Beispiel #1
0
// Compute total number of members.
int
AST_Operation::compute_argument_attr (void)
{
  if (this->argument_count_ != -1)
    {
      return 0;
    }

  AST_Decl *d = 0;
  AST_Type *type = 0;
  AST_Argument *arg = 0;

  this->argument_count_ = 0;

  // If there are elements in this scope.
  if (this->nmembers () > 0)
    {
      // Instantiate a scope iterator.
      for (UTL_ScopeActiveIterator si (this, UTL_Scope::IK_decls);
           !si.is_done ();
           si.next ())
        {
          // Get the next AST decl node.
          d = si.item ();

          if (d->node_type () == AST_Decl::NT_argument)
            {
              this->argument_count_++;

              arg = AST_Argument::narrow_from_decl (d);

              if (arg->direction() == AST_Argument::dir_IN ||
                  arg->direction() == AST_Argument::dir_INOUT)
                {
                  this->has_in_arguments_ = true;
                }


              type = AST_Type::narrow_from_decl (arg->field_type ());

              if (type->node_type () == AST_Decl::NT_native)
                {
                  this->has_native_ = 1;
                }
            }
        }
    }

  type = AST_Type::narrow_from_decl (this->return_type ());

  if (type->node_type () == AST_Decl::NT_native)
    {
      this->has_native_ = 1;
    }

  return 0;
}
Beispiel #2
0
// Compute total number of members.
int
AST_Factory::compute_argument_attr (void)
{
  if (this->argument_count_ != -1)
    {
      return 0;
    }

  AST_Decl *d = 0;
  AST_Type *type = 0;
  AST_Argument *arg = 0;

  this->argument_count_ = 0;

  // If there are elements in this scope.
  if (this->nmembers () > 0)
    {
      for (UTL_ScopeActiveIterator i (this, IK_decls);
           !i.is_done ();
           i.next ())
        {
          // Get the next AST decl node.
          d = i.item ();

          if (d->node_type () == AST_Decl::NT_argument)
            {
              this->argument_count_++;

              arg = AST_Argument::narrow_from_decl (d);

              type = AST_Type::narrow_from_decl (arg->field_type ());

              if (type->node_type () == AST_Decl::NT_native)
                {
                  this->has_native_ = 1;
                }
            }
        }
    }

  return 0;
}
Beispiel #3
0
int
AST_Operation::count_arguments_with_direction (int direction_mask)
{
  int count = 0;

  for (UTL_ScopeActiveIterator si (this, UTL_Scope::IK_decls);
       !si.is_done ();
       si.next ())
    {
      AST_Argument *arg =
        AST_Argument::narrow_from_decl (si.item ());

      if ((arg->direction () & direction_mask) != 0)
        {
          ++count;
        }
    }

  return count;
}
Beispiel #4
0
int be_visitor_operation_tie_ss::visit_operation (be_operation *node)
{
  /// These implied IDL operations are not to be processed on
  /// the skeleton side.
  if (node->is_sendc_ami ())
    {
      return 0;
    }

  TAO_OutStream *os = this->ctx_->stream ();

  be_interface *intf = this->ctx_->interface ();

  if (!intf)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "be_visitor_operation_tie_ss::"
                         "visit_operation - "
                         "bad interface scope\n"),
                        -1);
    }

  // Retrieve the operation return type.
  be_type *bt = be_type::narrow_from_decl (node->return_type ());

  if (!bt)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_operation_tie_ss::"
                         "visit_operation - "
                         "Bad return type\n"),
                        -1);
    }

  // Although unlikely it is possible that the 'T' in 'template class<T>' will
  // conflict with an argument name...
  ACE_CString template_name ("T");
  bool template_name_ok = false;

  while (!template_name_ok)
    {
      template_name_ok = true;

      for (UTL_ScopeActiveIterator si (node, UTL_Scope::IK_decls);
          ! si.is_done () && template_name_ok;
          si.next ())
        {
          // Check for conflicts between the arg name and the proposed template
          // class identifier
          AST_Argument *arg =
            AST_Argument::narrow_from_decl (si.item ());

          if (! ACE_OS::strcmp (arg->local_name ()->get_string (),
                                template_name.c_str ()))
            {
              // clash !
              template_name_ok = false;
            }
        }

      if (! template_name_ok)
        {
          // We had a clash - postfix an underscore and try again
          template_name += "_";
        }
    }

  *os << be_nl_2 << "// TAO_IDL - Generated from" << be_nl
      << "// " << __FILE__ << ":" << __LINE__ << be_nl_2;

  *os << "template <class " << template_name.c_str () << ">" << be_nl;

  // Generate the return type mapping (same as in the header file).
  be_visitor_context ctx (*this->ctx_);
  be_visitor_operation_rettype oro_visitor (&ctx);

  if (bt->accept (&oro_visitor) == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_operation_tie_ss::"
                         "visit_operation - "
                         "codegen for return type failed\n"),
                        -1);
    }

  *os << " " << intf->full_skel_name () << "_tie<"
      << template_name.c_str () << ">::"
      << this->ctx_->port_prefix ().c_str ()
      << node->local_name () << " ";

  // STEP 4: generate the argument list with the appropriate mapping (same as
  // in the header file)
  ctx = *this->ctx_;
  be_visitor_operation_arglist oao_visitor (&ctx);

  if (node->accept (&oao_visitor) == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_operation_cs::"
                         "visit_operation - "
                         "codegen for argument list failed\n"),
                        -1);
    }

  *os << be_nl << "{" << be_idt_nl;

  be_predefined_type *pdt = be_predefined_type::narrow_from_decl (bt);

  if (pdt == 0 || pdt->pt () != AST_PredefinedType::PT_void)
    {
      *os << "return ";
    }

  *os << "this->ptr_->" << node->local_name () << " (" << be_idt;

  ctx = *this->ctx_;
  ctx.state (TAO_CodeGen::TAO_OPERATION_COLLOCATED_ARG_UPCALL_SS);
  be_visitor_operation_argument ocau_visitor (&ctx);

  if (node->accept (&ocau_visitor) == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_operation_ss::"
                         "visit_operation - "
                         "codegen for making upcall failed\n"),
                        -1);
    }

  *os << be_uidt_nl;
  *os << ");" << be_uidt_nl;
  *os << "}";

  return 0;
}
Beispiel #5
0
int
be_visitor_operation_direct_proxy_impl_ss::gen_invoke (
    be_visitor_context & /*ctx*/,
    be_operation *node
  )
{
  TAO_OutStream *os = this->ctx_->stream ();

  *os << "->" << node->local_name () << " ("
      << be_idt << be_idt << be_idt;

  UTL_ScopeActiveIterator si (node,
                              UTL_Scope::IK_decls);

  if (si.is_done ())
    {
      *os << be_uidt_nl
          << ");";

      return 0;
    }

  AST_Argument *arg = 0;
  int index = 1;

  for (; !si.is_done (); si.next (), ++index)
    {
      arg = AST_Argument::narrow_from_decl (si.item ());

      *os << (index == 1 ? "" : ",") << be_nl
          << "((TAO::Arg_Traits< ";

      this->gen_arg_template_param_name (arg,
                                         arg->field_type (),
                                         os);

      *os << ">::";

      switch (arg->direction ())
        {
          case AST_Argument::dir_IN:
            *os << "in";
            break;
          case AST_Argument::dir_INOUT:
            *os << "inout";
            break;
          case AST_Argument::dir_OUT:
            *os << "out";
          default:
            break;
        }

      *os << "_arg_val *) args[" << index << "])->arg ()";
    }

  // End the upcall
  *os << be_uidt_nl
      << ");";

  return 0;
}
Beispiel #6
0
int
be_visitor_operation_ami_cs::visit_operation (be_operation *node)
{
  // No sendc method for oneway operations.
  if (node->flags () == AST_Operation::OP_oneway)
    {
      return 0;
    }

  be_visitor_context ctx;
  TAO_OutStream *os = this->ctx_->stream ();
  this->ctx_->node (node);

  *os << be_nl_2 << "// TAO_IDL - Generated from" << be_nl
      << "// " << __FILE__ << ":" << __LINE__;

  // Generate the return type mapping. Return type is simply void.
  *os << be_nl_2
      << "void" << be_nl;

  // Generate the operation name.

  // Grab the scope name.
  be_decl *parent =
    be_scope::narrow_from_scope (node->defined_in ())->decl ();

  if (parent == 0)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_operation_ami_cs::"
                         "visit_operation - "
                         "scope name is nil\n"),
                        -1);
    }

  // Generate the scope::operation name.
  *os << parent->full_name ()
      << "::" << this->ctx_->port_prefix ().c_str ()
      << node->local_name ()->get_string ();

  // Generate the argument list with the appropriate mapping (same as
  // in the header file)
  ctx = *this->ctx_;
  be_visitor_operation_arglist oa_visitor (&ctx);

  // Get the AMI version from the strategy class.
  be_operation *ami_op = node;

  if (ami_op->accept (&oa_visitor) == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_operation_ami_cs::"
                         "visit_operation - "
                         "codegen for argument list failed\n"),
                        -1);
    }

  // Generate the actual code for the stub. However, if any of the argument
  // types is "native", we flag a MARSHAL exception.
  // last argument
  *os << be_nl << "{" << be_idt;

  if (node->has_native ()) // native exists => no stub
    {
      be_predefined_type bpt (AST_PredefinedType::PT_void,
                              0);

      int const status = this->gen_raise_exception ("::CORBA::MARSHAL",
                                                    "");

      if (status == -1)
        {
          ACE_ERROR_RETURN ((LM_ERROR,
                             "(%N:%l) be_visitor_operation_ami_cs::"
                             "visit_operation - "
                             "codegen for has-native exception failed\n"),
                            -1);
        }
    }
  else
    {
      *os << be_nl
          << "if (!this->is_evaluated ())" << be_idt_nl
          << "{" << be_idt_nl
          << "::CORBA::Object::tao_object_initialize (this);"
          << be_uidt_nl
          << "}" << be_uidt_nl << be_nl;
    }

  // Includes the reply handler, but we have to add 1 for the retval anyway.
  int nargs = ami_op->argument_count ();

  if (nargs == 1)
    {
      // No arguments other than the reply handler, and the return
      // type is void.  No need to generate argument list.

      *os << be_nl_2
          << "TAO::Argument ** _the_tao_operation_signature = 0;";
      nargs = 0; // Don't count the reply handler.
    }
  else
    {
      *os << be_nl<< be_nl
          << "TAO::Arg_Traits<void>::"
          << (node->flags () == AST_Operation::OP_oneway &&
              be_global->use_clonable_in_args() ? "clonable_" : "")
          << "ret_val _tao_retval;";

      // Declare the argument helper classes.
      this->gen_stub_body_arglist (ami_op, os, true);

      // Assemble the arg helper class pointer array.
      *os << be_nl_2
          << "TAO::Argument *_the_tao_operation_signature[] =" << be_idt_nl
          << "{" << be_idt_nl
          << "&_tao_retval";

      AST_Argument *arg = 0;
      UTL_ScopeActiveIterator arg_list_iter (ami_op,
                                             UTL_Scope::IK_decls);

      // For a sendc_* operation, skip the reply handler (first argument).
      arg_list_iter.next ();

      for (; ! arg_list_iter.is_done (); arg_list_iter.next ())
        {
          arg = AST_Argument::narrow_from_decl (arg_list_iter.item ());

          *os << "," << be_nl
              << "&_tao_" << arg->local_name ();
        }

      *os << be_uidt_nl
          << "};" << be_uidt;
    }

  ACE_CString base (node->local_name ()->get_string ());

  /// The sendc_* operation makes the invocation with the
  /// original operation name.
  ACE_CString lname_str (base.substr (ACE_OS::strlen ("sendc_")));
  const char *lname = lname_str.c_str ();

  ACE_CString opname (node->is_attr_op () ? "_" : "");
  opname += lname;

  /// Some compilers can't resolve the stream operator overload.
  const char *op_name = opname.c_str ();
  ACE_CDR::ULong len = opname.length ();

  *os << be_nl_2
      << "TAO::Asynch_Invocation_Adapter _tao_call (" << be_idt << be_idt_nl
      << "this," << be_nl
      << "_the_tao_operation_signature," << be_nl
      << nargs << "," << be_nl
      << "\"" << op_name << "\"," << be_nl
      << len << "," << be_nl;

  *os << "TAO::TAO_CO_NONE";
  if (be_global->gen_direct_collocation())
    {
      *os << " | TAO::TAO_CO_DIRECT_STRATEGY";
    }
  if (be_global->gen_thru_poa_collocation())
    {
      *os << " | TAO::TAO_CO_THRU_POA_STRATEGY";
    }

  *os << be_uidt_nl
      << ");" << be_uidt;

  *os << be_nl_2
      << "_tao_call.invoke (" << be_idt << be_idt_nl
      << "ami_handler," << be_nl
      << "&";

  if (parent->is_nested ())
    {
      be_decl *gparent =
        be_scope::narrow_from_scope (parent->defined_in ())->decl ();

      *os << gparent->name () << "::";
    }

  *os << "AMI_"  << parent->local_name () << "Handler::"
      << lname << "_reply_stub" << be_uidt_nl
      << ");" << be_uidt;

  *os << be_uidt_nl
      << "}";

  return 0;
}
Beispiel #7
0
int
be_visitor_valuetype::visit_attribute (be_attribute *node)
{
  this->ctx_->node (node);
  this->ctx_->attribute (node);

  be_operation get_op (node->field_type (),
                       AST_Operation::OP_noflags,
                       node->name (),
                       0,
                       0);

  get_op.set_name ((UTL_IdList *) node->name ()->copy ());

  if (this->visit_operation (&get_op) == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_attribute::"
                         "visit_attribute - "
                         "codegen for get_attribute failed\n"),
                        -1);
    }

  get_op.destroy ();

  if (node->readonly ())
    {
      // Nothing else to do.
      return 0;
    }

  Identifier id ("void");

  UTL_ScopedName sn (&id,
                     0);

  be_predefined_type rt (AST_PredefinedType::PT_void,
                         &sn);

  // Argument type is the same as the attribute type.
  AST_Argument *arg =
    idl_global->gen ()->create_argument (AST_Argument::dir_IN,
                                         node->field_type (),
                                         node->name ());

  arg->set_name ((UTL_IdList *) node->name ()->copy ());

  // Create the operation.
  be_operation set_op (&rt,
                       AST_Operation::OP_noflags,
                       node->name (),
                       0,
                       0);

  set_op.set_name ((UTL_IdList *) node->name ()->copy ());
  set_op.be_add_argument (arg);

 if (this->visit_operation (&set_op) == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_attribute::"
                         "visit_attribute - "
                         "codegen for set_attribute failed\n"),
                        -1);
    }

  set_op.destroy ();
  rt.destroy ();

  return 0;
}
Beispiel #8
0
int
be_visitor_attribute::visit_attribute (be_attribute *node)
{
    this->ctx_->node (node);
    this->ctx_->attribute (node);

    UTL_Scope *s = node->defined_in ();
    AST_Decl *d = ScopeAsDecl (s);
    ACE_CString op_name (this->ctx_->port_prefix ());
    op_name += node->local_name ()->get_string ();
    Identifier *op_id = 0;
    ACE_NEW_RETURN (op_id,
                    Identifier (op_name.c_str ()),
                    -1);

    UTL_ScopedName *op_ln = 0;
    ACE_NEW_RETURN (op_ln,
                    UTL_ScopedName (op_id, 0),
                    -1);

    UTL_ScopedName *op_sn =
        static_cast<UTL_ScopedName *> (d->name ()->copy ());
    op_sn->nconc (op_ln);

    // first the "get" operation
    be_operation get_op (node->field_type (),
                         AST_Operation::OP_noflags,
                         0,
                         node->is_local (),
                         node->is_abstract ());

    get_op.set_defined_in (s);
    get_op.set_name (op_sn);
    UTL_ExceptList *get_exceptions = node->get_get_exceptions ();

    if (0 != get_exceptions)
    {
        get_op.be_add_exceptions (get_exceptions->copy ());
    }

    be_visitor_context ctx (*this->ctx_);
    int status = 1;

    switch (this->ctx_->state ())
    {
    // These two cases are the only ones that could involve a strategy.
    case TAO_CodeGen::TAO_ROOT_CH:
    case TAO_CodeGen::TAO_INTERFACE_CH:
    {
        ctx.state (TAO_CodeGen::TAO_OPERATION_CH);
        be_visitor_operation_ch visitor (&ctx);
        status = get_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_CS:
    {
        ctx.state (TAO_CodeGen::TAO_OPERATION_CS);
        be_visitor_operation_cs visitor (&ctx);
        status = get_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_SH:
    {
        be_visitor_operation_sh visitor (&ctx);
        status = get_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_IH:
    {
        be_visitor_operation_ih visitor (&ctx);
        status = get_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_SS:
    {
        be_visitor_operation_ss visitor (&ctx);
        status = get_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_IS:
    {
        be_visitor_operation_is visitor (&ctx);
        status = get_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_INTERFACE_DIRECT_PROXY_IMPL_SH:
    {
        be_visitor_operation_proxy_impl_xh visitor (&ctx);
        status = get_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_INTERFACE_DIRECT_PROXY_IMPL_SS:
    {
        be_visitor_operation_direct_proxy_impl_ss visitor (&ctx);
        status = get_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_INTERFACE_SMART_PROXY_CH:
    {
        be_visitor_operation_smart_proxy_ch visitor (&ctx);
        status = get_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_INTERFACE_SMART_PROXY_CS:
    {
        be_visitor_operation_smart_proxy_cs visitor (&ctx);
        status = get_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_TIE_SH:
    {
        be_visitor_operation_tie_sh visitor (&ctx);
        status = get_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_TIE_SS:
    {
        be_visitor_operation_tie_ss visitor (&ctx);
        status = get_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_SVTH:
    case TAO_CodeGen::TAO_ROOT_SVH:
    {
        be_visitor_operation_ch visitor (&ctx);
        status = get_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_SVTS:
    case TAO_CodeGen::TAO_ROOT_SVS:
    {
        be_visitor_operation_svs visitor (&ctx);
        visitor.scope (this->op_scope_);
        status = get_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_EXH:
    {
        be_visitor_operation_ch visitor (&ctx);
        status = get_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_EXS:
    {
        be_visitor_operation_exs visitor (&ctx);
        visitor.scope (this->op_scope_);
        visitor.class_extension (this->exec_class_extension_.c_str ());
        status = get_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_CNH:
    case TAO_CodeGen::TAO_ROOT_CNS:
        break;
    default:
        get_op.destroy ();
        return 0;
    }

    if (status == -1)
    {
        get_op.destroy ();
        ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_visitor_attribute::"
                           "visit_attribute - "
                           "codegen for get_attribute failed\n"),
                          -1);
    }

    // Do nothing for readonly attributes.
    if (node->readonly ())
    {
        get_op.destroy ();
        return 0;
    }

    status = 1;

    // Create the set method.
    Identifier id ("void");
    UTL_ScopedName sn (&id,
                       0);

    // The return type  is "void".
    be_predefined_type rt (AST_PredefinedType::PT_void,
                           &sn);

    // Argument type is the same as the attribute type.
    AST_Argument *arg =
        idl_global->gen ()->create_argument (AST_Argument::dir_IN,
                node->field_type (),
                node->name ());

    arg->set_name ((UTL_IdList *) node->name ()->copy ());

    // Create the operation.
    be_operation set_op (&rt,
                         AST_Operation::OP_noflags,
                         0,
                         node->is_local (),
                         node->is_abstract ());
    set_op.set_defined_in (node->defined_in ());
    set_op.set_name (static_cast<UTL_ScopedName *> (op_sn->copy ()));
    set_op.be_add_argument (arg);

    UTL_ExceptList *set_exceptions = node->get_set_exceptions ();

    if (0 != set_exceptions)
    {
        set_op.be_add_exceptions (set_exceptions->copy ());
    }

    ctx = *this->ctx_;
    status = 1;

    switch (this->ctx_->state ())
    {
    // These two cases are the only ones that could involved a strategy.
    case TAO_CodeGen::TAO_ROOT_CH:
    case TAO_CodeGen::TAO_INTERFACE_CH:
    {
        ctx.state (TAO_CodeGen::TAO_OPERATION_CH);
        be_visitor_operation_ch visitor (&ctx);
        status = set_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_CS:
    {
        ctx.state (TAO_CodeGen::TAO_OPERATION_CS);
        be_visitor_operation_cs visitor (&ctx);
        status = set_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_SH:
    {
        be_visitor_operation_sh visitor (&ctx);
        status = set_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_IH:
    {
        be_visitor_operation_ih visitor (&ctx);
        status = set_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_SS:
    {
        be_visitor_operation_ss visitor (&ctx);
        status = set_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_IS:
    {
        be_visitor_operation_is visitor (&ctx);
        status = set_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_INTERFACE_DIRECT_PROXY_IMPL_SH:
    {
        be_visitor_operation_proxy_impl_xh visitor (&ctx);
        status = set_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_INTERFACE_DIRECT_PROXY_IMPL_SS:
    {
        be_visitor_operation_direct_proxy_impl_ss visitor (&ctx);
        status = set_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_INTERFACE_SMART_PROXY_CH:
    {
        be_visitor_operation_smart_proxy_ch visitor (&ctx);
        status = set_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_INTERFACE_SMART_PROXY_CS:
    {
        be_visitor_operation_smart_proxy_cs visitor (&ctx);
        status = set_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_TIE_SH:
    {
        be_visitor_operation_tie_sh visitor (&ctx);
        status = set_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_TIE_SS:
    {
        be_visitor_operation_tie_ss visitor (&ctx);
        status = set_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_SVTH:
    case TAO_CodeGen::TAO_ROOT_SVH:
    {
        be_visitor_operation_ch visitor (&ctx);
        status = set_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_SVTS:
    case TAO_CodeGen::TAO_ROOT_SVS:
    {
        be_visitor_operation_svs visitor (&ctx);
        visitor.scope (this->op_scope_);
        status = set_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_EXH:
    {
        be_visitor_operation_ch visitor (&ctx);
        status = set_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_EXS:
    {
        be_visitor_operation_exs visitor (&ctx);
        visitor.scope (this->op_scope_);
        visitor.class_extension (this->exec_class_extension_.c_str ());
        status = set_op.accept (&visitor);
        break;
    }
    case TAO_CodeGen::TAO_ROOT_CNH:
    case TAO_CodeGen::TAO_ROOT_CNS:
        break;
    default:
        // Error.
        set_op.destroy ();
        rt.destroy ();
        ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_visitor_attribute::"
                           "visit_attribute - "
                           "bad codegen state\n"),
                          -1);
    }

    if (status == 0)
    {
        get_op.destroy ();
        set_op.destroy ();
        rt.destroy ();
        return 0;
    }
    else if (status == -1)
    {
        get_op.destroy ();
        set_op.destroy ();
        rt.destroy ();
        ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_visitor_attribute::"
                           "visit_attribute - "
                           "codegen for get_attribute failed\n"),
                          -1);
    }

    get_op.destroy ();
    set_op.destroy ();
    rt.destroy ();
    return 0;
}