// This may look like C, but it's really -*- C++ -*-
// $Id: ast_argument.h 78883 2007-07-13 17:55:30Z ossama $
/*

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*/

#ifndef _AST_ARGUMENT_AST_ARGUMENT_HH
#define _AST_ARGUMENT_AST_ARGUMENT_HH

// Representation of argument to operation:
// An argument is a field with a direction attached

#include "ast_field.h"


class TAO_IDL_FE_Export AST_Argument : public virtual AST_Field
{
public:
  // Define enum with values denoting argument passing directions.
  enum Direction
    {
      dir_IN    = 0x01,
      dir_OUT   = 0x02,
      dir_INOUT = 0x04
    };

  // Operations.

  // Constructor(s).
  AST_Argument (void);

  AST_Argument (Direction direction,
                AST_Type *ft,
                UTL_ScopedName *n);

  // Destructor.
  virtual ~AST_Argument (void);

  // Data Accessors.
  Direction direction (void);

  // Narrowing

  DEF_NARROW_FROM_DECL(AST_Argument);

  // AST Dumping.
  virtual void dump (ACE_OSTREAM_TYPE &o);

  // Visiting.
  virtual int ast_accept (ast_visitor *visitor);
  
  // Cleanup.
  virtual void destroy (void);

private:
  // Data.

  const Direction pd_direction;
  // Argument direction
};

#endif           // _AST_ARGUMENT_AST_ARGUMENT_HH
