interceptors_ss.cpp

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//
// interceptors_ss.cpp,v 1.9 2003/10/28 18:30:37 bala Exp
//
// ============================================================================
//
// = LIBRARY
//    TAO IDL
//
// = FILENAME
//    interceptors_ss.cpp
//
// = DESCRIPTION
//    This provides code generation for interceptor classes for an
//    interface in the server source.
//
// = AUTHOR
//    Kirthika Parameswaran  <[e-mail]>
//
// ============================================================================

ACE_RCSID (be_visitor_interface, 
           interceptors_ss, 
           "interceptors_ss.cpp,v 1.9 2003/10/28 18:30:37 bala Exp")

// ************************************************************
//  interceptor class in header
// ************************************************************

be_visitor_interface_interceptors_ss::be_visitor_interface_interceptors_ss (
    be_visitor_context *ctx
  )
  : be_visitor_interface (ctx)
{
}

be_visitor_interface_interceptors_ss::~be_visitor_interface_interceptors_ss (
    void
  )
{
}

int be_visitor_interface_interceptors_ss::visit_interface (be_interface *node)
{
  if (node->is_local ())
    {
      return 0;
    }

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

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

  // Generate code for the interface definition by traversing thru the
  // elements of its scope. We depend on the front-end to have made sure
  // that only legal syntactic elements appear in our scope.
  *os << be_nl << be_nl 
      << "#if (TAO_HAS_INTERCEPTORS == 1)";

  os->reset ();

  // Generate code for the interface definition by traversing thru the
  // elements of its scope. We depend on the front-end to have made sure
  // that only legal syntactic elements appear in our scope.
  if (this->visit_scope (node) == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_interface_ch::"
                         "visit_interface - "
                         "codegen for scope failed\n"), 
                        -1);
    }

  *os  << "\n\n#endif /* TAO_HAS_INTERCEPTORS */\n";

  return 0;
}

int 
be_visitor_interface_interceptors_ss::visit_component (be_component *node)
{
  return this->visit_interface (node);
}

int 
be_visitor_interface_interceptors_ss::gen_abstract_ops_helper (
    be_interface *node,
    be_interface *base,
    TAO_OutStream *os
  )
{
  if (node == base)
    {
      return 0;
    }

  AST_Decl *d = 0;
  be_visitor_context ctx;
  ctx.stream (os);

  for (UTL_ScopeActiveIterator si (base, UTL_Scope::IK_decls);
       !si.is_done ();
       si.next ())
    {
      d = si.item ();

      if (d == 0)
        {
          ACE_ERROR_RETURN ((LM_ERROR,
                             "(%N:%l) be_visitor_interface_interceptors_ss::"
                             "abstract_base_ops_helper - "
                             "bad node in this scope\n"),
                            -1);
        }

      if (d->node_type () == AST_Decl::NT_op)
        {
          UTL_ScopedName *item_new_name  = 0;
          ACE_NEW_RETURN (item_new_name,
                          UTL_ScopedName (d->local_name ()->copy (),
                                          0),
                          -1);

          UTL_ScopedName *base = (UTL_ScopedName *)node->name ()->copy ();
          base->nconc (item_new_name);

          AST_Operation *op = AST_Operation::narrow_from_decl (d);
          be_operation new_op (op->return_type (),
                               op->flags (),
                               0,
                               op->is_local (),
                               op->is_abstract ());
          new_op.set_defined_in (node);
          be_visitor_interface::add_abstract_op_args (op,
                                                      new_op);
          new_op.set_name (base);
          be_visitor_operation_interceptors_ss op_visitor (&ctx);
          op_visitor.visit_operation (&new_op);

          base->destroy ();
          delete base;
          base = 0;
        }
    }

  return 0;
}