ASTContext.h revision 5f016e2cb5d11daeb237544de1c5d59f20fe1a6e
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- ASTContext.h - Context to hold long-lived AST nodes ----*- C++ -*-===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 55f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file was developed by Chris Lattner and is distributed under 65f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// the University of Illinois Open Source 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/Type.h" 195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/Expr.h" 205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include <vector> 215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class TargetInfo; 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ASTContext - This class holds long-lived AST nodes (such as types and 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// decls) that can be referred to throughout the semantic analysis of a file. 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ASTContext { 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer std::vector<Type*> Types; 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSet<ComplexType> ComplexTypes; 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSet<PointerType> PointerTypes; 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSet<ReferenceType> ReferenceTypes; 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSet<ArrayType> ArrayTypes; 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSet<VectorType> VectorTypes; 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSet<FunctionTypeNoProto> FunctionTypeNoProtos; 355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::FoldingSet<FunctionTypeProto> FunctionTypeProtos; 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer TargetInfo &Target; 385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Builtin::Context BuiltinInfo; 395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Builtin Types. 415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType VoidTy; 425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType BoolTy; 435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType CharTy; 445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType SignedCharTy, ShortTy, IntTy, LongTy, LongLongTy; 455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType UnsignedCharTy, UnsignedShortTy, UnsignedIntTy, UnsignedLongTy; 465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType UnsignedLongLongTy; 475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType FloatTy, DoubleTy, LongDoubleTy; 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType FloatComplexTy, DoubleComplexTy, LongDoubleComplexTy; 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASTContext(TargetInfo &t, IdentifierTable &idents) : Target(t) { 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer InitBuiltinTypes(); 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer BuiltinInfo.InitializeBuiltins(idents, Target); 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ~ASTContext(); 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void PrintStats() const; 575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getComplexType - Return the uniqued reference to the type for a complex 595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// number with the specified element type. 605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getComplexType(QualType T); 615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getPointerType - Return the uniqued reference to the type for a pointer to 635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the specified type. 645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getPointerType(QualType T); 655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getReferenceType - Return the uniqued reference to the type for a 675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// reference to the specified type. 685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getReferenceType(QualType T); 695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArrayType - Return the unique reference to the type for an array of the 715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// specified element type. 725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getArrayType(QualType EltTy, ArrayType::ArraySizeModifier ASM, 735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned EltTypeQuals, Expr *NumElts); 745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// convertToVectorType - Return the unique reference to a vector type of 765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the specified element type and size. VectorType can be a pointer, array, 775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// function, or built-in type (i.e. _Bool, integer, or float). 785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType convertToVectorType(QualType VectorType, unsigned NumElts); 795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getFunctionTypeNoProto - Return a K&R style C function type like 'int()'. 815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getFunctionTypeNoProto(QualType ResultTy); 835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getFunctionType - Return a normal function type with a typed argument 855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// list. isVariadic indicates whether the argument list includes '...'. 865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getFunctionType(QualType ResultTy, QualType *ArgArray, 875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs, bool isVariadic); 885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getTypedefType - Return the unique reference to the type for the 905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// specified typename decl. 915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getTypedefType(TypedefDecl *Decl); 925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getTagDeclType - Return the unique reference to the type for the 945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// specified TagDecl (struct/union/class/enum) decl. 955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getTagDeclType(TagDecl *Decl); 965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getSizeType - Return the unique type for "size_t" (C99 7.17), defined 985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// in <stddef.h>. The sizeof operator requires this (C99 6.5.3.4p4). 995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getSizeType() const; 1005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getIntegerBitwidth - Return the bitwidth of the specified integer type 1025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// according to the target. 'Loc' specifies the source location that 1035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// requires evaluation of this property. 1045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getIntegerBitwidth(QualType T, SourceLocation Loc); 1055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // maxIntegerType - Returns the highest ranked integer type. Handles 3 1075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // different type combos: unsigned/unsigned, signed/signed, signed/unsigned. 1085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static QualType maxIntegerType(QualType lhs, QualType rhs); 1095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // maxFloatingType - Returns the highest ranked float type. Both input 1115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // types are required to be floats. 1125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static QualType maxFloatingType(QualType lt, QualType rt); 1135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // maxComplexType - Returns the highest ranked complex type. Handles 3 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // different type combos: complex/complex, complex/float, float/complex. 1165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType maxComplexType(QualType lt, QualType rt) const; 1175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 1195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ASTContext(const ASTContext&); // DO NOT IMPLEMENT 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void operator=(const ASTContext&); // DO NOT IMPLEMENT 1215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void InitBuiltinTypes(); 1235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void InitBuiltinType(QualType &R, BuiltinType::Kind K); 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 129