Expr.h revision e2563ca02a519c2ad6d64dfed87d6e86c5d3c072
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)//===--- Expr.h - Classes for representing expressions ----------*- C++ -*-===// 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// The LLVM Compiler Infrastructure 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This file is distributed under the University of Illinois Open Source 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// License. See LICENSE.TXT for details. 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)//===----------------------------------------------------------------------===// 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 10a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles)// This file defines the Expr interface and subclasses. 112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// 122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)//===----------------------------------------------------------------------===// 132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef LLVM_CLANG_AST_EXPR_H 15868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#define LLVM_CLANG_AST_EXPR_H 162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "clang/AST/Stmt.h" 187dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch#include "clang/AST/Type.h" 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "clang/AST/Decl.h" 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "clang/AST/DeclObjC.h" 214e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)#include "clang/Basic/IdentifierTable.h" 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "llvm/ADT/APSInt.h" 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "llvm/ADT/APFloat.h" 242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace clang { 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) class IdentifierInfo; 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) class Selector; 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) class Decl; 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) class ASTContext; 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// Expr - This represents one expression. Note that Expr's are subclasses of 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// Stmt. This allows an expression to be transparently used any place a Stmt 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// is required. 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// 35c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)class Expr : public Stmt { 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QualType TR; 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)protected: 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr(StmtClass SC, QualType T) : Stmt(SC), TR(T) {} 392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)public: 40a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) QualType getType() const { return TR; } 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void setType(QualType t) { TR = t; } 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// SourceLocation tokens are not useful in isolation - they are low level 442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// value objects created/interpreted by SourceManager. We assume AST 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// clients will have a pointer to the respective SourceManager. 46868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) virtual SourceRange getSourceRange() const = 0; 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 481e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) /// getExprLoc - Return the preferred location for the arrow when diagnosing 491e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) /// a problem with a generic expression. 5090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) virtual SourceLocation getExprLoc() const { return getLocStart(); } 5190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 52a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) /// hasLocalSideEffect - Return true if this immediate expression has side 53a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) /// effects, not counting any sub-expressions. 54a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) bool hasLocalSideEffect() const; 55a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) 56a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) /// isLvalue - C99 6.3.2.1: an lvalue is an expression with an object type or 57a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) /// incomplete type other than void. Nonarray expressions that can be lvalues: 58a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) /// - name, where name must be a variable 59a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) /// - e[i] 60a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) /// - (e), where e must be an lvalue 61a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) /// - e.name, where e must be an lvalue 62a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) /// - e->name 63a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) /// - *e, the type of e cannot be a function type 64a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) /// - string-constant 65a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) /// - reference type [C++ [expr]] 661e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) /// 671e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) enum isLvalueResult { 681e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) LV_Valid, 691e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) LV_NotObjectType, 701e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) LV_IncompleteVoidType, 711e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) LV_DuplicateVectorComponents, 721e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) LV_InvalidExpression 73a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) }; 74a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) isLvalueResult isLvalue() const; 75a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) 76a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 77a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) /// does not have an incomplete type, does not have a const-qualified type, 781e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) /// and if it is a structure or union, does not have any member (including, 79a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) /// recursively, any member or element of all contained aggregates or unions) 80a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) /// with a const-qualified type. 81a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) enum isModifiableLvalueResult { 82a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) MLV_Valid, 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MLV_NotObjectType, 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MLV_IncompleteVoidType, 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MLV_DuplicateVectorComponents, 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MLV_InvalidExpression, 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MLV_IncompleteType, 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MLV_ConstQualified, 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MLV_ArrayType 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) isModifiableLvalueResult isModifiableLvalue() const; 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool isNullPointerConstant(ASTContext &Ctx) const; 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 95b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) /// isIntegerConstantExpr - Return true if this expression is a valid integer 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// constant expression, and, if so, return its value in Result. If not a 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// valid i-c-e, return false and fill in Loc (if specified) with the location 984e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) /// of the invalid expression. 994e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 1004e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) SourceLocation *Loc = 0, 1014e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) bool isEvaluated = true) const; 1024e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const { 1034e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) llvm::APSInt X(32); 1044e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) return isIntegerConstantExpr(X, Ctx, Loc); 1054e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) } 1064e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) /// isConstantExpr - Return true if this expression is a valid constant expr. 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool isConstantExpr(ASTContext &Ctx, SourceLocation *Loc) const; 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// hasGlobalStorage - Return true if this expression has static storage 1102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// duration. This means that the address of this expression is a link-time 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// constant. 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool hasGlobalStorage() const; 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 1152a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// its subexpression. If that subexpression is also a ParenExpr, 1162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// then this method recursively returns its subexpression, and so forth. 1172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// Otherwise, the method returns the current Expr. 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr* IgnoreParens(); 1192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 1212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// or CastExprs or ImplicitCastExprs, returning their operand. 1222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Expr *IgnoreParenCasts(); 1232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const Expr* IgnoreParens() const { 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return const_cast<Expr*>(this)->IgnoreParens(); 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const Expr *IgnoreParenCasts() const { 128b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) return const_cast<Expr*>(this)->IgnoreParenCasts(); 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const Stmt *T) { 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return T->getStmtClass() >= firstExprConstant && 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) T->getStmtClass() <= lastExprConstant; 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const Expr *) { return true; } 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static inline Expr* Create(llvm::Deserializer& D, ASTContext& C) { 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return cast<Expr>(Stmt::Create(D, C)); 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)//===----------------------------------------------------------------------===// 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Primary Expressions. 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)//===----------------------------------------------------------------------===// 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// enum, etc. 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class DeclRefExpr : public Expr { 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ValueDecl *D; 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceLocation Loc; 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)public: 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DeclRefExpr(ValueDecl *d, QualType t, SourceLocation l) : 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr(DeclRefExprClass, t), D(d), Loc(l) {} 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ValueDecl *getDecl() { return D; } 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const ValueDecl *getDecl() const { return D; } 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const Stmt *T) { 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return T->getStmtClass() == DeclRefExprClass; 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const DeclRefExpr *) { return true; } 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Iterators 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_begin(); 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_end(); 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static DeclRefExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// PreDefinedExpr - [C99 6.4.2.2] - A pre-defined identifier such as __func__. 1742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class PreDefinedExpr : public Expr { 1752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)public: 1762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) enum IdentType { 1772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Func, 1785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Function, 1795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PrettyFunction 180868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) }; 1814e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) 1822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)private: 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceLocation Loc; 184868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) IdentType Type; 185868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)public: 186868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) PreDefinedExpr(SourceLocation l, QualType type, IdentType IT) 187868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) : Expr(PreDefinedExprClass, type), Loc(l), Type(IT) {} 188868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 1892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) IdentType getIdentType() const { return Type; } 1902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 1922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) static bool classof(const Stmt *T) { 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return T->getStmtClass() == PreDefinedExprClass; 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const PreDefinedExpr *) { return true; } 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Iterators 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_begin(); 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_end(); 201868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 2034e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) static PreDefinedExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 2055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class IntegerLiteral : public Expr { 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) llvm::APInt Value; 2085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceLocation Loc; 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)public: 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // or UnsignedLongLongTy 212868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) IntegerLiteral(const llvm::APInt &V, QualType type, SourceLocation l) 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : Expr(IntegerLiteralClass, type), Value(V), Loc(l) { 2144e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const llvm::APInt &getValue() const { return Value; } 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 2185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const Stmt *T) { 2202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return T->getStmtClass() == IntegerLiteralClass; 2212a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 2222a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) static bool classof(const IntegerLiteral *) { return true; } 2232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Iterators 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_begin(); 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_end(); 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static IntegerLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class CharacterLiteral : public Expr { 2335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unsigned Value; 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceLocation Loc; 2355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)public: 2365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // type should be IntTy 2372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) CharacterLiteral(unsigned value, QualType type, SourceLocation l) 2385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : Expr(CharacterLiteralClass, type), Value(value), Loc(l) { 2395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SourceLocation getLoc() const { return Loc; } 2415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2424e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 2435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) unsigned getValue() const { return Value; } 2452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const Stmt *T) { 2475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return T->getStmtClass() == CharacterLiteralClass; 2485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const CharacterLiteral *) { return true; } 2505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Iterators 2525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_begin(); 2532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual child_iterator child_end(); 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 2565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static CharacterLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 2575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 2585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class FloatingLiteral : public Expr { 2605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) llvm::APFloat Value; 2615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool IsExact : 1; 2625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceLocation Loc; 2635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)public: 2645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FloatingLiteral(const llvm::APFloat &V, bool* isexact, 2655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QualType Type, SourceLocation L) 2665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : Expr(FloatingLiteralClass, Type), Value(V), IsExact(*isexact), Loc(L) {} 2675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const llvm::APFloat &getValue() const { return Value; } 2695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool isExact() const { return IsExact; } 2712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// getValueAsDouble - This returns the value as an inaccurate double. Note 273868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) /// that this may cause loss of precision, but is useful for debugging dumps 2745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// etc. 2754e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) double getValueAsDouble() const { 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // FIXME: We need something for long double here. 2775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (cast<BuiltinType>(getType())->getKind() == BuiltinType::Float) 2785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return Value.convertToFloat(); 2795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 2805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return Value.convertToDouble(); 2815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 2845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const Stmt *T) { 2865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return T->getStmtClass() == FloatingLiteralClass; 2875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const FloatingLiteral *) { return true; } 2895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Iterators 2915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_begin(); 2925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_end(); 2935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static FloatingLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// ImaginaryLiteral - We support imaginary integer and floating point literals, 2995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 3005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// IntegerLiteral classes. Instances of this class always have a Complex type 3015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// whose element type matches the subexpression. 3025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// 3035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class ImaginaryLiteral : public Expr { 3045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr *Val; 3052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)public: 3062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) ImaginaryLiteral(Expr *val, QualType Ty) 3072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : Expr(ImaginaryLiteralClass, Ty), Val(val) {} 308ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch 309ca12bfac764ba476d6cd062bf1dde12cc64c3f40Ben Murdoch const Expr *getSubExpr() const { return Val; } 3105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr *getSubExpr() { return Val; } 3112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual SourceRange getSourceRange() const { return Val->getSourceRange(); } 3135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const Stmt *T) { 3142a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return T->getStmtClass() == ImaginaryLiteralClass; 3155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) static bool classof(const ImaginaryLiteral *) { return true; } 3175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Iterators 3195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_begin(); 3205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_end(); 3215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 3235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static ImaginaryLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 3245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 3255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// StringLiteral - This represents a string literal expression, e.g. "foo" 3275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// or L"bar" (wide strings). The actual string is returned by getStrData() 3285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// is NOT null-terminated, and the length of the string is determined by 3295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// calling getByteLength(). The C type for a string is always a 3305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// ConstantArrayType. 3312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class StringLiteral : public Expr { 33258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) const char *StrData; 33358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) unsigned ByteLength; 33458537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) bool IsWide; 3355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // if the StringLiteral was composed using token pasting, both locations 3365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // are needed. If not (the common case), firstTokLoc == lastTokLoc. 3375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // FIXME: if space becomes an issue, we should create a sub-class. 338b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) SourceLocation firstTokLoc, lastTokLoc; 3395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)public: 3405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) StringLiteral(const char *strData, unsigned byteLength, bool Wide, 3415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) QualType t, SourceLocation b, SourceLocation e); 3422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual ~StringLiteral(); 3432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const char *getStrData() const { return StrData; } 3455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unsigned getByteLength() const { return ByteLength; } 3465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool isWide() const { return IsWide; } 3475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual SourceRange getSourceRange() const { 3495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return SourceRange(firstTokLoc,lastTokLoc); 3505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 35158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) static bool classof(const Stmt *T) { 3525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return T->getStmtClass() == StringLiteralClass; 3535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) static bool classof(const StringLiteral *) { return true; } 3552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Iterators 3575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_begin(); 3585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_end(); 3595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3602a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 3612a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) static StringLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 3625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 3635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 3655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// AST node is only formed if full location information is requested. 3665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class ParenExpr : public Expr { 3675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceLocation L, R; 3685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr *Val; 3692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)public: 3705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 3715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : Expr(ParenExprClass, val->getType()), L(l), R(r), Val(val) {} 3725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const Expr *getSubExpr() const { return Val; } 3745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr *getSubExpr() { return Val; } 3755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceRange getSourceRange() const { return SourceRange(L, R); } 3765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const Stmt *T) { 3785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return T->getStmtClass() == ParenExprClass; 3795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 3805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const ParenExpr *) { return true; } 3815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Iterators 3835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_begin(); 3845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_end(); 3855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 3875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static ParenExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 3885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 389868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) 3905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// UnaryOperator - This represents the unary-expression's (except sizeof of 3925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// types), the postinc/postdec operators from postfix-expression, and various 3935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// extensions. 3945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// 3955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// Notes on various nodes: 3965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// 397868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)/// Real/Imag - These return the real/imag part of a complex operand. If 3985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// applied to a non-complex value, the former returns its operand and the 3995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// later returns zero in the type of the operand. 400c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)/// 401c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)/// __builtin_offsetof(type, a.b[10]) is represented as a unary operator whose 402c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)/// subexpression is a compound literal with the various MemberExpr and 403868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)/// ArraySubscriptExpr's applied to it. 4040f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)/// 4055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class UnaryOperator : public Expr { 4065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)public: 4075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Note that additions to this should also update the StmtVisitor class. 408868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) enum Opcode { 4095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PostInc, PostDec, // [C99 6.5.2.4] Postfix increment and decrement operators 4105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PreInc, PreDec, // [C99 6.5.3.1] Prefix increment and decrement operators. 4115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddrOf, Deref, // [C99 6.5.3.2] Address and indirection operators. 4125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Plus, Minus, // [C99 6.5.3.3] Unary arithmetic operators. 4135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Not, LNot, // [C99 6.5.3.3] Unary arithmetic operators. 4145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SizeOf, AlignOf, // [C99 6.5.3.4] Sizeof (expr, not type) operator. 4155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Real, Imag, // "__real expr"/"__imag expr" Extension. 4165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Extension, // __extension__ marker. 4174e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) OffsetOf // __builtin_offsetof 4184e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) }; 419868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)private: 4205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr *Val; 4215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Opcode Opc; 4225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceLocation Loc; 4235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)public: 4245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) UnaryOperator(Expr *input, Opcode opc, QualType type, SourceLocation l) 4265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : Expr(UnaryOperatorClass, type), Val(input), Opc(opc), Loc(l) {} 4275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Opcode getOpcode() const { return Opc; } 4295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr *getSubExpr() const { return Val; } 4305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 431a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) /// getOperatorLoc - Return the location of the operator. 4325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceLocation getOperatorLoc() const { return Loc; } 4335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4347d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) /// isPostfix - Return true if this is a postfix operation, like x++. 4357d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) static bool isPostfix(Opcode Op); 4365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool isPostfix() const { return isPostfix(Opc); } 4385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool isIncrementOp() const {return Opc==PreInc || Opc==PostInc; } 4395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool isIncrementDecrementOp() const { return Opc>=PostInc && Opc<=PreDec; } 4405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool isSizeOfAlignOfOp() const { return Opc == SizeOf || Opc == AlignOf; } 4415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool isOffsetOfOp() const { return Opc == OffsetOf; } 4421e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) static bool isArithmeticOp(Opcode Op) { return Op >= Plus && Op <= LNot; } 4431e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) 4441e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 44590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) /// corresponds to, e.g. "sizeof" or "[pre]++" 44690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) static const char *getOpcodeStr(Opcode Op); 4475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual SourceRange getSourceRange() const { 4495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (isPostfix()) 4505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return SourceRange(Val->getLocStart(), Loc); 4515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 4525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return SourceRange(Loc, Val->getLocEnd()); 4535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual SourceLocation getExprLoc() const { return Loc; } 4555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const Stmt *T) { 4575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return T->getStmtClass() == UnaryOperatorClass; 4585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 4595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const UnaryOperator *) { return true; } 4605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int64_t evaluateOffsetOf(ASTContext& C) const; 4622a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4632a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Iterators 4642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual child_iterator child_begin(); 4652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual child_iterator child_end(); 4662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 467b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 4682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) static UnaryOperator* CreateImpl(llvm::Deserializer& D, ASTContext& C); 4692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)}; 4702a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)/// SizeOfAlignOfTypeExpr - [C99 6.5.3.4] - This is only for sizeof/alignof of 4722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)/// *types*. sizeof(expr) is handled by UnaryOperator. 4732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class SizeOfAlignOfTypeExpr : public Expr { 4742a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool isSizeof; // true if sizeof, false if alignof. 4752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QualType Ty; 4762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SourceLocation OpLoc, RParenLoc; 4772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)public: 4782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SizeOfAlignOfTypeExpr(bool issizeof, QualType argType, QualType resultType, 4792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SourceLocation op, SourceLocation rp) : 4802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Expr(SizeOfAlignOfTypeExprClass, resultType), 4812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) isSizeof(issizeof), Ty(argType), OpLoc(op), RParenLoc(rp) {} 4822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool isSizeOf() const { return isSizeof; } 4842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QualType getArgumentType() const { return Ty; } 4852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SourceLocation getOperatorLoc() const { return OpLoc; } 4872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SourceRange getSourceRange() const { return SourceRange(OpLoc, RParenLoc); } 4882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) static bool classof(const Stmt *T) { 4902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return T->getStmtClass() == SizeOfAlignOfTypeExprClass; 4912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 4922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) static bool classof(const SizeOfAlignOfTypeExpr *) { return true; } 4932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 4942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Iterators 4952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual child_iterator child_begin(); 4962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual child_iterator child_end(); 497c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 498c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 499c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) static SizeOfAlignOfTypeExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 500c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)}; 501c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 5020f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles)//===----------------------------------------------------------------------===// 5032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// Postfix Operators. 5042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)//===----------------------------------------------------------------------===// 5052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 506c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 5072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class ArraySubscriptExpr : public Expr { 5082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) enum { LHS, RHS, END_EXPR=2 }; 5095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr* SubExprs[END_EXPR]; 5105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceLocation RBracketLoc; 5115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)public: 5125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 5135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceLocation rbracketloc) 5145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : Expr(ArraySubscriptExprClass, t), RBracketLoc(rbracketloc) { 5155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SubExprs[LHS] = lhs; 5165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SubExprs[RHS] = rhs; 5172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 5182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5197d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) /// An array access can be written A[4] or 4[A] (both are equivalent). 5202a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// - getBase() and getIdx() always present the normalized view: A[4]. 521b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) /// In this case getBase() returns "A" and getIdx() returns "4". 5225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// - getLHS() and getRHS() present the syntactic view. e.g. for 5235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// 4[A] getLHS() returns "4". 5245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// Note: Because vector element access is also written A[4] we must 5255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// predicate the format conversion in getBase and getIdx only on the 5265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// the type of the RHS, as it is possible for the LHS to be a vector of 5275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// integer type 5285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr *getLHS() { return SubExprs[LHS]; } 5292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const Expr *getLHS() const { return SubExprs[LHS]; } 5302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Expr *getRHS() { return SubExprs[RHS]; } 5325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const Expr *getRHS() const { return SubExprs[RHS]; } 5335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr *getBase() { 5355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (getRHS()->getType()->isIntegerType()) ? getLHS() : getRHS(); 5362a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 5375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const Expr *getBase() const { 5392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return (getRHS()->getType()->isIntegerType()) ? getLHS() : getRHS(); 5405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr *getIdx() { 54358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) return (getRHS()->getType()->isIntegerType()) ? getRHS() : getLHS(); 5445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const Expr *getIdx() const { 5475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (getRHS()->getType()->isIntegerType()) ? getRHS() : getLHS(); 5485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceRange getSourceRange() const { 5525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return SourceRange(getLHS()->getLocStart(), RBracketLoc); 553a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) } 5545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual SourceLocation getExprLoc() const { return RBracketLoc; } 5555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5567d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) static bool classof(const Stmt *T) { 5577d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) return T->getStmtClass() == ArraySubscriptExprClass; 5585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const ArraySubscriptExpr *) { return true; } 5605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Iterators 5625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_begin(); 5635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_end(); 5645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 5665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static ArraySubscriptExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 5675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 5685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// CallExpr - [C99 6.5.2.2] Function Calls. 5715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// 5725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class CallExpr : public Expr { 5735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enum { FN=0, ARGS_START=1 }; 5745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr **SubExprs; 5755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unsigned NumArgs; 5765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceLocation RParenLoc; 5775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 578868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) // This version of the ctor is for deserialization. 5795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CallExpr(Expr** subexprs, unsigned numargs, QualType t, 5805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceLocation rparenloc) 5815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : Expr(CallExprClass,t), SubExprs(subexprs), 5825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NumArgs(numargs), RParenLoc(rparenloc) {} 5835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 584c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)public: 585c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) CallExpr(Expr *fn, Expr **args, unsigned numargs, QualType t, 586c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) SourceLocation rparenloc); 587c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ~CallExpr() { 5880f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) delete [] SubExprs; 5895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const Expr *getCallee() const { return SubExprs[FN]; } 592868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) Expr *getCallee() { return SubExprs[FN]; } 5935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void setCallee(Expr *F) { SubExprs[FN] = F; } 5945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// getNumArgs - Return the number of actual arguments to this call. 5962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// 5972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) unsigned getNumArgs() const { return NumArgs; } 5982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5994e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) /// getArg - Return the specified argument. 6004e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) Expr *getArg(unsigned Arg) { 6014e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) assert(Arg < NumArgs && "Arg access out of range!"); 6024e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) return SubExprs[Arg+ARGS_START]; 6034e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) } 6042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const Expr *getArg(unsigned Arg) const { 6055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) assert(Arg < NumArgs && "Arg access out of range!"); 6065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return SubExprs[Arg+ARGS_START]; 6075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// setArg - Set the specified argument. 6095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void setArg(unsigned Arg, Expr *ArgExpr) { 6105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) assert(Arg < NumArgs && "Arg access out of range!"); 6115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SubExprs[Arg+ARGS_START] = ArgExpr; 6125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// setNumArgs - This changes the number of arguments present in this call. 6155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// Any orphaned expressions are deleted by this, and any new operands are set 6165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// to null. 6173551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) void setNumArgs(unsigned NumArgs); 6183551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 6193551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) typedef Expr **arg_iterator; 6203551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) typedef Expr * const *arg_const_iterator; 6213551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) arg_iterator arg_begin() { return SubExprs+ARGS_START; } 6223551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) arg_iterator arg_end() { return SubExprs+ARGS_START+getNumArgs(); } 6233551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) arg_const_iterator arg_begin() const { return SubExprs+ARGS_START; } 6245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) arg_const_iterator arg_end() const { return SubExprs+ARGS_START+getNumArgs(); } 6252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 6265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// getNumCommas - Return the number of commas that must have been present in 6285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// this function call. 6295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 6305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool isBuiltinClassifyType(llvm::APSInt &Result) const; 6325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// isBuiltinConstantExpr - Return true if this built-in call is constant. 6345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool isBuiltinConstantExpr() const; 6355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceLocation getRParenLoc() const { return RParenLoc; } 6375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceRange getSourceRange() const { 6385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return SourceRange(getCallee()->getLocStart(), RParenLoc); 639a93a17c8d99d686bd4a1511e5504e5e6cc9fcadfTorne (Richard Coles) } 6405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const Stmt *T) { 6427d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) return T->getStmtClass() == CallExprClass; 6437d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) } 6445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const CallExpr *) { return true; } 6455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Iterators 6475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_begin(); 6485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_end(); 6495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 6515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static CallExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 6525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 6535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. 6555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// 6565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class MemberExpr : public Expr { 6575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr *Base; 6585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FieldDecl *MemberDecl; 6595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceLocation MemberLoc; 6605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool IsArrow; // True if this is "X->F", false if this is "X.F". 6615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)public: 6625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MemberExpr(Expr *base, bool isarrow, FieldDecl *memberdecl, SourceLocation l, 663b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) QualType ty) 6645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : Expr(MemberExprClass, ty), 6655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Base(base), MemberDecl(memberdecl), MemberLoc(l), IsArrow(isarrow) {} 6665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr *getBase() const { return Base; } 6685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FieldDecl *getMemberDecl() const { return MemberDecl; } 6695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool isArrow() const { return IsArrow; } 6705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6712a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual SourceRange getSourceRange() const { 6722a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return SourceRange(getBase()->getLocStart(), MemberLoc); 6732a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 6745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual SourceLocation getExprLoc() const { return MemberLoc; } 6755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const Stmt *T) { 6772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return T->getStmtClass() == MemberExprClass; 6782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 6795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const MemberExpr *) { return true; } 6805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Iterators 6825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_begin(); 6835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_end(); 6845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 6865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static MemberExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 6875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 6885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// OCUVectorElementExpr - This represents access to specific elements of a 6905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// vector, and may occur on the left hand side or right hand side. For example 6915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// the following is legal: "V.xy = V.zw" if V is a 4 element ocu vector. 6925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// 6935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class OCUVectorElementExpr : public Expr { 6945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr *Base; 6955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IdentifierInfo &Accessor; 6965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceLocation AccessorLoc; 6975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)public: 6985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enum ElementType { 6995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Point, // xywz 7005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Color, // rgba 7015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Texture // stpq 7025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 7032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) OCUVectorElementExpr(QualType ty, Expr *base, IdentifierInfo &accessor, 7045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceLocation loc) 7055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : Expr(OCUVectorElementExprClass, ty), 7062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Base(base), Accessor(accessor), AccessorLoc(loc) {} 7072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 7082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const Expr *getBase() const { return Base; } 7092a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Expr *getBase() { return Base; } 7105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 711 IdentifierInfo &getAccessor() const { return Accessor; } 712 713 /// getNumElements - Get the number of components being selected. 714 unsigned getNumElements() const; 715 716 /// getElementType - Determine whether the components of this access are 717 /// "point" "color" or "texture" elements. 718 ElementType getElementType() const; 719 720 /// containsDuplicateElements - Return true if any element access is 721 /// repeated. 722 bool containsDuplicateElements() const; 723 724 /// getEncodedElementAccess - Encode the elements accessed into a bit vector. 725 /// The encoding currently uses 2-bit bitfields, but clients should use the 726 /// accessors below to access them. 727 /// 728 unsigned getEncodedElementAccess() const; 729 730 /// getAccessedFieldNo - Given an encoded value and a result number, return 731 /// the input field number being accessed. 732 static unsigned getAccessedFieldNo(unsigned Idx, unsigned EncodedVal) { 733 return (EncodedVal >> (Idx*2)) & 3; 734 } 735 736 virtual SourceRange getSourceRange() const { 737 return SourceRange(getBase()->getLocStart(), AccessorLoc); 738 } 739 static bool classof(const Stmt *T) { 740 return T->getStmtClass() == OCUVectorElementExprClass; 741 } 742 static bool classof(const OCUVectorElementExpr *) { return true; } 743 744 // Iterators 745 virtual child_iterator child_begin(); 746 virtual child_iterator child_end(); 747}; 748 749/// CompoundLiteralExpr - [C99 6.5.2.5] 750/// 751class CompoundLiteralExpr : public Expr { 752 /// LParenLoc - If non-null, this is the location of the left paren in a 753 /// compound literal like "(int){4}". This can be null if this is a 754 /// synthesized compound expression. 755 SourceLocation LParenLoc; 756 Expr *Init; 757 bool FileScope; 758public: 759 CompoundLiteralExpr(SourceLocation lparenloc, QualType ty, Expr *init, bool fileScope) : 760 Expr(CompoundLiteralExprClass, ty), LParenLoc(lparenloc), Init(init), FileScope(fileScope) {} 761 762 const Expr *getInitializer() const { return Init; } 763 Expr *getInitializer() { return Init; } 764 765 bool isFileScope() const { return FileScope; } 766 767 SourceLocation getLParenLoc() const { return LParenLoc; } 768 769 virtual SourceRange getSourceRange() const { 770 // FIXME: Init should never be null. 771 if (!Init) 772 return SourceRange(); 773 if (LParenLoc.isInvalid()) 774 return Init->getSourceRange(); 775 return SourceRange(LParenLoc, Init->getLocEnd()); 776 } 777 778 static bool classof(const Stmt *T) { 779 return T->getStmtClass() == CompoundLiteralExprClass; 780 } 781 static bool classof(const CompoundLiteralExpr *) { return true; } 782 783 // Iterators 784 virtual child_iterator child_begin(); 785 virtual child_iterator child_end(); 786 787 virtual void EmitImpl(llvm::Serializer& S) const; 788 static CompoundLiteralExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 789}; 790 791/// ImplicitCastExpr - Allows us to explicitly represent implicit type 792/// conversions. For example: converting T[]->T*, void f()->void (*f)(), 793/// float->double, short->int, etc. 794/// 795class ImplicitCastExpr : public Expr { 796 Expr *Op; 797public: 798 ImplicitCastExpr(QualType ty, Expr *op) : 799 Expr(ImplicitCastExprClass, ty), Op(op) {} 800 801 Expr *getSubExpr() { return Op; } 802 const Expr *getSubExpr() const { return Op; } 803 804 virtual SourceRange getSourceRange() const { return Op->getSourceRange(); } 805 806 static bool classof(const Stmt *T) { 807 return T->getStmtClass() == ImplicitCastExprClass; 808 } 809 static bool classof(const ImplicitCastExpr *) { return true; } 810 811 // Iterators 812 virtual child_iterator child_begin(); 813 virtual child_iterator child_end(); 814 815 virtual void EmitImpl(llvm::Serializer& S) const; 816 static ImplicitCastExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 817}; 818 819/// CastExpr - [C99 6.5.4] Cast Operators. 820/// 821class CastExpr : public Expr { 822 Expr *Op; 823 SourceLocation Loc; // the location of the left paren 824public: 825 CastExpr(QualType ty, Expr *op, SourceLocation l) : 826 Expr(CastExprClass, ty), Op(op), Loc(l) {} 827 828 SourceLocation getLParenLoc() const { return Loc; } 829 830 Expr *getSubExpr() const { return Op; } 831 832 virtual SourceRange getSourceRange() const { 833 return SourceRange(Loc, getSubExpr()->getSourceRange().getEnd()); 834 } 835 static bool classof(const Stmt *T) { 836 return T->getStmtClass() == CastExprClass; 837 } 838 static bool classof(const CastExpr *) { return true; } 839 840 // Iterators 841 virtual child_iterator child_begin(); 842 virtual child_iterator child_end(); 843 844 virtual void EmitImpl(llvm::Serializer& S) const; 845 static CastExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 846}; 847 848class BinaryOperator : public Expr { 849public: 850 enum Opcode { 851 // Operators listed in order of precedence. 852 // Note that additions to this should also update the StmtVisitor class. 853 Mul, Div, Rem, // [C99 6.5.5] Multiplicative operators. 854 Add, Sub, // [C99 6.5.6] Additive operators. 855 Shl, Shr, // [C99 6.5.7] Bitwise shift operators. 856 LT, GT, LE, GE, // [C99 6.5.8] Relational operators. 857 EQ, NE, // [C99 6.5.9] Equality operators. 858 And, // [C99 6.5.10] Bitwise AND operator. 859 Xor, // [C99 6.5.11] Bitwise XOR operator. 860 Or, // [C99 6.5.12] Bitwise OR operator. 861 LAnd, // [C99 6.5.13] Logical AND operator. 862 LOr, // [C99 6.5.14] Logical OR operator. 863 Assign, MulAssign,// [C99 6.5.16] Assignment operators. 864 DivAssign, RemAssign, 865 AddAssign, SubAssign, 866 ShlAssign, ShrAssign, 867 AndAssign, XorAssign, 868 OrAssign, 869 Comma // [C99 6.5.17] Comma operator. 870 }; 871private: 872 enum { LHS, RHS, END_EXPR }; 873 Expr* SubExprs[END_EXPR]; 874 Opcode Opc; 875 SourceLocation OpLoc; 876public: 877 878 BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 879 SourceLocation opLoc) 880 : Expr(BinaryOperatorClass, ResTy), Opc(opc), OpLoc(opLoc) { 881 SubExprs[LHS] = lhs; 882 SubExprs[RHS] = rhs; 883 assert(!isCompoundAssignmentOp() && 884 "Use ArithAssignBinaryOperator for compound assignments"); 885 } 886 887 SourceLocation getOperatorLoc() const { return OpLoc; } 888 Opcode getOpcode() const { return Opc; } 889 Expr *getLHS() const { return SubExprs[LHS]; } 890 Expr *getRHS() const { return SubExprs[RHS]; } 891 virtual SourceRange getSourceRange() const { 892 return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 893 } 894 895 /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 896 /// corresponds to, e.g. "<<=". 897 static const char *getOpcodeStr(Opcode Op); 898 899 /// predicates to categorize the respective opcodes. 900 bool isMultiplicativeOp() const { return Opc >= Mul && Opc <= Rem; } 901 bool isAdditiveOp() const { return Opc == Add || Opc == Sub; } 902 bool isShiftOp() const { return Opc == Shl || Opc == Shr; } 903 bool isBitwiseOp() const { return Opc >= And && Opc <= Or; } 904 bool isRelationalOp() const { return Opc >= LT && Opc <= GE; } 905 bool isEqualityOp() const { return Opc == EQ || Opc == NE; } 906 bool isLogicalOp() const { return Opc == LAnd || Opc == LOr; } 907 bool isAssignmentOp() const { return Opc >= Assign && Opc <= OrAssign; } 908 bool isCompoundAssignmentOp() const { return Opc > Assign && Opc <= OrAssign;} 909 bool isShiftAssignOp() const { return Opc == ShlAssign || Opc == ShrAssign; } 910 911 static bool classof(const Stmt *S) { 912 return S->getStmtClass() == BinaryOperatorClass || 913 S->getStmtClass() == CompoundAssignOperatorClass; 914 } 915 static bool classof(const BinaryOperator *) { return true; } 916 917 // Iterators 918 virtual child_iterator child_begin(); 919 virtual child_iterator child_end(); 920 921 virtual void EmitImpl(llvm::Serializer& S) const; 922 static BinaryOperator* CreateImpl(llvm::Deserializer& D, ASTContext& C); 923 924protected: 925 BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 926 SourceLocation oploc, bool dead) 927 : Expr(CompoundAssignOperatorClass, ResTy), Opc(opc), OpLoc(oploc) { 928 SubExprs[LHS] = lhs; 929 SubExprs[RHS] = rhs; 930 } 931}; 932 933/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 934/// track of the type the operation is performed in. Due to the semantics of 935/// these operators, the operands are promoted, the aritmetic performed, an 936/// implicit conversion back to the result type done, then the assignment takes 937/// place. This captures the intermediate type which the computation is done 938/// in. 939class CompoundAssignOperator : public BinaryOperator { 940 QualType ComputationType; 941public: 942 CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, 943 QualType ResType, QualType CompType, 944 SourceLocation OpLoc) 945 : BinaryOperator(lhs, rhs, opc, ResType, OpLoc, true), 946 ComputationType(CompType) { 947 assert(isCompoundAssignmentOp() && 948 "Only should be used for compound assignments"); 949 } 950 951 QualType getComputationType() const { return ComputationType; } 952 953 static bool classof(const CompoundAssignOperator *) { return true; } 954 static bool classof(const Stmt *S) { 955 return S->getStmtClass() == CompoundAssignOperatorClass; 956 } 957 958 virtual void EmitImpl(llvm::Serializer& S) const; 959 static CompoundAssignOperator* CreateImpl(llvm::Deserializer& D, 960 ASTContext& C); 961}; 962 963/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 964/// GNU "missing LHS" extension is in use. 965/// 966class ConditionalOperator : public Expr { 967 enum { COND, LHS, RHS, END_EXPR }; 968 Expr* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 969public: 970 ConditionalOperator(Expr *cond, Expr *lhs, Expr *rhs, QualType t) 971 : Expr(ConditionalOperatorClass, t) { 972 SubExprs[COND] = cond; 973 SubExprs[LHS] = lhs; 974 SubExprs[RHS] = rhs; 975 } 976 977 // getCond - Return the expression representing the condition for 978 // the ?: operator. 979 Expr *getCond() const { return SubExprs[COND]; } 980 981 // getTrueExpr - Return the subexpression representing the value of the ?: 982 // expression if the condition evaluates to true. In most cases this value 983 // will be the same as getLHS() except a GCC extension allows the left 984 // subexpression to be omitted, and instead of the condition be returned. 985 // e.g: x ?: y is shorthand for x ? x : y, except that the expression "x" 986 // is only evaluated once. 987 Expr *getTrueExpr() const { 988 return SubExprs[LHS] ? SubExprs[COND] : SubExprs[LHS]; 989 } 990 991 // getTrueExpr - Return the subexpression representing the value of the ?: 992 // expression if the condition evaluates to false. This is the same as getRHS. 993 Expr *getFalseExpr() const { return SubExprs[RHS]; } 994 995 Expr *getLHS() const { return SubExprs[LHS]; } 996 Expr *getRHS() const { return SubExprs[RHS]; } 997 998 virtual SourceRange getSourceRange() const { 999 return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 1000 } 1001 static bool classof(const Stmt *T) { 1002 return T->getStmtClass() == ConditionalOperatorClass; 1003 } 1004 static bool classof(const ConditionalOperator *) { return true; } 1005 1006 // Iterators 1007 virtual child_iterator child_begin(); 1008 virtual child_iterator child_end(); 1009 1010 virtual void EmitImpl(llvm::Serializer& S) const; 1011 static ConditionalOperator* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1012}; 1013 1014/// AddrLabelExpr - The GNU address of label extension, representing &&label. 1015class AddrLabelExpr : public Expr { 1016 SourceLocation AmpAmpLoc, LabelLoc; 1017 LabelStmt *Label; 1018public: 1019 AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 1020 QualType t) 1021 : Expr(AddrLabelExprClass, t), AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 1022 1023 virtual SourceRange getSourceRange() const { 1024 return SourceRange(AmpAmpLoc, LabelLoc); 1025 } 1026 1027 LabelStmt *getLabel() const { return Label; } 1028 1029 static bool classof(const Stmt *T) { 1030 return T->getStmtClass() == AddrLabelExprClass; 1031 } 1032 static bool classof(const AddrLabelExpr *) { return true; } 1033 1034 // Iterators 1035 virtual child_iterator child_begin(); 1036 virtual child_iterator child_end(); 1037 1038 virtual void EmitImpl(llvm::Serializer& S) const; 1039 static AddrLabelExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1040}; 1041 1042/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 1043/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 1044/// takes the value of the last subexpression. 1045class StmtExpr : public Expr { 1046 CompoundStmt *SubStmt; 1047 SourceLocation LParenLoc, RParenLoc; 1048public: 1049 StmtExpr(CompoundStmt *substmt, QualType T, 1050 SourceLocation lp, SourceLocation rp) : 1051 Expr(StmtExprClass, T), SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 1052 1053 CompoundStmt *getSubStmt() { return SubStmt; } 1054 const CompoundStmt *getSubStmt() const { return SubStmt; } 1055 1056 virtual SourceRange getSourceRange() const { 1057 return SourceRange(LParenLoc, RParenLoc); 1058 } 1059 1060 static bool classof(const Stmt *T) { 1061 return T->getStmtClass() == StmtExprClass; 1062 } 1063 static bool classof(const StmtExpr *) { return true; } 1064 1065 // Iterators 1066 virtual child_iterator child_begin(); 1067 virtual child_iterator child_end(); 1068 1069 virtual void EmitImpl(llvm::Serializer& S) const; 1070 static StmtExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1071}; 1072 1073/// TypesCompatibleExpr - GNU builtin-in function __builtin_type_compatible_p. 1074/// This AST node represents a function that returns 1 if two *types* (not 1075/// expressions) are compatible. The result of this built-in function can be 1076/// used in integer constant expressions. 1077class TypesCompatibleExpr : public Expr { 1078 QualType Type1; 1079 QualType Type2; 1080 SourceLocation BuiltinLoc, RParenLoc; 1081public: 1082 TypesCompatibleExpr(QualType ReturnType, SourceLocation BLoc, 1083 QualType t1, QualType t2, SourceLocation RP) : 1084 Expr(TypesCompatibleExprClass, ReturnType), Type1(t1), Type2(t2), 1085 BuiltinLoc(BLoc), RParenLoc(RP) {} 1086 1087 QualType getArgType1() const { return Type1; } 1088 QualType getArgType2() const { return Type2; } 1089 1090 virtual SourceRange getSourceRange() const { 1091 return SourceRange(BuiltinLoc, RParenLoc); 1092 } 1093 static bool classof(const Stmt *T) { 1094 return T->getStmtClass() == TypesCompatibleExprClass; 1095 } 1096 static bool classof(const TypesCompatibleExpr *) { return true; } 1097 1098 // Iterators 1099 virtual child_iterator child_begin(); 1100 virtual child_iterator child_end(); 1101}; 1102 1103/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 1104/// This AST node is similar to the conditional operator (?:) in C, with 1105/// the following exceptions: 1106/// - the test expression much be a constant expression. 1107/// - the expression returned has it's type unaltered by promotion rules. 1108/// - does not evaluate the expression that was not chosen. 1109class ChooseExpr : public Expr { 1110 enum { COND, LHS, RHS, END_EXPR }; 1111 Expr* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 1112 SourceLocation BuiltinLoc, RParenLoc; 1113public: 1114 ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, QualType t, 1115 SourceLocation RP) 1116 : Expr(ChooseExprClass, t), 1117 BuiltinLoc(BLoc), RParenLoc(RP) { 1118 SubExprs[COND] = cond; 1119 SubExprs[LHS] = lhs; 1120 SubExprs[RHS] = rhs; 1121 } 1122 1123 /// isConditionTrue - Return true if the condition is true. This is always 1124 /// statically knowable for a well-formed choosexpr. 1125 bool isConditionTrue(ASTContext &C) const; 1126 1127 Expr *getCond() const { return SubExprs[COND]; } 1128 Expr *getLHS() const { return SubExprs[LHS]; } 1129 Expr *getRHS() const { return SubExprs[RHS]; } 1130 1131 virtual SourceRange getSourceRange() const { 1132 return SourceRange(BuiltinLoc, RParenLoc); 1133 } 1134 static bool classof(const Stmt *T) { 1135 return T->getStmtClass() == ChooseExprClass; 1136 } 1137 static bool classof(const ChooseExpr *) { return true; } 1138 1139 // Iterators 1140 virtual child_iterator child_begin(); 1141 virtual child_iterator child_end(); 1142}; 1143 1144/// OverloadExpr - Clang builtin function __builtin_overload. 1145/// This AST node provides a way to overload functions in C. 1146/// 1147/// The first argument is required to be a constant expression, for the number 1148/// of arguments passed to each candidate function. 1149/// 1150/// The next N arguments, where N is the value of the constant expression, 1151/// are the values to be passed as arguments. 1152/// 1153/// The rest of the arguments are values of pointer to function type, which 1154/// are the candidate functions for overloading. 1155/// 1156/// The result is a equivalent to a CallExpr taking N arguments to the 1157/// candidate function whose parameter types match the types of the N arguments. 1158/// 1159/// example: float Z = __builtin_overload(2, X, Y, modf, mod, modl); 1160/// If X and Y are long doubles, Z will assigned the result of modl(X, Y); 1161/// If X and Y are floats, Z will be assigned the result of modf(X, Y); 1162class OverloadExpr : public Expr { 1163 // SubExprs - the list of values passed to the __builtin_overload function. 1164 // SubExpr[0] is a constant expression 1165 // SubExpr[1-N] are the parameters to pass to the matching function call 1166 // SubExpr[N-...] are the candidate functions, of type pointer to function. 1167 Expr **SubExprs; 1168 1169 // NumExprs - the size of the SubExprs array 1170 unsigned NumExprs; 1171 1172 // The index of the matching candidate function 1173 unsigned FnIndex; 1174 1175 SourceLocation BuiltinLoc; 1176 SourceLocation RParenLoc; 1177public: 1178 OverloadExpr(Expr **args, unsigned nexprs, unsigned idx, QualType t, 1179 SourceLocation bloc, SourceLocation rploc) 1180 : Expr(OverloadExprClass, t), NumExprs(nexprs), FnIndex(idx), 1181 BuiltinLoc(bloc), RParenLoc(rploc) { 1182 SubExprs = new Expr*[nexprs]; 1183 for (unsigned i = 0; i != nexprs; ++i) 1184 SubExprs[i] = args[i]; 1185 } 1186 ~OverloadExpr() { 1187 delete [] SubExprs; 1188 } 1189 1190 /// arg_begin - Return a pointer to the list of arguments that will be passed 1191 /// to the matching candidate function, skipping over the initial constant 1192 /// expression. 1193 typedef Expr * const *arg_const_iterator; 1194 arg_const_iterator arg_begin() const { return SubExprs+1; } 1195 1196 /// getNumArgs - Return the number of arguments to pass to the candidate 1197 /// functions. 1198 unsigned getNumArgs(ASTContext &Ctx) const { 1199 llvm::APSInt constEval(32); 1200 (void) SubExprs[0]->isIntegerConstantExpr(constEval, Ctx); 1201 return constEval.getZExtValue(); 1202 } 1203 1204 /// getNumSubExprs - Return the size of the SubExprs array. This includes the 1205 /// constant expression, the actual arguments passed in, and the function 1206 /// pointers. 1207 unsigned getNumSubExprs() const { return NumExprs; } 1208 1209 /// getExpr - Return the Expr at the specified index. 1210 Expr *getExpr(unsigned Index) { 1211 assert((Index < NumExprs) && "Arg access out of range!"); 1212 return SubExprs[Index]; 1213 } 1214 1215 /// getFn - Return the matching candidate function for this OverloadExpr. 1216 Expr *getFn() const { return SubExprs[FnIndex]; } 1217 1218 virtual SourceRange getSourceRange() const { 1219 return SourceRange(BuiltinLoc, RParenLoc); 1220 } 1221 static bool classof(const Stmt *T) { 1222 return T->getStmtClass() == OverloadExprClass; 1223 } 1224 static bool classof(const OverloadExpr *) { return true; } 1225 1226 // Iterators 1227 virtual child_iterator child_begin(); 1228 virtual child_iterator child_end(); 1229}; 1230 1231/// VAArgExpr, used for the builtin function __builtin_va_start. 1232class VAArgExpr : public Expr { 1233 Expr *Val; 1234 SourceLocation BuiltinLoc, RParenLoc; 1235public: 1236 VAArgExpr(SourceLocation BLoc, Expr* e, QualType t, SourceLocation RPLoc) 1237 : Expr(VAArgExprClass, t), 1238 Val(e), 1239 BuiltinLoc(BLoc), 1240 RParenLoc(RPLoc) { } 1241 1242 const Expr *getSubExpr() const { return Val; } 1243 Expr *getSubExpr() { return Val; } 1244 virtual SourceRange getSourceRange() const { 1245 return SourceRange(BuiltinLoc, RParenLoc); 1246 } 1247 static bool classof(const Stmt *T) { 1248 return T->getStmtClass() == VAArgExprClass; 1249 } 1250 static bool classof(const VAArgExpr *) { return true; } 1251 1252 // Iterators 1253 virtual child_iterator child_begin(); 1254 virtual child_iterator child_end(); 1255}; 1256 1257/// InitListExpr - used for struct and array initializers, such as: 1258/// struct foo x = { 1, { 2, 3 } }; 1259/// 1260/// Because C is somewhat loose with braces, the AST does not necessarily 1261/// directly model the C source. Instead, the semantic analyzer aims to make 1262/// the InitListExprs match up with the type of the decl being initialized. We 1263/// have the following exceptions: 1264/// 1265/// 1. Elements at the end of the list may be dropped from the initializer. 1266/// These elements are defined to be initialized to zero. For example: 1267/// int x[20] = { 1 }; 1268/// 2. Initializers may have excess initializers which are to be ignored by the 1269/// compiler. For example: 1270/// int x[1] = { 1, 2 }; 1271/// 3. Redundant InitListExprs may be present around scalar elements. These 1272/// always have a single element whose type is the same as the InitListExpr. 1273/// this can only happen for Type::isScalarType() types. 1274/// int x = { 1 }; int y[2] = { {1}, {2} }; 1275/// 1276class InitListExpr : public Expr { 1277 Expr **InitExprs; 1278 unsigned NumInits; 1279 SourceLocation LBraceLoc, RBraceLoc; 1280public: 1281 InitListExpr(SourceLocation lbraceloc, Expr **initexprs, unsigned numinits, 1282 SourceLocation rbraceloc); 1283 ~InitListExpr() { 1284 delete [] InitExprs; 1285 } 1286 1287 unsigned getNumInits() const { return NumInits; } 1288 1289 const Expr* getInit(unsigned Init) const { 1290 assert(Init < NumInits && "Initializer access out of range!"); 1291 return InitExprs[Init]; 1292 } 1293 1294 Expr* getInit(unsigned Init) { 1295 assert(Init < NumInits && "Initializer access out of range!"); 1296 return InitExprs[Init]; 1297 } 1298 1299 void setInit(unsigned Init, Expr *expr) { 1300 assert(Init < NumInits && "Initializer access out of range!"); 1301 InitExprs[Init] = expr; 1302 } 1303 1304 virtual SourceRange getSourceRange() const { 1305 return SourceRange(LBraceLoc, RBraceLoc); 1306 } 1307 static bool classof(const Stmt *T) { 1308 return T->getStmtClass() == InitListExprClass; 1309 } 1310 static bool classof(const InitListExpr *) { return true; } 1311 1312 // Iterators 1313 virtual child_iterator child_begin(); 1314 virtual child_iterator child_end(); 1315 1316 virtual void EmitImpl(llvm::Serializer& S) const; 1317 static InitListExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1318 1319private: 1320 // Used by serializer. 1321 InitListExpr() : Expr(InitListExprClass, QualType()), 1322 InitExprs(NULL), NumInits(0) {} 1323}; 1324 1325/// ObjCStringLiteral, used for Objective-C string literals 1326/// i.e. @"foo". 1327class ObjCStringLiteral : public Expr { 1328 StringLiteral *String; 1329 SourceLocation AtLoc; 1330public: 1331 ObjCStringLiteral(StringLiteral *SL, QualType T, SourceLocation L) 1332 : Expr(ObjCStringLiteralClass, T), String(SL), AtLoc(L) {} 1333 1334 StringLiteral* getString() { return String; } 1335 1336 const StringLiteral* getString() const { return String; } 1337 1338 SourceLocation getAtLoc() const { return AtLoc; } 1339 1340 virtual SourceRange getSourceRange() const { 1341 return SourceRange(AtLoc, String->getLocEnd()); 1342 } 1343 1344 static bool classof(const Stmt *T) { 1345 return T->getStmtClass() == ObjCStringLiteralClass; 1346 } 1347 static bool classof(const ObjCStringLiteral *) { return true; } 1348 1349 // Iterators 1350 virtual child_iterator child_begin(); 1351 virtual child_iterator child_end(); 1352 1353 virtual void EmitImpl(llvm::Serializer& S) const; 1354 static ObjCStringLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1355}; 1356 1357/// ObjCEncodeExpr, used for @encode in Objective-C. 1358class ObjCEncodeExpr : public Expr { 1359 QualType EncType; 1360 SourceLocation AtLoc, RParenLoc; 1361public: 1362 ObjCEncodeExpr(QualType T, QualType ET, 1363 SourceLocation at, SourceLocation rp) 1364 : Expr(ObjCEncodeExprClass, T), EncType(ET), AtLoc(at), RParenLoc(rp) {} 1365 1366 SourceLocation getAtLoc() const { return AtLoc; } 1367 SourceLocation getRParenLoc() const { return RParenLoc; } 1368 1369 SourceRange getSourceRange() const { return SourceRange(AtLoc, RParenLoc); } 1370 1371 QualType getEncodedType() const { return EncType; } 1372 1373 static bool classof(const Stmt *T) { 1374 return T->getStmtClass() == ObjCEncodeExprClass; 1375 } 1376 static bool classof(const ObjCEncodeExpr *) { return true; } 1377 1378 // Iterators 1379 virtual child_iterator child_begin(); 1380 virtual child_iterator child_end(); 1381 1382 virtual void EmitImpl(llvm::Serializer& S) const; 1383 static ObjCEncodeExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1384}; 1385 1386/// ObjCSelectorExpr used for @selector in Objective-C. 1387class ObjCSelectorExpr : public Expr { 1388 Selector SelName; 1389 SourceLocation AtLoc, RParenLoc; 1390public: 1391 ObjCSelectorExpr(QualType T, Selector selInfo, 1392 SourceLocation at, SourceLocation rp) 1393 : Expr(ObjCSelectorExprClass, T), SelName(selInfo), 1394 AtLoc(at), RParenLoc(rp) {} 1395 1396 const Selector &getSelector() const { return SelName; } 1397 Selector &getSelector() { return SelName; } 1398 1399 SourceLocation getAtLoc() const { return AtLoc; } 1400 SourceLocation getRParenLoc() const { return RParenLoc; } 1401 SourceRange getSourceRange() const { return SourceRange(AtLoc, RParenLoc); } 1402 1403 /// getNumArgs - Return the number of actual arguments to this call. 1404 unsigned getNumArgs() const { return SelName.getNumArgs(); } 1405 1406 static bool classof(const Stmt *T) { 1407 return T->getStmtClass() == ObjCSelectorExprClass; 1408 } 1409 static bool classof(const ObjCSelectorExpr *) { return true; } 1410 1411 // Iterators 1412 virtual child_iterator child_begin(); 1413 virtual child_iterator child_end(); 1414 1415 virtual void EmitImpl(llvm::Serializer& S) const; 1416 static ObjCSelectorExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1417}; 1418 1419/// ObjCProtocolExpr used for protocol in Objective-C. 1420class ObjCProtocolExpr : public Expr { 1421 ObjCProtocolDecl *Protocol; 1422 SourceLocation AtLoc, RParenLoc; 1423public: 1424 ObjCProtocolExpr(QualType T, ObjCProtocolDecl *protocol, 1425 SourceLocation at, SourceLocation rp) 1426 : Expr(ObjCProtocolExprClass, T), Protocol(protocol), 1427 AtLoc(at), RParenLoc(rp) {} 1428 1429 ObjCProtocolDecl *getProtocol() const { return Protocol; } 1430 1431 SourceLocation getAtLoc() const { return AtLoc; } 1432 SourceLocation getRParenLoc() const { return RParenLoc; } 1433 SourceRange getSourceRange() const { return SourceRange(AtLoc, RParenLoc); } 1434 1435 static bool classof(const Stmt *T) { 1436 return T->getStmtClass() == ObjCProtocolExprClass; 1437 } 1438 static bool classof(const ObjCProtocolExpr *) { return true; } 1439 1440 // Iterators 1441 virtual child_iterator child_begin(); 1442 virtual child_iterator child_end(); 1443}; 1444 1445/// ObjCIvarRefExpr - A reference to an ObjC instance variable. 1446class ObjCIvarRefExpr : public Expr { 1447 class ObjCIvarDecl *D; 1448 SourceLocation Loc; 1449 Expr *Base; 1450 bool IsArrow:1; // True if this is "X->F", false if this is "X.F". 1451 bool IsFreeIvar:1; // True if ivar reference has no base (self assumed). 1452 1453public: 1454 ObjCIvarRefExpr(ObjCIvarDecl *d, QualType t, SourceLocation l, Expr *base=0, 1455 bool arrow = false, bool freeIvar = false) : 1456 Expr(ObjCIvarRefExprClass, t), D(d), Loc(l), Base(base), IsArrow(arrow), 1457 IsFreeIvar(freeIvar) {} 1458 1459 ObjCIvarDecl *getDecl() { return D; } 1460 const ObjCIvarDecl *getDecl() const { return D; } 1461 virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 1462 const Expr *getBase() const { return Base; } 1463 Expr *getBase() { return Base; } 1464 void setBase(Expr * base) { Base = base; } 1465 bool isArrow() const { return IsArrow; } 1466 bool isFreeIvar() const { return IsFreeIvar; } 1467 1468 SourceLocation getLocation() const { return Loc; } 1469 1470 static bool classof(const Stmt *T) { 1471 return T->getStmtClass() == ObjCIvarRefExprClass; 1472 } 1473 static bool classof(const ObjCIvarRefExpr *) { return true; } 1474 1475 // Iterators 1476 virtual child_iterator child_begin(); 1477 virtual child_iterator child_end(); 1478 1479 virtual void EmitImpl(llvm::Serializer& S) const; 1480 static ObjCIvarRefExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1481}; 1482 1483class ObjCMessageExpr : public Expr { 1484 enum { RECEIVER=0, ARGS_START=1 }; 1485 1486 Expr **SubExprs; 1487 1488 unsigned NumArgs; 1489 1490 // A unigue name for this message. 1491 Selector SelName; 1492 1493 // A method prototype for this message (optional). 1494 // FIXME: Since method decls contain the selector, and most messages have a 1495 // prototype, consider devising a scheme for unifying SelName/MethodProto. 1496 ObjCMethodDecl *MethodProto; 1497 1498 IdentifierInfo *ClassName; // optional - 0 for instance messages. 1499 1500 SourceLocation LBracloc, RBracloc; 1501public: 1502 // constructor for class messages. 1503 // FIXME: clsName should be typed to ObjCInterfaceType 1504 ObjCMessageExpr(IdentifierInfo *clsName, Selector selInfo, 1505 QualType retType, ObjCMethodDecl *methDecl, 1506 SourceLocation LBrac, SourceLocation RBrac, 1507 Expr **ArgExprs, unsigned NumArgs); 1508 // constructor for instance messages. 1509 ObjCMessageExpr(Expr *receiver, Selector selInfo, 1510 QualType retType, ObjCMethodDecl *methDecl, 1511 SourceLocation LBrac, SourceLocation RBrac, 1512 Expr **ArgExprs, unsigned NumArgs); 1513 ~ObjCMessageExpr() { 1514 delete [] SubExprs; 1515 } 1516 1517 const Expr *getReceiver() const { return SubExprs[RECEIVER]; } 1518 Expr *getReceiver() { return SubExprs[RECEIVER]; } 1519 1520 Selector getSelector() const { return SelName; } 1521 Selector &getSelector() { return SelName; } 1522 1523 const ObjCMethodDecl *getMethodDecl() const { return MethodProto; } 1524 ObjCMethodDecl *getMethodDecl() { return MethodProto; } 1525 1526 const IdentifierInfo *getClassName() const { return ClassName; } 1527 IdentifierInfo *getClassName() { return ClassName; } 1528 1529 /// getNumArgs - Return the number of actual arguments to this call. 1530 unsigned getNumArgs() const { return NumArgs; } 1531 1532/// getArg - Return the specified argument. 1533 Expr *getArg(unsigned Arg) { 1534 assert(Arg < NumArgs && "Arg access out of range!"); 1535 return SubExprs[Arg+ARGS_START]; 1536 } 1537 const Expr *getArg(unsigned Arg) const { 1538 assert(Arg < NumArgs && "Arg access out of range!"); 1539 return SubExprs[Arg+ARGS_START]; 1540 } 1541 /// setArg - Set the specified argument. 1542 void setArg(unsigned Arg, Expr *ArgExpr) { 1543 assert(Arg < NumArgs && "Arg access out of range!"); 1544 SubExprs[Arg+ARGS_START] = ArgExpr; 1545 } 1546 SourceRange getSourceRange() const { return SourceRange(LBracloc, RBracloc); } 1547 1548 static bool classof(const Stmt *T) { 1549 return T->getStmtClass() == ObjCMessageExprClass; 1550 } 1551 static bool classof(const ObjCMessageExpr *) { return true; } 1552 1553 // Iterators 1554 virtual child_iterator child_begin(); 1555 virtual child_iterator child_end(); 1556 1557 typedef Expr** arg_iterator; 1558 typedef const Expr* const* const_arg_iterator; 1559 1560 arg_iterator arg_begin() { return &SubExprs[ARGS_START]; } 1561 arg_iterator arg_end() { return arg_begin() + NumArgs; } 1562 const_arg_iterator arg_begin() const { return &SubExprs[ARGS_START]; } 1563 const_arg_iterator arg_end() const { return arg_begin() + NumArgs; } 1564}; 1565 1566} // end namespace clang 1567 1568#endif 1569