path: root/include/clang/AST/ExprCXX.h

//===--- ExprCXX.h - Classes for representing expressions -------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//  This file defines the Expr interface and subclasses for C++ expressions.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_AST_EXPRCXX_H
#define LLVM_CLANG_AST_EXPRCXX_H

#include "clang/Basic/TypeTraits.h"
#include "clang/AST/Expr.h"
#include "clang/AST/Decl.h"

namespace clang {

  class CXXConstructorDecl;
  class CXXDestructorDecl;
  class CXXTemporary;

//===--------------------------------------------------------------------===//
// C++ Expressions.
//===--------------------------------------------------------------------===//

/// \brief A call to an overloaded operator written using operator
/// syntax.
///
/// Represents a call to an overloaded operator written using operator
/// syntax, e.g., "x + y" or "*p". While semantically equivalent to a
/// normal call, this AST node provides better information about the
/// syntactic representation of the call.
///
/// In a C++ template, this expression node kind will be used whenever
/// any of the arguments are type-dependent. In this case, the
/// function itself will be a (possibly empty) set of functions and
/// function templates that were found by name lookup at template
/// definition time.
class CXXOperatorCallExpr : public CallExpr {
  /// \brief The overloaded operator.
  OverloadedOperatorKind Operator;

public:
  CXXOperatorCallExpr(ASTContext& C, OverloadedOperatorKind Op, Expr *fn, 
                      Expr **args, unsigned numargs, QualType t, 
                      SourceLocation operatorloc)
    : CallExpr(C, CXXOperatorCallExprClass, fn, args, numargs, t, operatorloc),
      Operator(Op) {}

  /// getOperator - Returns the kind of overloaded operator that this
  /// expression refers to.
  OverloadedOperatorKind getOperator() const { return Operator; }

  /// getOperatorLoc - Returns the location of the operator symbol in
  /// the expression. When @c getOperator()==OO_Call, this is the
  /// location of the right parentheses; when @c
  /// getOperator()==OO_Subscript, this is the location of the right
  /// bracket.
  SourceLocation getOperatorLoc() const { return getRParenLoc(); }

  virtual SourceRange getSourceRange() const;
  
  static bool classof(const Stmt *T) { 
    return T->getStmtClass() == CXXOperatorCallExprClass; 
  }
  static bool classof(const CXXOperatorCallExpr *) { return true; }
};

/// CXXMemberCallExpr - Represents a call to a member function that
/// may be written either with member call syntax (e.g., "obj.func()"
/// or "objptr->func()") or with normal function-call syntax
/// ("func()") within a member function that ends up calling a member
/// function. The callee in either case is a MemberExpr that contains
/// both the object argument and the member function, while the
/// arguments are the arguments within the parentheses (not including
/// the object argument).
class CXXMemberCallExpr : public CallExpr {
public:
  CXXMemberCallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs,
                    QualType