299a2701c5559a4e5d76b0c40f805afb8e6aSteve Naroff // getCFConstantStringType - Return the C structure type used to represent 208beaf299a2701c5559a4e5d76b0c40f805afb8e6aSteve Naroff // constant CFStrings. 20971993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson QualType getCFConstantStringType(); 21071993dd85eed9cc42c6b2fa61ee5c53026b74817Anders Carlsson 211983df5b2280980e59b0b062bcc2882230465a61eSteve Naroff // This setter/getter represents the ObjC type for an NSConstantString. 212a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek void setObjCConstantStringInterface(ObjCInterfaceDecl *Decl); 213a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek QualType getObjCConstantStringInterface() const { 214a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek return ObjCConstantStringType; 2152198891824c38d45b2279de5d5e3ef9394eb457cSteve Naroff } 216b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 21785f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson // Return the ObjC type encoding for a given type. 2187d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian void getObjCEncodingForType(QualType t, std::string &S, 2197d6b46d9a9d75dea8ef9f6973dd50633c1f37963Fariborz Jahanian llvm::SmallVector<const RecordType *, 8> &RT) const; 22033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 221ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian // Put the string version of type qualifiers into S. 222a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek void getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 223ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian std::string &S) const; 224ecb01e666665efabd2aa76a76f6080e2a78965faFariborz Jahanian 225a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek /// getObjCEncodingForMethodDecl - Return the encoded type for this method 22633e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian /// declaration. 227a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek void getObjCEncodingForMethodDecl(ObjCMethodDecl *Decl, std::string &S); 22833e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian 229a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek /// getObjCEncodingTypeSize returns size of type for objective-c encoding 23033e1d64ab5cd5d27f8530ccd056191fe2c9f3f2eFariborz Jahanian /// purpose. 231a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek int getObjCEncodingTypeSize(QualType t); 23285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson 233983df5b2280980e59b0b062bcc2882230465a61eSteve Naroff // This setter/getter repreents the ObjC 'id' type. It is setup lazily, by 234983df5b2280980e59b0b062bcc2882230465a61eSteve Naroff // Sema. 235a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek void setObjCIdType(TypedefDecl *Decl); 236a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek QualType getObjCIdType() const { return ObjCIdType; } 237b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 238a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek void setObjCSelType(TypedefDecl *Decl); 239a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek QualType getObjCSelType() const { return ObjCSelType; } 240b62f6813406a03bf8a371c4e46c9fad51d102121Fariborz Jahanian 241a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek void setObjCProtoType(QualType QT); 242a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek QualType getObjCProtoType() const { return ObjCProtoType; } 243390d50a725497e99247dc104a7d2c2a255d3af14Fariborz Jahanian 244a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek void setObjCClassType(TypedefDecl *Decl); 245a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek QualType getObjCClassType() const { return ObjCClassType; } 2468baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 247b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson void setBuiltinVaListType(QualType T); 248b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson QualType getBuiltinVaListType() const { return BuiltinVaListType; } 249b2cf3573d7351094f6247fcca94703ce88eb9ee0Anders Carlsson 250464175bba1318bef7905122e9fda20cff926df78Chris Lattner //===--------------------------------------------------------------------===// 251464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Type Sizing and Analysis 252464175bba1318bef7905122e9fda20cff926df78Chris Lattner //===--------------------------------------------------------------------===// 253464175bba1318bef7905122e9fda20cff926df78Chris Lattner 254464175bba1318bef7905122e9fda20cff926df78Chris Lattner /// getTypeInfo - Get the size and alignment of the specified complete type in 255464175bba1318bef7905122e9fda20cff926df78Chris Lattner /// bits. 256464175bba1318bef7905122e9fda20cff926df78Chris Lattner std::pair<uint64_t, unsigned> getTypeInfo(QualType T, SourceLocation L); 257464175bba1318bef7905122e9fda20cff926df78Chris Lattner 258464175bba1318bef7905122e9fda20cff926df78Chris Lattner /// getTypeSize - Return the size of the specified type, in bits. This method 259464175bba1318bef7905122e9fda20cff926df78Chris Lattner /// does not work on incomplete types. 260464175bba1318bef7905122e9fda20cff926df78Chris Lattner uint64_t getTypeSize(QualType T, SourceLocation L) { 261464175bba1318bef7905122e9fda20cff926df78Chris Lattner return getTypeInfo(T, L).first; 262464175bba1318bef7905122e9fda20cff926df78Chris Lattner } 263464175bba1318bef7905122e9fda20cff926df78Chris Lattner 264464175bba1318bef7905122e9fda20cff926df78Chris Lattner /// getTypeAlign - Return the alignment of the specified type, in bits. This 265464175bba1318bef7905122e9fda20cff926df78Chris Lattner /// method does not work on incomplete types. 266464175bba1318bef7905122e9fda20cff926df78Chris Lattner unsigned getTypeAlign(QualType T, SourceLocation L) { 267464175bba1318bef7905122e9fda20cff926df78Chris Lattner return getTypeInfo(T, L).second; 268464175bba1318bef7905122e9fda20cff926df78Chris Lattner } 269464175bba1318bef7905122e9fda20cff926df78Chris Lattner 27088a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel /// getASTRecordLayout - Get or compute information about the layout of the 271464175bba1318bef7905122e9fda20cff926df78Chris Lattner /// specified record (struct/union/class), which indicates its size and field 272464175bba1318bef7905122e9fda20cff926df78Chris Lattner /// position information. 27388a981b47c7face1b1fdaa9074256245107b9ca9Devang Patel const ASTRecordLayout &getASTRecordLayout(const RecordDecl *D, SourceLocation L); 274464175bba1318bef7905122e9fda20cff926df78Chris Lattner 275464175bba1318bef7905122e9fda20cff926df78Chris Lattner //===--------------------------------------------------------------------===// 276464175bba1318bef7905122e9fda20cff926df78Chris Lattner // Type Operators 277464175bba1318bef7905122e9fda20cff926df78Chris Lattner //===--------------------------------------------------------------------===// 278464175bba1318bef7905122e9fda20cff926df78Chris Lattner 279464175bba1318bef7905122e9fda20cff926df78Chris Lattner /// maxIntegerType - Returns the highest ranked integer type. Handles 3 280464175bba1318bef7905122e9fda20cff926df78Chris Lattner /// different type combos: unsigned/unsigned, signed/signed, signed/unsigned. 2815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static QualType maxIntegerType(QualType lhs, QualType rhs); 2825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 283fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff /// compareFloatingType - Handles 3 different combos: 284fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff /// float/float, float/complex, complex/complex. 285fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff /// If lt > rt, return 1. If lt == rt, return 0. If lt < rt, return -1. 286fb0d49669aa370b4c0993c5cee60275ef9fd6518Steve Naroff static int compareFloatingType(QualType lt, QualType rt); 2875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 288716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff /// getFloatingTypeOfSizeWithinDomain - Returns a real floating 289716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff /// point or a complex type (based on typeDomain/typeSize). 290716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff /// 'typeDomain' is a real floating point or complex type. 291716c7304ff5d27a95e1e7823acd1d09d5ec3e37fSteve Naroff /// 'typeSize' is a real floating point or complex type. 292f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff QualType getFloatingTypeOfSizeWithinDomain(QualType typeSize, 293f1448a0e4a1e868ff873a8530a61a09cb68666ccSteve Naroff QualType typeDomain) const; 294ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 295ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff //===--------------------------------------------------------------------===// 296ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff // Type Compatibility Predicates 297ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff //===--------------------------------------------------------------------===// 298ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 299ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff /// Compatibility predicates used to check assignment expressions. 300ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff bool typesAreCompatible(QualType, QualType); // C99 6.2.7p1 301ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff bool tagTypesAreCompatible(QualType, QualType); // C99 6.2.7p1 302ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff bool pointerTypesAreCompatible(QualType, QualType); // C99 6.7.5.1p2 303ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff bool referenceTypesAreCompatible(QualType, QualType); // C++ 5.17p6 304ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff bool functionTypesAreCompatible(QualType, QualType); // C99 6.7.5.3p15 305ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff bool arrayTypesAreCompatible(QualType, QualType); // C99 6.7.5.2p6 306ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff bool builtinTypesAreCompatible(QualType, QualType); 307770951b5bb6028a8d326ddb4a13cef7d4a128162Chris Lattner bool vectorTypesAreCompatible(QualType, QualType); 308ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 3094ffc54111fdc0baa45bb287f59774e06dea8caa4Fariborz Jahanian bool QualifiedInterfaceTypesAreCompatible(QualType, QualType); 310a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek bool ObjCQualifiedIdTypesAreCompatible(QualType, QualType, bool = false); 311ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff bool objcTypesAreCompatible(QualType, QualType); 312a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek bool isObjCIdType(QualType T) const { 31345ecd5daa36385b7e0b2f657357805e01f5d8cbfSteve Naroff if (!IdStructType) // ObjC isn't enabled 31445ecd5daa36385b7e0b2f657357805e01f5d8cbfSteve Naroff return false; 315ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff return T->getAsStructureType() == IdStructType; 316ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff } 317a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek bool isObjCClassType(QualType T) const { 31845ecd5daa36385b7e0b2f657357805e01f5d8cbfSteve Naroff if (!ClassStructType) // ObjC isn't enabled 31945ecd5daa36385b7e0b2f657357805e01f5d8cbfSteve Naroff return false; 3208baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return T->getAsStructureType() == ClassStructType; 3218baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson } 322a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek bool isObjCSelType(QualType T) const { 323a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(SelStructType && "isObjCSelType used before 'SEL' type is built"); 3248baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson return T->getAsStructureType() == SelStructType; 3258baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson } 3268baaca50f07d0c10bba69c8d88c1b9078c92d06dAnders Carlsson 3275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 3285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASTContext(const ASTContext&); // DO NOT IMPLEMENT 3295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void operator=(const ASTContext&); // DO NOT IMPLEMENT 3305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void InitBuiltinTypes(); 3325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void InitBuiltinType(QualType &R, BuiltinType::Kind K); 3338cc71e8d00896e758cf56ea86cfc1f62ade16478Fariborz Jahanian 3348cc71e8d00896e758cf56ea86cfc1f62ade16478Fariborz Jahanian /// helper function for Objective-C specific type checking. 3358cc71e8d00896e758cf56ea86cfc1f62ade16478Fariborz Jahanian bool interfaceTypesAreCompatible(QualType, QualType); 3367192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek 3377192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek //===--------------------------------------------------------------------===// 3387192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek // Serialization 3397192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek //===--------------------------------------------------------------------===// 340aa499b6ab30975d0cea225f71b33e7ee60b88a1fTed Kremenek 341aa499b6ab30975d0cea225f71b33e7ee60b88a1fTed Kremenekpublic: 3427192f8e9592729882a09d84d77838db26e39ebd4Ted Kremenek void Emit(llvm::Serializer& S) const; 3430f84c0059cec39fd1c73ac05bc2864dca664e7f4Ted Kremenek static ASTContext* Create(llvm::Deserializer& D); 3445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 3475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 349