// -*- C++ -*-
// $Id: ast_field.h 89076 2010-02-18 22:54:36Z parsons $
/*

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*/

#ifndef _AST_FIELD_AST_FIELD_HH
#define _AST_FIELD_AST_FIELD_HH

// Representation of a generic field.

// Used as member in structures, exceptions and unions, and as a base
// type for attributes and arguments to operations
//
// NOTE: There are two constructors here, the first is used when field
// is used directly inside a structure, the second when it is used as
// the base type for attributes and operations.

#include "ast_decl.h"
#include "utl_scoped_name.h"

class AST_Type;

class TAO_IDL_FE_Export AST_Field : public virtual AST_Decl
{
public:
  enum Visibility
    {
      vis_NA,
      vis_PUBLIC,
      vis_PRIVATE
    };

  AST_Field (AST_Type *field_type,
             UTL_ScopedName *n,
             Visibility vis = vis_NA);

  AST_Field (AST_Decl::NodeType nt,
             AST_Type *field_type,
             UTL_ScopedName *n,
             Visibility vis = vis_NA);

  virtual ~AST_Field (void);

  // Data Accessors.
  AST_Type *field_type (void) const;
  Visibility visibility (void) const;

  // Are we or do we contain a wstring?
  virtual int contains_wstring (void);

  // Determine this bit of state after we have
  // be added to our aggregate type and before
  // we are destroyed.
  void set_recursive_flag (void);

  // Narrowing.

  DEF_NARROW_FROM_DECL (AST_Field);

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

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

  static AST_Decl::NodeType const NT;

protected:
  // Data.

  AST_Type *ref_type_;
  // Base type for field.

  Visibility visibility_;
  // Used with valuetype and eventtype fields.
  
  bool owns_base_type_;
  // If our field type is anonymous array or sequence, we're
  // responsible for destroying it.
};

#endif           // _AST_FIELD_AST_FIELD_HH
