Expr.h revision 8a99764f9b778a54e7440b1ee06a1e48f25d76d8
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. 72a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// 8eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch//===----------------------------------------------------------------------===// 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 10010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles)// This file defines the Expr interface and subclasses. 11cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)// 125d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)//===----------------------------------------------------------------------===// 137dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef LLVM_CLANG_AST_EXPR_H 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define LLVM_CLANG_AST_EXPR_H 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "clang/AST/Stmt.h" 182385ea399aae016c0806a4f9ef3c9cfe3d2a39dfBen Murdoch#include "clang/AST/Type.h" 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "clang/AST/Decl.h" 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "clang/AST/DeclObjC.h" 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "clang/Basic/IdentifierTable.h" 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "llvm/ADT/APSInt.h" 235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "llvm/ADT/APFloat.h" 24868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include <vector> 252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class llvm::Constant; 272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)namespace clang { 292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) class IdentifierInfo; 302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) class Selector; 312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) class Decl; 322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) class ASTContext; 332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)/// Expr - This represents one expression. Note that Expr's are subclasses of 352a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)/// Stmt. This allows an expression to be transparently used any place a Stmt 365c02ac1a9c1b504631c0a3d2b6e737b5d738bae1Bo Liu/// is required. 375c02ac1a9c1b504631c0a3d2b6e737b5d738bae1Bo Liu/// 382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class Expr : public Stmt { 392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QualType TR; 402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)protected: 412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) Expr(StmtClass SC, QualType T) : Stmt(SC), TR(T) {} 422a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)public: 432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QualType getType() const { return TR; } 442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) void setType(QualType t) { TR = t; } 452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// SourceLocation tokens are not useful in isolation - they are low level 472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// value objects created/interpreted by SourceManager. We assume AST 482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// clients will have a pointer to the respective SourceManager. 492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual SourceRange getSourceRange() const = 0; 50a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 51a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) /// getExprLoc - Return the preferred location for the arrow when diagnosing 52a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) /// a problem with a generic expression. 53a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) virtual SourceLocation getExprLoc() const { return getLocStart(); } 54a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 55a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) /// hasLocalSideEffect - Return true if this immediate expression has side 56a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) /// effects, not counting any sub-expressions. 57a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) bool hasLocalSideEffect() const; 58a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 59a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) /// isLvalue - C99 6.3.2.1: an lvalue is an expression with an object type or 60a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) /// incomplete type other than void. Nonarray expressions that can be lvalues: 61a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) /// - name, where name must be a variable 62a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) /// - e[i] 63a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) /// - (e), where e must be an lvalue 642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// - e.name, where e must be an lvalue 652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// - e->name 662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// - *e, the type of e cannot be a function type 67d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) /// - string-constant 68d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) /// - reference type [C++ [expr]] 69d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) /// 70d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) enum isLvalueResult { 71d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) LV_Valid, 725d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) LV_NotObjectType, 735d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) LV_IncompleteVoidType, 741e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) LV_DuplicateVectorComponents, 752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) LV_InvalidExpression 762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) }; 772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) isLvalueResult isLvalue() const; 785d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 795d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 805d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) /// does not have an incomplete type, does not have a const-qualified type, 815d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) /// and if it is a structure or union, does not have any member (including, 82cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) /// recursively, any member or element of all contained aggregates or unions) 83cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) /// with a const-qualified type. 84a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) enum isModifiableLvalueResult { 85a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) MLV_Valid, 86d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) MLV_NotObjectType, 87d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) MLV_IncompleteVoidType, 88d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) MLV_DuplicateVectorComponents, 89d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) MLV_InvalidExpression, 900529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch MLV_IncompleteType, 910529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch MLV_ConstQualified, 920529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch MLV_ArrayType 930529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch }; 942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) isModifiableLvalueResult isModifiableLvalue() const; 952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 962a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool isNullPointerConstant(ASTContext &Ctx) const; 972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 98f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) /// isIntegerConstantExpr - Return true if this expression is a valid integer 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// constant expression, and, if so, return its value in Result. If not a 1002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// valid i-c-e, return false and fill in Loc (if specified) with the location 10190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) /// of the invalid expression. 102ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 1035d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) SourceLocation *Loc = 0, 1042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool isEvaluated = true) const; 105868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const { 1062a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) llvm::APSInt X(32); 107d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) return isIntegerConstantExpr(X, Ctx, Loc); 108f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) } 1096d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) /// isConstantExpr - Return true if this expression is a valid constant expr. 1106d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) bool isConstantExpr(ASTContext &Ctx, SourceLocation *Loc) const; 1116d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) 1126d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) /// hasGlobalStorage - Return true if this expression has static storage 1136d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) /// duration. This means that the address of this expression is a link-time 1146d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) /// constant. 1156d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) bool hasGlobalStorage() const; 1166d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) 1176d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 1186d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) /// its subexpression. If that subexpression is also a ParenExpr, 1196d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) /// then this method recursively returns its subexpression, and so forth. 1205f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) /// Otherwise, the method returns the current Expr. 121868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) Expr* IgnoreParens(); 1225f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 123868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 1240f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) /// or CastExprs or ImplicitCastExprs, returning their operand. 125ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch Expr *IgnoreParenCasts(); 126ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch 127ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch const Expr* IgnoreParens() const { 128ba5b9a6411cb1792fd21f0a078d7a25cd1ceec16Ben Murdoch return const_cast<Expr*>(this)->IgnoreParens(); 129a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 130a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) const Expr *IgnoreParenCasts() const { 131a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return const_cast<Expr*>(this)->IgnoreParenCasts(); 132a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 133a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 134a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) static bool classof(const Stmt *T) { 1355d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return T->getStmtClass() >= firstExprConstant && 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) T->getStmtClass() <= lastExprConstant; 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const Expr *) { return true; } 1392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1402a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) static inline Expr* Create(llvm::Deserializer& D, ASTContext& C) { 141f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) return cast<Expr>(Stmt::Create(D, C)); 142f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) } 143f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles)}; 144f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 145f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles)//===----------------------------------------------------------------------===// 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Primary Expressions. 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)//===----------------------------------------------------------------------===// 1485c02ac1a9c1b504631c0a3d2b6e737b5d738bae1Bo Liu 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 1505c02ac1a9c1b504631c0a3d2b6e737b5d738bae1Bo Liu/// enum, etc. 151f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles)class DeclRefExpr : public Expr { 152f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) ValueDecl *D; 153424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) SourceLocation Loc; 154424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)public: 155f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) DeclRefExpr(ValueDecl *d, QualType t, SourceLocation l) : 156f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) Expr(DeclRefExprClass, t), D(d), Loc(l) {} 157f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 158f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) ValueDecl *getDecl() { return D; } 159f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) const ValueDecl *getDecl() const { return D; } 160f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 161f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 162f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 163f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) static bool classof(const Stmt *T) { 164f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) return T->getStmtClass() == DeclRefExprClass; 165424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) } 166424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) static bool classof(const DeclRefExpr *) { return true; } 167424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Iterators 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_begin(); 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_end(); 1715d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1725d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 1735d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) static DeclRefExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1745d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)}; 1755d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1765d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)/// PreDefinedExpr - [C99 6.4.2.2] - A pre-defined identifier such as __func__. 1775d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)class PreDefinedExpr : public Expr { 1785d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)public: 1795d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) enum IdentType { 1805d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) Func, 1815d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) Function, 1825d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) PrettyFunction 1835d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) }; 1845d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1855d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)private: 1865d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) SourceLocation Loc; 1875d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) IdentType Type; 1885d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)public: 1895d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) PreDefinedExpr(SourceLocation l, QualType type, IdentType IT) 1905d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) : Expr(PreDefinedExprClass, type), Loc(l), Type(IT) {} 1915d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1925d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) IdentType getIdentType() const { return Type; } 1935d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1945d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 1955d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1965d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) static bool classof(const Stmt *T) { 1975d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return T->getStmtClass() == PreDefinedExprClass; 1985d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 1995d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) static bool classof(const PreDefinedExpr *) { return true; } 2005d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 2015d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Iterators 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_begin(); 2035d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) virtual child_iterator child_end(); 2045d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 2055d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 2065d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) static PreDefinedExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 2075d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)}; 2085d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 209a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)class IntegerLiteral : public Expr { 2105d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) llvm::APInt Value; 2115d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) SourceLocation Loc; 2125d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)public: 2135d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 2145d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // or UnsignedLongLongTy 215f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) IntegerLiteral(const llvm::APInt &V, QualType type, SourceLocation l) 2165d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) : Expr(IntegerLiteralClass, type), Value(V), Loc(l) { 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 218f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) } 219f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) const llvm::APInt &getValue() const { return Value; } 220f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 221f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const Stmt *T) { 2235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return T->getStmtClass() == IntegerLiteralClass; 224a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 2255d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) static bool classof(const IntegerLiteral *) { return true; } 2262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Iterators 2282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual child_iterator child_begin(); 2292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual child_iterator child_end(); 2302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static IntegerLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 2331e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)}; 234424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) 235868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)class CharacterLiteral : public Expr { 236868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) unsigned Value; 237868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) SourceLocation Loc; 238868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)public: 239a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) // type should be IntTy 2405d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) CharacterLiteral(unsigned value, QualType type, SourceLocation l) 2415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : Expr(CharacterLiteralClass, type), Value(value), Loc(l) { 2421e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) } 2431e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) SourceLocation getLoc() const { return Loc; } 2445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2451e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 2461e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) 2475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unsigned getValue() const { return Value; } 2485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const Stmt *T) { 2505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return T->getStmtClass() == CharacterLiteralClass; 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 252a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) static bool classof(const CharacterLiteral *) { return true; } 253a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 254010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) // Iterators 255a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) virtual child_iterator child_begin(); 256a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) virtual child_iterator child_end(); 257a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 258a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 259116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch static CharacterLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 260a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)}; 261a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 262a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)class FloatingLiteral : public Expr { 263a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) llvm::APFloat Value; 264a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) bool IsExact : 1; 265f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) SourceLocation Loc; 266cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)public: 267010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) FloatingLiteral(const llvm::APFloat &V, bool* isexact, 268010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) QualType Type, SourceLocation L) 269a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) : Expr(FloatingLiteralClass, Type), Value(V), IsExact(*isexact), Loc(L) {} 270a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 271a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) const llvm::APFloat &getValue() const { return Value; } 272116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 273116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch bool isExact() const { return IsExact; } 274116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 275116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch /// getValueAsDouble - This returns the value as an inaccurate double. Note 276116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch /// that this may cause loss of precision, but is useful for debugging dumps 277116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch /// etc. 278116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch double getValueAsDouble() const { 279116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch // FIXME: We need something for long double here. 280a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (cast<BuiltinType>(getType())->getKind() == BuiltinType::Float) 281a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return Value.convertToFloat(); 282a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) else 283a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return Value.convertToDouble(); 284010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) } 285010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) 286010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 287010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) 288010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) static bool classof(const Stmt *T) { 289010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) return T->getStmtClass() == FloatingLiteralClass; 290a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 291a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) static bool classof(const FloatingLiteral *) { return true; } 292a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 293a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // Iterators 294a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) virtual child_iterator child_begin(); 295a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) virtual child_iterator child_end(); 296a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 297a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 298a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) static FloatingLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 299a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)}; 300a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 301a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)/// ImaginaryLiteral - We support imaginary integer and floating point literals, 302a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 303a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)/// IntegerLiteral classes. Instances of this class always have a Complex type 304cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)/// whose element type matches the subexpression. 305cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)/// 306cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)class ImaginaryLiteral : public Expr { 307a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) Expr *Val; 308cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)public: 309cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) ImaginaryLiteral(Expr *val, QualType Ty) 310cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) : Expr(ImaginaryLiteralClass, Ty), Val(val) {} 311cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 312cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) const Expr *getSubExpr() const { return Val; } 313cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) Expr *getSubExpr() { return Val; } 314cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 315cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) virtual SourceRange getSourceRange() const { return Val->getSourceRange(); } 316cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) static bool classof(const Stmt *T) { 317cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) return T->getStmtClass() == ImaginaryLiteralClass; 318cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) } 319cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) static bool classof(const ImaginaryLiteral *) { return true; } 3200529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 3210529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch // Iterators 3220529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch virtual child_iterator child_begin(); 3232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual child_iterator child_end(); 3240529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 3250529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch virtual void EmitImpl(llvm::Serializer& S) const; 326a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) static ImaginaryLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 327cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)}; 328cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 329010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles)/// StringLiteral - This represents a string literal expression, e.g. "foo" 330d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles)/// or L"bar" (wide strings). The actual string is returned by getStrData() 331d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles)/// is NOT null-terminated, and the length of the string is determined by 332a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)/// calling getByteLength(). The C type for a string is always a 333a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)/// ConstantArrayType. 334a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)class StringLiteral : public Expr { 335a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) const char *StrData; 3363551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) unsigned ByteLength; 3375d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) bool IsWide; 338d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) // if the StringLiteral was composed using token pasting, both locations 339d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) // are needed. If not (the common case), firstTokLoc == lastTokLoc. 340d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) // FIXME: if space becomes an issue, we should create a sub-class. 341d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) SourceLocation firstTokLoc, lastTokLoc; 3420529e5d033099cbfc42635f6f6183833b09dff6eBen Murdochpublic: 3432a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) StringLiteral(const char *strData, unsigned byteLength, bool Wide, 3442a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) QualType t, SourceLocation b, SourceLocation e); 3452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual ~StringLiteral(); 3462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const char *getStrData() const { return StrData; } 348a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) unsigned getByteLength() const { return ByteLength; } 3492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) bool isWide() const { return IsWide; } 350cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 351cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) virtual SourceRange getSourceRange() const { 352cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) return SourceRange(firstTokLoc,lastTokLoc); 353cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) } 354cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) static bool classof(const Stmt *T) { 355cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) return T->getStmtClass() == StringLiteralClass; 356cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) } 357cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) static bool classof(const StringLiteral *) { return true; } 3582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 3592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Iterators 360d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) virtual child_iterator child_begin(); 361d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) virtual child_iterator child_end(); 362d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) 363d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 3640529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch static StringLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 3650529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch}; 3660529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch 3670529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 368f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)/// AST node is only formed if full location information is requested. 369f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)class ParenExpr : public Expr { 370a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) SourceLocation L, R; 371f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) Expr *Val; 372f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)public: 373f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 374f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) : Expr(ParenExprClass, val->getType()), L(l), R(r), Val(val) {} 375f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 376f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) const Expr *getSubExpr() const { return Val; } 3775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr *getSubExpr() { return Val; } 3785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual SourceRange getSourceRange() const { return SourceRange(L, R); } 37923730a6e56a168d1879203e4b3819bb36e3d8f1fTorne (Richard Coles) 38023730a6e56a168d1879203e4b3819bb36e3d8f1fTorne (Richard Coles) static bool classof(const Stmt *T) { 38123730a6e56a168d1879203e4b3819bb36e3d8f1fTorne (Richard Coles) return T->getStmtClass() == ParenExprClass; 38223730a6e56a168d1879203e4b3819bb36e3d8f1fTorne (Richard Coles) } 38323730a6e56a168d1879203e4b3819bb36e3d8f1fTorne (Richard Coles) static bool classof(const ParenExpr *) { return true; } 38423730a6e56a168d1879203e4b3819bb36e3d8f1fTorne (Richard Coles) 3855d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Iterators 3865d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) virtual child_iterator child_begin(); 3875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual child_iterator child_end(); 3885d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 3895d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 390c5cede9ae108bb15f6b7a8aea21c7e1fefa2834cBen Murdoch static ParenExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 3910529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch}; 392c5cede9ae108bb15f6b7a8aea21c7e1fefa2834cBen Murdoch 393c5cede9ae108bb15f6b7a8aea21c7e1fefa2834cBen Murdoch 394424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)/// UnaryOperator - This represents the unary-expression's (except sizeof of 3955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// types), the postinc/postdec operators from postfix-expression, and various 3965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// extensions. 3972a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)/// 398a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)/// Notes on various nodes: 399a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)/// 400a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)/// Real/Imag - These return the real/imag part of a complex operand. If 4012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)/// applied to a non-complex value, the former returns its operand and the 4022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)/// later returns zero in the type of the operand. 4032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)/// 4042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)/// __builtin_offsetof(type, a.b[10]) is represented as a unary operator whose 4055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// subexpression is a compound literal with the various MemberExpr and 406424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)/// ArraySubscriptExpr's applied to it. 407424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)/// 408424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)class UnaryOperator : public Expr { 409424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles)public: 410424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) // Note that additions to this should also update the StmtVisitor class. 411f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) enum Opcode { 4125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PostInc, PostDec, // [C99 6.5.2.4] Postfix increment and decrement operators 4135d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) PreInc, PreDec, // [C99 6.5.3.1] Prefix increment and decrement operators. 4145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AddrOf, Deref, // [C99 6.5.3.2] Address and indirection operators. 415f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) Plus, Minus, // [C99 6.5.3.3] Unary arithmetic operators. 4165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Not, LNot, // [C99 6.5.3.3] Unary arithmetic operators. 4175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SizeOf, AlignOf, // [C99 6.5.3.4] Sizeof (expr, not type) operator. 4185d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) Real, Imag, // "__real expr"/"__imag expr" Extension. 4195d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) Extension, // __extension__ marker. 4205d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) OffsetOf // __builtin_offsetof 4215d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) }; 4225d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)private: 4235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) Expr *Val; 4245d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) Opcode Opc; 4252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SourceLocation Loc; 426f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles)public: 427f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 428f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) UnaryOperator(Expr *input, Opcode opc, QualType type, SourceLocation l) 429f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) : Expr(UnaryOperatorClass, type), Val(input), Opc(opc), Loc(l) {} 430f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 431f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) Opcode getOpcode() const { return Opc; } 432f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) Expr *getSubExpr() const { return Val; } 433f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 434f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) /// getOperatorLoc - Return the location of the operator. 435f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) SourceLocation getOperatorLoc() const { return Loc; } 436f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 4375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// isPostfix - Return true if this is a postfix operation, like x++. 438c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) static bool isPostfix(Opcode Op); 4395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool isPostfix() const { return isPostfix(Opc); } 441f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) bool isIncrementOp() const {return Opc==PreInc || Opc==PostInc; } 442f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) bool isIncrementDecrementOp() const { return Opc>=PostInc && Opc<=PreDec; } 443f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) bool isSizeOfAlignOfOp() const { return Opc == SizeOf || Opc == AlignOf; } 444f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) bool isOffsetOfOp() const { return Opc == OffsetOf; } 445f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) static bool isArithmeticOp(Opcode Op) { return Op >= Plus && Op <= LNot; } 446f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 447f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 448f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) /// corresponds to, e.g. "sizeof" or "[pre]++" 449f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) static const char *getOpcodeStr(Opcode Op); 450f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 451f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) virtual SourceRange getSourceRange() const { 452f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) if (isPostfix()) 453f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) return SourceRange(Val->getLocStart(), Loc); 454f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) else 455f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) return SourceRange(Loc, Val->getLocEnd()); 456f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) } 457f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) virtual SourceLocation getExprLoc() const { return Loc; } 458f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 459f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) static bool classof(const Stmt *T) { 460f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) return T->getStmtClass() == UnaryOperatorClass; 461f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) } 462f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) static bool classof(const UnaryOperator *) { return true; } 463f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 464f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) int64_t evaluateOffsetOf(ASTContext& C) const; 465f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 466f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) // Iterators 467f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) virtual child_iterator child_begin(); 468f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) virtual child_iterator child_end(); 469f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 470c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 471c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) static UnaryOperator* CreateImpl(llvm::Deserializer& D, ASTContext& C); 4725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 4735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 474c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)/// SizeOfAlignOfTypeExpr - [C99 6.5.3.4] - This is only for sizeof/alignof of 475c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)/// *types*. sizeof(expr) is handled by UnaryOperator. 476c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)class SizeOfAlignOfTypeExpr : public Expr { 477c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) bool isSizeof; // true if sizeof, false if alignof. 4780f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) QualType Ty; 4790f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) SourceLocation OpLoc, RParenLoc; 4806d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles)public: 481116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch SizeOfAlignOfTypeExpr(bool issizeof, QualType argType, QualType resultType, 4826d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) SourceLocation op, SourceLocation rp) : 4836d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) Expr(SizeOfAlignOfTypeExprClass, resultType), 4846d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) isSizeof(issizeof), Ty(argType), OpLoc(op), RParenLoc(rp) {} 4856d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) 4866d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) bool isSizeOf() const { return isSizeof; } 4876d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) QualType getArgumentType() const { return Ty; } 4886d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) 4896d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) SourceLocation getOperatorLoc() const { return OpLoc; } 4906d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) 4916d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) virtual SourceRange getSourceRange() const { 4926d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) return SourceRange(OpLoc, RParenLoc); 4936d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) } 4946d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) 4956d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) static bool classof(const Stmt *T) { 4966d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) return T->getStmtClass() == SizeOfAlignOfTypeExprClass; 4976d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) } 4986d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) static bool classof(const SizeOfAlignOfTypeExpr *) { return true; } 4996d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) 5006d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) // Iterators 5016d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) virtual child_iterator child_begin(); 5026d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) virtual child_iterator child_end(); 5036d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) 5046d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 5056d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) static SizeOfAlignOfTypeExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 5066d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles)}; 5076d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles) 5086d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles)//===----------------------------------------------------------------------===// 5096d86b77056ed63eb6871182f42a9fd5f07550f90Torne (Richard Coles)// Postfix Operators. 510f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles)//===----------------------------------------------------------------------===// 511f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 512f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles)/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 513f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles)class ArraySubscriptExpr : public Expr { 514f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) enum { LHS, RHS, END_EXPR=2 }; 515f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) Expr* SubExprs[END_EXPR]; 516f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) SourceLocation RBracketLoc; 517f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles)public: 518f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 51946d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) SourceLocation rbracketloc) 520e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch : Expr(ArraySubscriptExprClass, t), RBracketLoc(rbracketloc) { 521f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) SubExprs[LHS] = lhs; 522f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) SubExprs[RHS] = rhs; 523010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles) } 524116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 525116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch /// An array access can be written A[4] or 4[A] (both are equivalent). 526116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch /// - getBase() and getIdx() always present the normalized view: A[4]. 527116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch /// In this case getBase() returns "A" and getIdx() returns "4". 528116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch /// - getLHS() and getRHS() present the syntactic view. e.g. for 529f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) /// 4[A] getLHS() returns "4". 530f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) /// Note: Because vector element access is also written A[4] we must 531f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) /// predicate the format conversion in getBase and getIdx only on the 532e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch /// the type of the RHS, as it is possible for the LHS to be a vector of 5330f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) /// integer type 5340f1bc08d4cfcc34181b0b5cbf065c40f687bf740Torne (Richard Coles) Expr *getLHS() { return SubExprs[LHS]; } 535f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) const Expr *getLHS() const { return SubExprs[LHS]; } 536f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 537f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) Expr *getRHS() { return SubExprs[RHS]; } 538f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) const Expr *getRHS() const { return SubExprs[RHS]; } 539f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 540f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) Expr *getBase() { 541f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) return (getRHS()->getType()->isIntegerType()) ? getLHS() : getRHS(); 542f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) } 543f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 544f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) const Expr *getBase() const { 545f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) return (getRHS()->getType()->isIntegerType()) ? getLHS() : getRHS(); 546f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) } 547f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) 548f8ee788a64d60abd8f2d742a5fdedde054ecd910Torne (Richard Coles) Expr *getIdx() { 549c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) return (getRHS()->getType()->isIntegerType()) ? getRHS() : getLHS(); 55090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 55190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 55290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) const Expr *getIdx() const { 55390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) return (getRHS()->getType()->isIntegerType()) ? getRHS() : getLHS(); 55490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 55590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 55690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) virtual SourceRange getSourceRange() const { 55790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) return SourceRange(getLHS()->getLocStart(), RBracketLoc); 55890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 559a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 56090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) virtual SourceLocation getExprLoc() const { return RBracketLoc; } 56190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 56290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) static bool classof(const Stmt *T) { 563868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) return T->getStmtClass() == ArraySubscriptExprClass; 56490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) } 5655c02ac1a9c1b504631c0a3d2b6e737b5d738bae1Bo Liu static bool classof(const ArraySubscriptExpr *) { return true; } 5665c02ac1a9c1b504631c0a3d2b6e737b5d738bae1Bo Liu 567cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) // Iterators 568868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) virtual child_iterator child_begin(); 56990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) virtual child_iterator child_end(); 57090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 57190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 57290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) static ArraySubscriptExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 573868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)}; 574b2df76ea8fec9e32f6f3718986dba0d95315b29cTorne (Richard Coles) 5752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 5762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)/// CallExpr - [C99 6.5.2.2] Function Calls. 5773551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)/// 5783551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)class CallExpr : public Expr { 5793551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) enum { FN=0, ARGS_START=1 }; 5803551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) Expr **SubExprs; 5813551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) unsigned NumArgs; 5823551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) SourceLocation RParenLoc; 5833551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) 5843551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) // This version of the ctor is for deserialization. 58590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) CallExpr(Expr** subexprs, unsigned numargs, QualType t, 58690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) SourceLocation rparenloc) 58790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) : Expr(CallExprClass,t), SubExprs(subexprs), 58890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) NumArgs(numargs), RParenLoc(rparenloc) {} 5895d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 590f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)public: 591a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) CallExpr(Expr *fn, Expr **args, unsigned numargs, QualType t, 592d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) SourceLocation rparenloc); 5935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ~CallExpr() { 5945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delete [] SubExprs; 5955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 5965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const Expr *getCallee() const { return SubExprs[FN]; } 5985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr *getCallee() { return SubExprs[FN]; } 5995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void setCallee(Expr *F) { SubExprs[FN] = F; } 6005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// getNumArgs - Return the number of actual arguments to this call. 6025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// 6035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) unsigned getNumArgs() const { return NumArgs; } 6045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// getArg - Return the specified argument. 606a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) Expr *getArg(unsigned Arg) { 6075d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) assert(Arg < NumArgs && "Arg access out of range!"); 6085d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return SubExprs[Arg+ARGS_START]; 6095d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 6105d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const Expr *getArg(unsigned Arg) const { 6115d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) assert(Arg < NumArgs && "Arg access out of range!"); 6125d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return SubExprs[Arg+ARGS_START]; 6135d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 6145d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) /// setArg - Set the specified argument. 6155d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) void setArg(unsigned Arg, Expr *ArgExpr) { 6165d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) assert(Arg < NumArgs && "Arg access out of range!"); 617a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) SubExprs[Arg+ARGS_START] = ArgExpr; 6185d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 6195d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 6205d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) /// setNumArgs - This changes the number of arguments present in this call. 6215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// Any orphaned expressions are deleted by this, and any new operands are set 6225d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) /// to null. 6235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void setNumArgs(unsigned NumArgs); 6245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) typedef Expr **arg_iterator; 6265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) typedef Expr * const *arg_const_iterator; 6272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) arg_iterator arg_begin() { return SubExprs+ARGS_START; } 6282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) arg_iterator arg_end() { return SubExprs+ARGS_START+getNumArgs(); } 6292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) arg_const_iterator arg_begin() const { return SubExprs+ARGS_START; } 6302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) arg_const_iterator arg_end() const { return SubExprs+ARGS_START+getNumArgs(); } 6315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// getNumCommas - Return the number of commas that must have been present in 6345d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) /// this function call. 6355d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 6365d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 6375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool isBuiltinClassifyType(llvm::APSInt &Result) const; 6385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /// isBuiltinConstantExpr - Return true if this built-in call is constant. 6405d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) bool isBuiltinConstantExpr() const; 6415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) SourceLocation getRParenLoc() const { return RParenLoc; } 6435d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 6445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual SourceRange getSourceRange() const { 6455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return SourceRange(getCallee()->getLocStart(), RParenLoc); 6465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const Stmt *T) { 6495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return T->getStmtClass() == CallExprClass; 6505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 651e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch static bool classof(const CallExpr *) { return true; } 652e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch 653e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch // Iterators 654e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch virtual child_iterator child_begin(); 655e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch virtual child_iterator child_end(); 656e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch 657e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch virtual void EmitImpl(llvm::Serializer& S) const; 658e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch static CallExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 659e5d81f57cb97b3b6b7fccc9c5610d21eb81db09dBen Murdoch}; 6605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. 66258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)/// 663a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)class MemberExpr : public Expr { 6645d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) Expr *Base; 6655d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) FieldDecl *MemberDecl; 6665d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) SourceLocation MemberLoc; 6675d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) bool IsArrow; // True if this is "X->F", false if this is "X.F". 66858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)public: 66958537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) MemberExpr(Expr *base, bool isarrow, FieldDecl *memberdecl, SourceLocation l, 67058537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) QualType ty) 67158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) : Expr(MemberExprClass, ty), 67258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) Base(base), MemberDecl(memberdecl), MemberLoc(l), IsArrow(isarrow) {} 6735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr *getBase() const { return Base; } 6755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FieldDecl *getMemberDecl() const { return MemberDecl; } 6765d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) bool isArrow() const { return IsArrow; } 6775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual SourceRange getSourceRange() const { 6795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return SourceRange(getBase()->getLocStart(), MemberLoc); 6805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual SourceLocation getExprLoc() const { return MemberLoc; } 6835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const Stmt *T) { 6855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return T->getStmtClass() == MemberExprClass; 6865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 6875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool classof(const MemberExpr *) { return true; } 6885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 689a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) // Iterators 690a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) virtual child_iterator child_begin(); 691424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) virtual child_iterator child_end(); 692424c4d7b64af9d0d8fd9624f381f469654d5e3d2Torne (Richard Coles) 6935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void EmitImpl(llvm::Serializer& S) const; 6945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static MemberExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 6955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 6965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 6975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// ExtVectorElementExpr - This represents access to specific elements of a 6985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// vector, and may occur on the left hand side or right hand side. For example 6995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 7005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/// 7015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class ExtVectorElementExpr : public Expr { 7025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Expr *Base; 7032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) IdentifierInfo &Accessor; 7042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SourceLocation AccessorLoc; 7052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)public: 7065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ExtVectorElementExpr(QualType ty, Expr *base, IdentifierInfo &accessor, 7072a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) SourceLocation loc) 708a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) : Expr(ExtVectorElementExprClass, ty), 7095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Base(base), Accessor(accessor), AccessorLoc(loc) {} 7105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 711d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) const Expr *getBase() const { return Base; } 7125d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) Expr *getBase() { return Base; } 7135d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 7145d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) IdentifierInfo &getAccessor() const { return Accessor; } 7155d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 7160529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch /// getNumElements - Get the number of components being selected. 7175d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) unsigned getNumElements() const; 7185d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 7195d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) /// containsDuplicateElements - Return true if any element access is 7205d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) /// repeated. 7215d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) bool containsDuplicateElements() const; 7225d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 7235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) /// getEncodedElementAccess - Encode the elements accessed into an llvm 724d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) /// aggregate Constant of ConstantInt(s). 725d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) llvm::Constant *getEncodedElementAccess() const; 726d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) 727d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) /// getAccessedFieldNo - Given an encoded value and a result number, return 728d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) /// the input field number being accessed. 729d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) static unsigned getAccessedFieldNo(unsigned Idx, 730d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) const llvm::Constant *Elts); 731d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) 732a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) virtual SourceRange getSourceRange() const { 7332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return SourceRange(getBase()->getLocStart(), AccessorLoc); 7342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 7355d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 736cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) static bool classof(const Stmt *T) { 737cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) return T->getStmtClass() == ExtVectorElementExprClass; 738cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) } 739f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) static bool classof(const ExtVectorElementExpr *) { return true; } 740f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) 74123730a6e56a168d1879203e4b3819bb36e3d8f1fTorne (Richard Coles) // Iterators 7427dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch virtual child_iterator child_begin(); 7437dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch virtual child_iterator child_end(); 7447dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch}; 7457dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 7462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)/// CompoundLiteralExpr - [C99 6.5.2.5] 7472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)/// 7482a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class CompoundLiteralExpr : public Expr { 7492a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// LParenLoc - If non-null, this is the location of the left paren in a 7502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) /// compound literal like "(int){4}". This can be null if this is a 751cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) /// synthesized compound expression. 752cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) SourceLocation LParenLoc; 753cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) Expr *Init; 754cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) bool FileScope; 75546d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles)public: 756116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch CompoundLiteralExpr(SourceLocation lparenloc, QualType ty, Expr *init, bool fileScope) : 757116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch Expr(CompoundLiteralExprClass, ty), LParenLoc(lparenloc), Init(init), FileScope(fileScope) {} 758116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 759116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch const Expr *getInitializer() const { return Init; } 760116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch Expr *getInitializer() { return Init; } 761116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch 76246d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) bool isFileScope() const { return FileScope; } 76346d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) 764116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch SourceLocation getLParenLoc() const { return LParenLoc; } 76546d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) 76646d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) virtual SourceRange getSourceRange() const { 76746d4c2bc3267f3f028f39e7e311b0f89aba2e4fdTorne (Richard Coles) // FIXME: Init should never be null. 768cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) if (!Init) 769cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) return SourceRange(); 7705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (LParenLoc.isInvalid()) 771 return Init->getSourceRange(); 772 return SourceRange(LParenLoc, Init->getLocEnd()); 773 } 774 775 static bool classof(const Stmt *T) { 776 return T->getStmtClass() == CompoundLiteralExprClass; 777 } 778 static bool classof(const CompoundLiteralExpr *) { return true; } 779 780 // Iterators 781 virtual child_iterator child_begin(); 782 virtual child_iterator child_end(); 783 784 virtual void EmitImpl(llvm::Serializer& S) const; 785 static CompoundLiteralExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 786}; 787 788/// ImplicitCastExpr - Allows us to explicitly represent implicit type 789/// conversions. For example: converting T[]->T*, void f()->void (*f)(), 790/// float->double, short->int, etc. 791/// 792class ImplicitCastExpr : public Expr { 793 Expr *Op; 794public: 795 ImplicitCastExpr(QualType ty, Expr *op) : 796 Expr(ImplicitCastExprClass, ty), Op(op) {} 797 798 Expr *getSubExpr() { return Op; } 799 const Expr *getSubExpr() const { return Op; } 800 801 virtual SourceRange getSourceRange() const { return Op->getSourceRange(); } 802 803 static bool classof(const Stmt *T) { 804 return T->getStmtClass() == ImplicitCastExprClass; 805 } 806 static bool classof(const ImplicitCastExpr *) { return true; } 807 808 // Iterators 809 virtual child_iterator child_begin(); 810 virtual child_iterator child_end(); 811 812 virtual void EmitImpl(llvm::Serializer& S) const; 813 static ImplicitCastExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 814}; 815 816/// CastExpr - [C99 6.5.4] Cast Operators. 817/// 818class CastExpr : public Expr { 819 Expr *Op; 820 SourceLocation Loc; // the location of the left paren 821public: 822 CastExpr(QualType ty, Expr *op, SourceLocation l) : 823 Expr(CastExprClass, ty), Op(op), Loc(l) {} 824 825 SourceLocation getLParenLoc() const { return Loc; } 826 827 Expr *getSubExpr() const { return Op; } 828 829 virtual SourceRange getSourceRange() const { 830 return SourceRange(Loc, getSubExpr()->getSourceRange().getEnd()); 831 } 832 static bool classof(const Stmt *T) { 833 return T->getStmtClass() == CastExprClass; 834 } 835 static bool classof(const CastExpr *) { return true; } 836 837 // Iterators 838 virtual child_iterator child_begin(); 839 virtual child_iterator child_end(); 840 841 virtual void EmitImpl(llvm::Serializer& S) const; 842 static CastExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 843}; 844 845class BinaryOperator : public Expr { 846public: 847 enum Opcode { 848 // Operators listed in order of precedence. 849 // Note that additions to this should also update the StmtVisitor class. 850 Mul, Div, Rem, // [C99 6.5.5] Multiplicative operators. 851 Add, Sub, // [C99 6.5.6] Additive operators. 852 Shl, Shr, // [C99 6.5.7] Bitwise shift operators. 853 LT, GT, LE, GE, // [C99 6.5.8] Relational operators. 854 EQ, NE, // [C99 6.5.9] Equality operators. 855 And, // [C99 6.5.10] Bitwise AND operator. 856 Xor, // [C99 6.5.11] Bitwise XOR operator. 857 Or, // [C99 6.5.12] Bitwise OR operator. 858 LAnd, // [C99 6.5.13] Logical AND operator. 859 LOr, // [C99 6.5.14] Logical OR operator. 860 Assign, MulAssign,// [C99 6.5.16] Assignment operators. 861 DivAssign, RemAssign, 862 AddAssign, SubAssign, 863 ShlAssign, ShrAssign, 864 AndAssign, XorAssign, 865 OrAssign, 866 Comma // [C99 6.5.17] Comma operator. 867 }; 868private: 869 enum { LHS, RHS, END_EXPR }; 870 Expr* SubExprs[END_EXPR]; 871 Opcode Opc; 872 SourceLocation OpLoc; 873public: 874 875 BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 876 SourceLocation opLoc) 877 : Expr(BinaryOperatorClass, ResTy), Opc(opc), OpLoc(opLoc) { 878 SubExprs[LHS] = lhs; 879 SubExprs[RHS] = rhs; 880 assert(!isCompoundAssignmentOp() && 881 "Use ArithAssignBinaryOperator for compound assignments"); 882 } 883 884 SourceLocation getOperatorLoc() const { return OpLoc; } 885 Opcode getOpcode() const { return Opc; } 886 Expr *getLHS() const { return SubExprs[LHS]; } 887 Expr *getRHS() const { return SubExprs[RHS]; } 888 virtual SourceRange getSourceRange() const { 889 return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 890 } 891 892 /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 893 /// corresponds to, e.g. "<<=". 894 static const char *getOpcodeStr(Opcode Op); 895 896 /// predicates to categorize the respective opcodes. 897 bool isMultiplicativeOp() const { return Opc >= Mul && Opc <= Rem; } 898 bool isAdditiveOp() const { return Opc == Add || Opc == Sub; } 899 bool isShiftOp() const { return Opc == Shl || Opc == Shr; } 900 bool isBitwiseOp() const { return Opc >= And && Opc <= Or; } 901 bool isRelationalOp() const { return Opc >= LT && Opc <= GE; } 902 bool isEqualityOp() const { return Opc == EQ || Opc == NE; } 903 bool isLogicalOp() const { return Opc == LAnd || Opc == LOr; } 904 bool isAssignmentOp() const { return Opc >= Assign && Opc <= OrAssign; } 905 bool isCompoundAssignmentOp() const { return Opc > Assign && Opc <= OrAssign;} 906 bool isShiftAssignOp() const { return Opc == ShlAssign || Opc == ShrAssign; } 907 908 static bool classof(const Stmt *S) { 909 return S->getStmtClass() == BinaryOperatorClass || 910 S->getStmtClass() == CompoundAssignOperatorClass; 911 } 912 static bool classof(const BinaryOperator *) { return true; } 913 914 // Iterators 915 virtual child_iterator child_begin(); 916 virtual child_iterator child_end(); 917 918 virtual void EmitImpl(llvm::Serializer& S) const; 919 static BinaryOperator* CreateImpl(llvm::Deserializer& D, ASTContext& C); 920 921protected: 922 BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 923 SourceLocation oploc, bool dead) 924 : Expr(CompoundAssignOperatorClass, ResTy), Opc(opc), OpLoc(oploc) { 925 SubExprs[LHS] = lhs; 926 SubExprs[RHS] = rhs; 927 } 928}; 929 930/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 931/// track of the type the operation is performed in. Due to the semantics of 932/// these operators, the operands are promoted, the aritmetic performed, an 933/// implicit conversion back to the result type done, then the assignment takes 934/// place. This captures the intermediate type which the computation is done 935/// in. 936class CompoundAssignOperator : public BinaryOperator { 937 QualType ComputationType; 938public: 939 CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, 940 QualType ResType, QualType CompType, 941 SourceLocation OpLoc) 942 : BinaryOperator(lhs, rhs, opc, ResType, OpLoc, true), 943 ComputationType(CompType) { 944 assert(isCompoundAssignmentOp() && 945 "Only should be used for compound assignments"); 946 } 947 948 QualType getComputationType() const { return ComputationType; } 949 950 static bool classof(const CompoundAssignOperator *) { return true; } 951 static bool classof(const Stmt *S) { 952 return S->getStmtClass() == CompoundAssignOperatorClass; 953 } 954 955 virtual void EmitImpl(llvm::Serializer& S) const; 956 static CompoundAssignOperator* CreateImpl(llvm::Deserializer& D, 957 ASTContext& C); 958}; 959 960/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 961/// GNU "missing LHS" extension is in use. 962/// 963class ConditionalOperator : public Expr { 964 enum { COND, LHS, RHS, END_EXPR }; 965 Expr* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 966public: 967 ConditionalOperator(Expr *cond, Expr *lhs, Expr *rhs, QualType t) 968 : Expr(ConditionalOperatorClass, t) { 969 SubExprs[COND] = cond; 970 SubExprs[LHS] = lhs; 971 SubExprs[RHS] = rhs; 972 } 973 974 // getCond - Return the expression representing the condition for 975 // the ?: operator. 976 Expr *getCond() const { return SubExprs[COND]; } 977 978 // getTrueExpr - Return the subexpression representing the value of the ?: 979 // expression if the condition evaluates to true. In most cases this value 980 // will be the same as getLHS() except a GCC extension allows the left 981 // subexpression to be omitted, and instead of the condition be returned. 982 // e.g: x ?: y is shorthand for x ? x : y, except that the expression "x" 983 // is only evaluated once. 984 Expr *getTrueExpr() const { 985 return SubExprs[LHS] ? SubExprs[COND] : SubExprs[LHS]; 986 } 987 988 // getTrueExpr - Return the subexpression representing the value of the ?: 989 // expression if the condition evaluates to false. This is the same as getRHS. 990 Expr *getFalseExpr() const { return SubExprs[RHS]; } 991 992 Expr *getLHS() const { return SubExprs[LHS]; } 993 Expr *getRHS() const { return SubExprs[RHS]; } 994 995 virtual SourceRange getSourceRange() const { 996 return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 997 } 998 static bool classof(const Stmt *T) { 999 return T->getStmtClass() == ConditionalOperatorClass; 1000 } 1001 static bool classof(const ConditionalOperator *) { return true; } 1002 1003 // Iterators 1004 virtual child_iterator child_begin(); 1005 virtual child_iterator child_end(); 1006 1007 virtual void EmitImpl(llvm::Serializer& S) const; 1008 static ConditionalOperator* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1009}; 1010 1011/// AddrLabelExpr - The GNU address of label extension, representing &&label. 1012class AddrLabelExpr : public Expr { 1013 SourceLocation AmpAmpLoc, LabelLoc; 1014 LabelStmt *Label; 1015public: 1016 AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 1017 QualType t) 1018 : Expr(AddrLabelExprClass, t), AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 1019 1020 virtual SourceRange getSourceRange() const { 1021 return SourceRange(AmpAmpLoc, LabelLoc); 1022 } 1023 1024 LabelStmt *getLabel() const { return Label; } 1025 1026 static bool classof(const Stmt *T) { 1027 return T->getStmtClass() == AddrLabelExprClass; 1028 } 1029 static bool classof(const AddrLabelExpr *) { return true; } 1030 1031 // Iterators 1032 virtual child_iterator child_begin(); 1033 virtual child_iterator child_end(); 1034 1035 virtual void EmitImpl(llvm::Serializer& S) const; 1036 static AddrLabelExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1037}; 1038 1039/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 1040/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 1041/// takes the value of the last subexpression. 1042class StmtExpr : public Expr { 1043 CompoundStmt *SubStmt; 1044 SourceLocation LParenLoc, RParenLoc; 1045public: 1046 StmtExpr(CompoundStmt *substmt, QualType T, 1047 SourceLocation lp, SourceLocation rp) : 1048 Expr(StmtExprClass, T), SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 1049 1050 CompoundStmt *getSubStmt() { return SubStmt; } 1051 const CompoundStmt *getSubStmt() const { return SubStmt; } 1052 1053 virtual SourceRange getSourceRange() const { 1054 return SourceRange(LParenLoc, RParenLoc); 1055 } 1056 1057 static bool classof(const Stmt *T) { 1058 return T->getStmtClass() == StmtExprClass; 1059 } 1060 static bool classof(const StmtExpr *) { return true; } 1061 1062 // Iterators 1063 virtual child_iterator child_begin(); 1064 virtual child_iterator child_end(); 1065 1066 virtual void EmitImpl(llvm::Serializer& S) const; 1067 static StmtExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1068}; 1069 1070/// TypesCompatibleExpr - GNU builtin-in function __builtin_type_compatible_p. 1071/// This AST node represents a function that returns 1 if two *types* (not 1072/// expressions) are compatible. The result of this built-in function can be 1073/// used in integer constant expressions. 1074class TypesCompatibleExpr : public Expr { 1075 QualType Type1; 1076 QualType Type2; 1077 SourceLocation BuiltinLoc, RParenLoc; 1078public: 1079 TypesCompatibleExpr(QualType ReturnType, SourceLocation BLoc, 1080 QualType t1, QualType t2, SourceLocation RP) : 1081 Expr(TypesCompatibleExprClass, ReturnType), Type1(t1), Type2(t2), 1082 BuiltinLoc(BLoc), RParenLoc(RP) {} 1083 1084 QualType getArgType1() const { return Type1; } 1085 QualType getArgType2() const { return Type2; } 1086 1087 virtual SourceRange getSourceRange() const { 1088 return SourceRange(BuiltinLoc, RParenLoc); 1089 } 1090 static bool classof(const Stmt *T) { 1091 return T->getStmtClass() == TypesCompatibleExprClass; 1092 } 1093 static bool classof(const TypesCompatibleExpr *) { return true; } 1094 1095 // Iterators 1096 virtual child_iterator child_begin(); 1097 virtual child_iterator child_end(); 1098}; 1099 1100/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 1101/// This AST node is similar to the conditional operator (?:) in C, with 1102/// the following exceptions: 1103/// - the test expression much be a constant expression. 1104/// - the expression returned has it's type unaltered by promotion rules. 1105/// - does not evaluate the expression that was not chosen. 1106class ChooseExpr : public Expr { 1107 enum { COND, LHS, RHS, END_EXPR }; 1108 Expr* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 1109 SourceLocation BuiltinLoc, RParenLoc; 1110public: 1111 ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, QualType t, 1112 SourceLocation RP) 1113 : Expr(ChooseExprClass, t), 1114 BuiltinLoc(BLoc), RParenLoc(RP) { 1115 SubExprs[COND] = cond; 1116 SubExprs[LHS] = lhs; 1117 SubExprs[RHS] = rhs; 1118 } 1119 1120 /// isConditionTrue - Return true if the condition is true. This is always 1121 /// statically knowable for a well-formed choosexpr. 1122 bool isConditionTrue(ASTContext &C) const; 1123 1124 Expr *getCond() const { return SubExprs[COND]; } 1125 Expr *getLHS() const { return SubExprs[LHS]; } 1126 Expr *getRHS() const { return SubExprs[RHS]; } 1127 1128 virtual SourceRange getSourceRange() const { 1129 return SourceRange(BuiltinLoc, RParenLoc); 1130 } 1131 static bool classof(const Stmt *T) { 1132 return T->getStmtClass() == ChooseExprClass; 1133 } 1134 static bool classof(const ChooseExpr *) { return true; } 1135 1136 // Iterators 1137 virtual child_iterator child_begin(); 1138 virtual child_iterator child_end(); 1139}; 1140 1141/// OverloadExpr - Clang builtin function __builtin_overload. 1142/// This AST node provides a way to overload functions in C. 1143/// 1144/// The first argument is required to be a constant expression, for the number 1145/// of arguments passed to each candidate function. 1146/// 1147/// The next N arguments, where N is the value of the constant expression, 1148/// are the values to be passed as arguments. 1149/// 1150/// The rest of the arguments are values of pointer to function type, which 1151/// are the candidate functions for overloading. 1152/// 1153/// The result is a equivalent to a CallExpr taking N arguments to the 1154/// candidate function whose parameter types match the types of the N arguments. 1155/// 1156/// example: float Z = __builtin_overload(2, X, Y, modf, mod, modl); 1157/// If X and Y are long doubles, Z will assigned the result of modl(X, Y); 1158/// If X and Y are floats, Z will be assigned the result of modf(X, Y); 1159class OverloadExpr : public Expr { 1160 // SubExprs - the list of values passed to the __builtin_overload function. 1161 // SubExpr[0] is a constant expression 1162 // SubExpr[1-N] are the parameters to pass to the matching function call 1163 // SubExpr[N-...] are the candidate functions, of type pointer to function. 1164 Expr **SubExprs; 1165 1166 // NumExprs - the size of the SubExprs array 1167 unsigned NumExprs; 1168 1169 // The index of the matching candidate function 1170 unsigned FnIndex; 1171 1172 SourceLocation BuiltinLoc; 1173 SourceLocation RParenLoc; 1174public: 1175 OverloadExpr(Expr **args, unsigned nexprs, unsigned idx, QualType t, 1176 SourceLocation bloc, SourceLocation rploc) 1177 : Expr(OverloadExprClass, t), NumExprs(nexprs), FnIndex(idx), 1178 BuiltinLoc(bloc), RParenLoc(rploc) { 1179 SubExprs = new Expr*[nexprs]; 1180 for (unsigned i = 0; i != nexprs; ++i) 1181 SubExprs[i] = args[i]; 1182 } 1183 ~OverloadExpr() { 1184 delete [] SubExprs; 1185 } 1186 1187 /// arg_begin - Return a pointer to the list of arguments that will be passed 1188 /// to the matching candidate function, skipping over the initial constant 1189 /// expression. 1190 typedef Expr * const *arg_const_iterator; 1191 arg_const_iterator arg_begin() const { return SubExprs+1; } 1192 1193 /// getNumArgs - Return the number of arguments to pass to the candidate 1194 /// functions. 1195 unsigned getNumArgs(ASTContext &Ctx) const { 1196 llvm::APSInt constEval(32); 1197 (void) SubExprs[0]->isIntegerConstantExpr(constEval, Ctx); 1198 return constEval.getZExtValue(); 1199 } 1200 1201 /// getNumSubExprs - Return the size of the SubExprs array. This includes the 1202 /// constant expression, the actual arguments passed in, and the function 1203 /// pointers. 1204 unsigned getNumSubExprs() const { return NumExprs; } 1205 1206 /// getExpr - Return the Expr at the specified index. 1207 Expr *getExpr(unsigned Index) { 1208 assert((Index < NumExprs) && "Arg access out of range!"); 1209 return SubExprs[Index]; 1210 } 1211 1212 /// getFn - Return the matching candidate function for this OverloadExpr. 1213 Expr *getFn() const { return SubExprs[FnIndex]; } 1214 1215 virtual SourceRange getSourceRange() const { 1216 return SourceRange(BuiltinLoc, RParenLoc); 1217 } 1218 static bool classof(const Stmt *T) { 1219 return T->getStmtClass() == OverloadExprClass; 1220 } 1221 static bool classof(const OverloadExpr *) { return true; } 1222 1223 // Iterators 1224 virtual child_iterator child_begin(); 1225 virtual child_iterator child_end(); 1226}; 1227 1228/// VAArgExpr, used for the builtin function __builtin_va_start. 1229class VAArgExpr : public Expr { 1230 Expr *Val; 1231 SourceLocation BuiltinLoc, RParenLoc; 1232public: 1233 VAArgExpr(SourceLocation BLoc, Expr* e, QualType t, SourceLocation RPLoc) 1234 : Expr(VAArgExprClass, t), 1235 Val(e), 1236 BuiltinLoc(BLoc), 1237 RParenLoc(RPLoc) { } 1238 1239 const Expr *getSubExpr() const { return Val; } 1240 Expr *getSubExpr() { return Val; } 1241 virtual SourceRange getSourceRange() const { 1242 return SourceRange(BuiltinLoc, RParenLoc); 1243 } 1244 static bool classof(const Stmt *T) { 1245 return T->getStmtClass() == VAArgExprClass; 1246 } 1247 static bool classof(const VAArgExpr *) { return true; } 1248 1249 // Iterators 1250 virtual child_iterator child_begin(); 1251 virtual child_iterator child_end(); 1252}; 1253 1254/// InitListExpr - used for struct and array initializers, such as: 1255/// struct foo x = { 1, { 2, 3 } }; 1256/// 1257/// Because C is somewhat loose with braces, the AST does not necessarily 1258/// directly model the C source. Instead, the semantic analyzer aims to make 1259/// the InitListExprs match up with the type of the decl being initialized. We 1260/// have the following exceptions: 1261/// 1262/// 1. Elements at the end of the list may be dropped from the initializer. 1263/// These elements are defined to be initialized to zero. For example: 1264/// int x[20] = { 1 }; 1265/// 2. Initializers may have excess initializers which are to be ignored by the 1266/// compiler. For example: 1267/// int x[1] = { 1, 2 }; 1268/// 3. Redundant InitListExprs may be present around scalar elements. These 1269/// always have a single element whose type is the same as the InitListExpr. 1270/// this can only happen for Type::isScalarType() types. 1271/// int x = { 1 }; int y[2] = { {1}, {2} }; 1272/// 1273class InitListExpr : public Expr { 1274 std::vector<Expr *> InitExprs; 1275 SourceLocation LBraceLoc, RBraceLoc; 1276public: 1277 InitListExpr(SourceLocation lbraceloc, Expr **initexprs, unsigned numinits, 1278 SourceLocation rbraceloc); 1279 1280 unsigned getNumInits() const { return InitExprs.size(); } 1281 1282 const Expr* getInit(unsigned Init) const { 1283 assert(Init < getNumInits() && "Initializer access out of range!"); 1284 return InitExprs[Init]; 1285 } 1286 1287 Expr* getInit(unsigned Init) { 1288 assert(Init < getNumInits() && "Initializer access out of range!"); 1289 return InitExprs[Init]; 1290 } 1291 1292 void setInit(unsigned Init, Expr *expr) { 1293 assert(Init < getNumInits() && "Initializer access out of range!"); 1294 InitExprs[Init] = expr; 1295 } 1296 1297 // Dynamic removal/addition (for constructing implicit InitExpr's). 1298 void removeInit(unsigned Init) { 1299 InitExprs.erase(InitExprs.begin()+Init); 1300 } 1301 void addInit(unsigned Init, Expr *expr) { 1302 InitExprs.insert(InitExprs.begin()+Init, expr); 1303 } 1304 1305 // Explicit InitListExpr's originate from source code (and have valid source 1306 // locations). Implicit InitListExpr's are created by the semantic analyzer. 1307 bool isExplicit() { 1308 return LBraceLoc.isValid() && RBraceLoc.isValid(); 1309 } 1310 1311 virtual SourceRange getSourceRange() const { 1312 return SourceRange(LBraceLoc, RBraceLoc); 1313 } 1314 static bool classof(const Stmt *T) { 1315 return T->getStmtClass() == InitListExprClass; 1316 } 1317 static bool classof(const InitListExpr *) { return true; } 1318 1319 // Iterators 1320 virtual child_iterator child_begin(); 1321 virtual child_iterator child_end(); 1322 1323 virtual void EmitImpl(llvm::Serializer& S) const; 1324 static InitListExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1325 1326private: 1327 // Used by serializer. 1328 InitListExpr() : Expr(InitListExprClass, QualType()) {} 1329}; 1330 1331/// ObjCStringLiteral, used for Objective-C string literals 1332/// i.e. @"foo". 1333class ObjCStringLiteral : public Expr { 1334 StringLiteral *String; 1335 SourceLocation AtLoc; 1336public: 1337 ObjCStringLiteral(StringLiteral *SL, QualType T, SourceLocation L) 1338 : Expr(ObjCStringLiteralClass, T), String(SL), AtLoc(L) {} 1339 1340 StringLiteral* getString() { return String; } 1341 1342 const StringLiteral* getString() const { return String; } 1343 1344 SourceLocation getAtLoc() const { return AtLoc; } 1345 1346 virtual SourceRange getSourceRange() const { 1347 return SourceRange(AtLoc, String->getLocEnd()); 1348 } 1349 1350 static bool classof(const Stmt *T) { 1351 return T->getStmtClass() == ObjCStringLiteralClass; 1352 } 1353 static bool classof(const ObjCStringLiteral *) { return true; } 1354 1355 // Iterators 1356 virtual child_iterator child_begin(); 1357 virtual child_iterator child_end(); 1358 1359 virtual void EmitImpl(llvm::Serializer& S) const; 1360 static ObjCStringLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1361}; 1362 1363/// ObjCEncodeExpr, used for @encode in Objective-C. 1364class ObjCEncodeExpr : public Expr { 1365 QualType EncType; 1366 SourceLocation AtLoc, RParenLoc; 1367public: 1368 ObjCEncodeExpr(QualType T, QualType ET, 1369 SourceLocation at, SourceLocation rp) 1370 : Expr(ObjCEncodeExprClass, T), EncType(ET), AtLoc(at), RParenLoc(rp) {} 1371 1372 SourceLocation getAtLoc() const { return AtLoc; } 1373 SourceLocation getRParenLoc() const { return RParenLoc; } 1374 1375 virtual SourceRange getSourceRange() const { 1376 return SourceRange(AtLoc, RParenLoc); 1377 } 1378 1379 QualType getEncodedType() const { return EncType; } 1380 1381 static bool classof(const Stmt *T) { 1382 return T->getStmtClass() == ObjCEncodeExprClass; 1383 } 1384 static bool classof(const ObjCEncodeExpr *) { return true; } 1385 1386 // Iterators 1387 virtual child_iterator child_begin(); 1388 virtual child_iterator child_end(); 1389 1390 virtual void EmitImpl(llvm::Serializer& S) const; 1391 static ObjCEncodeExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1392}; 1393 1394/// ObjCSelectorExpr used for @selector in Objective-C. 1395class ObjCSelectorExpr : public Expr { 1396 Selector SelName; 1397 SourceLocation AtLoc, RParenLoc; 1398public: 1399 ObjCSelectorExpr(QualType T, Selector selInfo, 1400 SourceLocation at, SourceLocation rp) 1401 : Expr(ObjCSelectorExprClass, T), SelName(selInfo), 1402 AtLoc(at), RParenLoc(rp) {} 1403 1404 Selector getSelector() const { return SelName; } 1405 1406 SourceLocation getAtLoc() const { return AtLoc; } 1407 SourceLocation getRParenLoc() const { return RParenLoc; } 1408 1409 virtual SourceRange getSourceRange() const { 1410 return SourceRange(AtLoc, RParenLoc); 1411 } 1412 1413 /// getNumArgs - Return the number of actual arguments to this call. 1414 unsigned getNumArgs() const { return SelName.getNumArgs(); } 1415 1416 static bool classof(const Stmt *T) { 1417 return T->getStmtClass() == ObjCSelectorExprClass; 1418 } 1419 static bool classof(const ObjCSelectorExpr *) { return true; } 1420 1421 // Iterators 1422 virtual child_iterator child_begin(); 1423 virtual child_iterator child_end(); 1424 1425 virtual void EmitImpl(llvm::Serializer& S) const; 1426 static ObjCSelectorExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1427}; 1428 1429/// ObjCProtocolExpr used for protocol in Objective-C. 1430class ObjCProtocolExpr : public Expr { 1431 ObjCProtocolDecl *Protocol; 1432 SourceLocation AtLoc, RParenLoc; 1433public: 1434 ObjCProtocolExpr(QualType T, ObjCProtocolDecl *protocol, 1435 SourceLocation at, SourceLocation rp) 1436 : Expr(ObjCProtocolExprClass, T), Protocol(protocol), 1437 AtLoc(at), RParenLoc(rp) {} 1438 1439 ObjCProtocolDecl *getProtocol() const { return Protocol; } 1440 1441 SourceLocation getAtLoc() const { return AtLoc; } 1442 SourceLocation getRParenLoc() const { return RParenLoc; } 1443 1444 virtual SourceRange getSourceRange() const { 1445 return SourceRange(AtLoc, RParenLoc); 1446 } 1447 1448 static bool classof(const Stmt *T) { 1449 return T->getStmtClass() == ObjCProtocolExprClass; 1450 } 1451 static bool classof(const ObjCProtocolExpr *) { return true; } 1452 1453 // Iterators 1454 virtual child_iterator child_begin(); 1455 virtual child_iterator child_end(); 1456}; 1457 1458/// ObjCIvarRefExpr - A reference to an ObjC instance variable. 1459class ObjCIvarRefExpr : public Expr { 1460 class ObjCIvarDecl *D; 1461 SourceLocation Loc; 1462 Expr *Base; 1463 bool IsArrow:1; // True if this is "X->F", false if this is "X.F". 1464 bool IsFreeIvar:1; // True if ivar reference has no base (self assumed). 1465 1466public: 1467 ObjCIvarRefExpr(ObjCIvarDecl *d, QualType t, SourceLocation l, Expr *base=0, 1468 bool arrow = false, bool freeIvar = false) : 1469 Expr(ObjCIvarRefExprClass, t), D(d), Loc(l), Base(base), IsArrow(arrow), 1470 IsFreeIvar(freeIvar) {} 1471 1472 ObjCIvarDecl *getDecl() { return D; } 1473 const ObjCIvarDecl *getDecl() const { return D; } 1474 virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 1475 const Expr *getBase() const { return Base; } 1476 Expr *getBase() { return Base; } 1477 void setBase(Expr * base) { Base = base; } 1478 bool isArrow() const { return IsArrow; } 1479 bool isFreeIvar() const { return IsFreeIvar; } 1480 1481 SourceLocation getLocation() const { return Loc; } 1482 1483 static bool classof(const Stmt *T) { 1484 return T->getStmtClass() == ObjCIvarRefExprClass; 1485 } 1486 static bool classof(const ObjCIvarRefExpr *) { return true; } 1487 1488 // Iterators 1489 virtual child_iterator child_begin(); 1490 virtual child_iterator child_end(); 1491 1492 virtual void EmitImpl(llvm::Serializer& S) const; 1493 static ObjCIvarRefExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1494}; 1495 1496class ObjCMessageExpr : public Expr { 1497 enum { RECEIVER=0, ARGS_START=1 }; 1498 1499 Expr **SubExprs; 1500 1501 unsigned NumArgs; 1502 1503 // A unigue name for this message. 1504 Selector SelName; 1505 1506 // A method prototype for this message (optional). 1507 // FIXME: Since method decls contain the selector, and most messages have a 1508 // prototype, consider devising a scheme for unifying SelName/MethodProto. 1509 ObjCMethodDecl *MethodProto; 1510 1511 SourceLocation LBracloc, RBracloc; 1512 1513 // constructor used during deserialization 1514 ObjCMessageExpr(Selector selInfo, QualType retType, 1515 SourceLocation LBrac, SourceLocation RBrac, 1516 Expr **ArgExprs, unsigned nargs) 1517 : Expr(ObjCMessageExprClass, retType), NumArgs(nargs), SelName(selInfo), 1518 MethodProto(NULL), LBracloc(LBrac), RBracloc(RBrac) {} 1519 1520public: 1521 // constructor for class messages. 1522 // FIXME: clsName should be typed to ObjCInterfaceType 1523 ObjCMessageExpr(IdentifierInfo *clsName, Selector selInfo, 1524 QualType retType, ObjCMethodDecl *methDecl, 1525 SourceLocation LBrac, SourceLocation RBrac, 1526 Expr **ArgExprs, unsigned NumArgs); 1527 // constructor for instance messages. 1528 ObjCMessageExpr(Expr *receiver, Selector selInfo, 1529 QualType retType, ObjCMethodDecl *methDecl, 1530 SourceLocation LBrac, SourceLocation RBrac, 1531 Expr **ArgExprs, unsigned NumArgs); 1532 1533 ~ObjCMessageExpr() { 1534 delete [] SubExprs; 1535 } 1536 1537 /// getReceiver - Returns the receiver of the message expression. 1538 /// This can be NULL if the message is for instance methods. For 1539 /// instance methods, use getClassName. 1540 Expr *getReceiver() { 1541 uintptr_t x = (uintptr_t) SubExprs[RECEIVER]; 1542 return x & 0x1 ? NULL : (Expr*) x; 1543 } 1544 const Expr *getReceiver() const { 1545 return const_cast<ObjCMessageExpr*>(this)->getReceiver(); 1546 } 1547 1548 Selector getSelector() const { return SelName; } 1549 1550 const ObjCMethodDecl *getMethodDecl() const { return MethodProto; } 1551 ObjCMethodDecl *getMethodDecl() { return MethodProto; } 1552 1553 /// getClassName - For instance methods, this returns the invoked class, 1554 /// and returns NULL otherwise. For regular methods, use getReceiver. 1555 IdentifierInfo *getClassName() { 1556 uintptr_t x = (uintptr_t) SubExprs[RECEIVER]; 1557 return x & 0x1 ? (IdentifierInfo*) (x & ~0x1) : NULL; 1558 } 1559 const IdentifierInfo *getClassName() const { 1560 return const_cast<ObjCMessageExpr*>(this)->getClassName(); 1561 } 1562 1563 /// getNumArgs - Return the number of actual arguments to this call. 1564 unsigned getNumArgs() const { return NumArgs; } 1565 1566 /// getArg - Return the specified argument. 1567 Expr *getArg(unsigned Arg) { 1568 assert(Arg < NumArgs && "Arg access out of range!"); 1569 return SubExprs[Arg+ARGS_START]; 1570 } 1571 const Expr *getArg(unsigned Arg) const { 1572 assert(Arg < NumArgs && "Arg access out of range!"); 1573 return SubExprs[Arg+ARGS_START]; 1574 } 1575 /// setArg - Set the specified argument. 1576 void setArg(unsigned Arg, Expr *ArgExpr) { 1577 assert(Arg < NumArgs && "Arg access out of range!"); 1578 SubExprs[Arg+ARGS_START] = ArgExpr; 1579 } 1580 1581 virtual SourceRange getSourceRange() const { 1582 return SourceRange(LBracloc, RBracloc); 1583 } 1584 1585 static bool classof(const Stmt *T) { 1586 return T->getStmtClass() == ObjCMessageExprClass; 1587 } 1588 static bool classof(const ObjCMessageExpr *) { return true; } 1589 1590 // Iterators 1591 virtual child_iterator child_begin(); 1592 virtual child_iterator child_end(); 1593 1594 typedef Expr** arg_iterator; 1595 typedef const Expr* const* const_arg_iterator; 1596 1597 arg_iterator arg_begin() { return &SubExprs[ARGS_START]; } 1598 arg_iterator arg_end() { return arg_begin() + NumArgs; } 1599 const_arg_iterator arg_begin() const { return &SubExprs[ARGS_START]; } 1600 const_arg_iterator arg_end() const { return arg_begin() + NumArgs; } 1601 1602 // Serialization. 1603 virtual void EmitImpl(llvm::Serializer& S) const; 1604 static ObjCMessageExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1605}; 1606 1607} // end namespace clang 1608 1609#endif 1610