be_produce.cpp

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// $Id: be_produce.cpp 76589 2007-01-25 18:04:11Z elliott_c $

/*

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 */

// BE_produce.cc - Produce the work of the BE - does nothing in the
//                 dummy BE

#include "global_extern.h"
#include "TAO_IFR_BE_Export.h"
#include "be_extern.h"
#include "fe_extern.h"
#include "ast_root.h"
#include "ifr_visitor_macro.h"
#include "ifr_removing_visitor.h"
#include "ifr_adding_visitor.h"

ACE_RCSID (be,
           be_produce,
           "$Id: be_produce.cpp 76589 2007-01-25 18:04:11Z elliott_c $")

// Clean up before exit, whether successful or not.
TAO_IFR_BE_Export void
BE_cleanup (void)
{
  idl_global->destroy ();
}

// Abort this run of the BE.
TAO_IFR_BE_Export void
BE_abort (void)
{
  ACE_ERROR ((LM_ERROR,
              ACE_TEXT ("Fatal Error - Aborting\n")));

  // BE_cleanup will be called after the exception is caught.
  throw FE_Bailout ();
}

void
BE_create_holding_scope (void)
{
  CORBA::ModuleDef_ptr scope = CORBA::ModuleDef::_nil ();

  // If we are multi-threaded, it may already be created.
  CORBA::Contained_var result =
    be_global->repository ()->lookup_id (be_global->holding_scope_name ());

  // Will live until the repository goes away for good.
  if (CORBA::is_nil (result.in ()))
    {
      scope =
        be_global->repository ()->create_module (
                                      be_global->holding_scope_name (),
                                      be_global->holding_scope_name (),
                                      "1.0"
                                    );
    }
  else
    {
      scope = CORBA::ModuleDef::_narrow (result.in ());
    }

  be_global->holding_scope (scope);
}

int
BE_ifr_repo_init (void)
{
  CORBA::Object_var object =
    be_global->orb ()->resolve_initial_references ("InterfaceRepository");

  if (CORBA::is_nil (object.in ()))
    {
      ACE_ERROR_RETURN ((
          LM_ERROR,
          ACE_TEXT ("Null objref from resolve_initial_references\n")
        ),
        -1
      );
    }

  CORBA::Repository_var repo =
    CORBA::Repository::_narrow (object.in ());

  if (CORBA::is_nil (repo.in ()))
    {
      ACE_ERROR_RETURN ((
          LM_ERROR,
          ACE_TEXT ("CORBA::Repository::_narrow failed\n")
        ),
        -1
      );
    }

  be_global->repository (repo._retn ());

  return 0;
}

// Do the work of this BE. This is the starting point for code generation.
TAO_IFR_BE_Export void
BE_produce (void)
{
  try
    {
      int status = BE_ifr_repo_init ();

      if (status != 0)
        {
          return;
        }

      BE_create_holding_scope ();

      // Get the root node.
      AST_Decl *d = idl_global->root ();
      AST_Root *root = AST_Root::narrow_from_decl (d);

      if (root == 0)
        {
          ACE_ERROR ((LM_ERROR,
                      ACE_TEXT ("(%N:%l) BE_produce - ")
                      ACE_TEXT ("No Root\n")));

          BE_abort ();
        }

      if (be_global->removing ())
        {
          ifr_removing_visitor visitor;

          TAO_IFR_VISITOR_WRITE_GUARD;

          // If the visitor is dispatched this way, we need to override
          // only visit_scope() for the removing visitor.
          if (visitor.visit_scope (root) == -1)
            {
              ACE_ERROR ((
                  LM_ERROR,
                  ACE_TEXT ("(%N:%l) BE_produce -")
                  ACE_TEXT (" failed to accept removing visitor\n")
                ));

              BE_abort ();
            }
        }
      else
        {
          ifr_adding_visitor visitor (d);

          TAO_IFR_VISITOR_WRITE_GUARD;

          if (root->ast_accept (&visitor) == -1)
            {
              ACE_ERROR ((
                  LM_ERROR,
                  ACE_TEXT ("(%N:%l) BE_produce -")
                  ACE_TEXT (" failed to accept adding visitor\n")
                ));

              BE_abort ();
            }
        }
    }
  catch (const CORBA::Exception& ex)
    {
      ex._tao_print_exception (ACE_TEXT ("BE_produce"));

    }

  // Clean up.
  BE_cleanup ();
}

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