// $Id: ast_attribute.cpp 78883 2007-07-13 17:55:30Z ossama $

/*

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*/

// AST_Attribute nodes denote IDL attribute declarations.
// AST_Attribute nodes are AST_Fields with a readonly indication.
// Hence they have a name (an UTL_ScopedName), a type (a subtype
// of AST_Type) and a boolean indicating whether the attribute is
// readonly.

#include "ast_attribute.h"
#include "ast_exception.h"
#include "ast_visitor.h"
#include "utl_namelist.h"
#include "utl_exceptlist.h"
#include "utl_scope.h"
#include "utl_err.h"
#include "global_extern.h"

ACE_RCSID (ast,
           ast_attribute,
           "$Id: ast_attribute.cpp 78883 2007-07-13 17:55:30Z ossama $")

// Constructor(s) and destructor.
AST_Attribute::AST_Attribute (void)
  : COMMON_Base (),
    AST_Decl (),
    AST_Field (),
    pd_readonly (true),
    pd_get_exceptions (0),
    pd_set_exceptions (0)
{
}

AST_Attribute::AST_Attribute (bool ro,
                              AST_Type *ft,
                              UTL_ScopedName *n,
                              bool local,
                              bool abstract)
  : COMMON_Base (local,
                 abstract),
    AST_Decl (AST_Decl::NT_attr,
              n),
    AST_Field (AST_Decl::NT_attr,
               ft,
               n),
    pd_readonly (ro),
    pd_get_exceptions (0),
    pd_set_exceptions (0)
{
}

AST_Attribute::~AST_Attribute (void)
{
}

// Redefinition of inherited virtual operations.

// Dump this AST_Attribute to the ostream o.
void
AST_Attribute::dump (ACE_OSTREAM_TYPE &o)
{
  this->dump_i (o, (this->pd_readonly == true ?
                    "readonly attribute " : "attribute "));
  AST_Field::dump (o);
}

int
AST_Attribute::ast_accept (ast_visitor *visitor)
{
  return visitor->visit_attribute (this);
}

void
AST_Attribute::destroy (void)
{
  // No need to delete our exception lists, the
  // destroy() method does it. The UTL_ExceptList
  // destroy() method does NOT delete the contained
  // exception nodes.

  if (this->pd_get_exceptions != 0)
    {
      this->pd_get_exceptions->destroy ();
      this->pd_get_exceptions = 0;
    }
  
  if (this->pd_set_exceptions != 0)
    {
      this->pd_set_exceptions->destroy ();
      this->pd_set_exceptions = 0;
    }

  this->AST_Field::destroy ();
}

UTL_ExceptList *
AST_Attribute::be_add_get_exceptions (UTL_ExceptList *t)
{
  if (this->pd_get_exceptions != 0)
    {
      idl_global->err ()->error1 (UTL_Error::EIDL_ILLEGAL_RAISES,
                                  this);
    }
  else
    {
      this->pd_get_exceptions = t;
    }

  return this->pd_get_exceptions;
}

UTL_ExceptList *
AST_Attribute::be_add_set_exceptions (UTL_ExceptList *t)
{
  if (this->pd_set_exceptions != 0)
    {
      idl_global->err ()->error1 (UTL_Error::EIDL_ILLEGAL_RAISES,
                                  this);
    }
  else
    {
      this->pd_set_exceptions = t;
    }

  return this->pd_set_exceptions;
}

// Data accessors.

bool
AST_Attribute::readonly (void) const
{
  return this->pd_readonly;
}

UTL_ExceptList *
AST_Attribute::get_get_exceptions (void) const
{
  return this->pd_get_exceptions;
}

UTL_ExceptList *
AST_Attribute::get_set_exceptions (void) const
{
  return this->pd_set_exceptions;
}

// NOTE: No attempt is made to ensure that exceptions are mentioned
//       only once..
UTL_NameList *
AST_Attribute::fe_add_get_exceptions (UTL_NameList *t)
{
  UTL_ScopedName *nl_n = 0;
  AST_Exception *fe = 0;
  AST_Decl *d = 0;

  this->pd_get_exceptions = 0;

  for (UTL_NamelistActiveIterator nl_i (t); !nl_i.is_done (); nl_i.next ())
    {
      nl_n = nl_i.item ();

      d = this->defined_in ()->lookup_by_name (nl_n,
                                               true);

      if (d == 0 || d->node_type() != AST_Decl::NT_except)
        {
          idl_global->err ()->lookup_error (nl_n);
          return 0;
        }

      fe = AST_Exception::narrow_from_decl (d);

      if (fe == 0)
        {
          idl_global->err ()->error1 (UTL_Error::EIDL_ILLEGAL_RAISES,
                                       this);
          return 0;
        }

      if (this->pd_get_exceptions == 0)
        {
          ACE_NEW_RETURN (this->pd_get_exceptions,
                          UTL_ExceptList (fe,
                                          0),
                          0);
        }
      else
        {
          UTL_ExceptList *el = 0;
          ACE_NEW_RETURN (el,
                          UTL_ExceptList (fe,
                                          0),
                          0);

          this->pd_get_exceptions->nconc (el);
        }
    }

  return t;
}

// NOTE: No attempt is made to ensure that exceptions are mentioned
//       only once..
UTL_NameList *
AST_Attribute::fe_add_set_exceptions (UTL_NameList *t)
{
  UTL_ScopedName *nl_n = 0;
  AST_Exception *fe = 0;
  AST_Decl *d = 0;

  this->pd_set_exceptions = 0;

  for (UTL_NamelistActiveIterator nl_i (t); !nl_i.is_done (); nl_i.next ())
    {
      nl_n = nl_i.item ();

      d = this->defined_in ()->lookup_by_name (nl_n,
                                               true);

      if (d == 0 || d->node_type() != AST_Decl::NT_except)
        {
          idl_global->err ()->lookup_error (nl_n);
          return 0;
        }

      fe = AST_Exception::narrow_from_decl (d);

      if (fe == 0)
        {
          idl_global->err ()->error1 (UTL_Error::EIDL_ILLEGAL_RAISES,
                                       this);
          return 0;
        }

      if (this->pd_set_exceptions == 0)
        {
          ACE_NEW_RETURN (this->pd_set_exceptions,
                          UTL_ExceptList (fe,
                                          0),
                          0);
        }
      else
        {
          UTL_ExceptList *el = 0;
          ACE_NEW_RETURN (el,
                          UTL_ExceptList (fe,
                                          0),
                          0);

          this->pd_set_exceptions->nconc (el);
        }
    }

  return t;
}



IMPL_NARROW_FROM_DECL(AST_Attribute)
