valuetype.cpp

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  return 0;
}

int
be_visitor_valuetype::visit_structure_fwd (be_structure_fwd *node)
{
  // Instantiate a visitor context with a copy of our context. This info
  // will be modified based on what type of node we are visiting.
  be_visitor_context ctx (*this->ctx_);
  ctx.node (node);
  int status = 0;

  switch (this->ctx_->state ())
    {
    case TAO_CodeGen::TAO_ROOT_CH:
      {
        be_visitor_structure_fwd_ch visitor (&ctx);
        status = node->accept (&visitor);
        break;
      }
    default:
      return 0; // nothing to be done
    }

  if (status == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_valuetype::"
                         "visit_structure_fwd - "
                         "failed to accept visitor\n"),  
                        -1);
    }

  return 0;
}

int
be_visitor_valuetype::visit_union (be_union *node)
{
  be_visitor_context ctx (*this->ctx_);
  ctx.node (node);
  int status = 0;

  switch (this->ctx_->state ())
    {
    case TAO_CodeGen::TAO_ROOT_CH:
      {
        be_visitor_union_ch visitor (&ctx);
        status = node->accept (&visitor);
        break;
      }
    case TAO_CodeGen::TAO_ROOT_CI:
      {
        be_visitor_union_ci visitor (&ctx);
        status = node->accept (&visitor);
        break;
      }
    case TAO_CodeGen::TAO_ROOT_CS:
      {
        be_visitor_union_cs visitor (&ctx);
        status = node->accept (&visitor);
        break;
      }
    case TAO_CodeGen::TAO_ROOT_ANY_OP_CH:
      {
        be_visitor_union_any_op_ch visitor (&ctx);
        status = node->accept (&visitor);
        break;
      }
    case TAO_CodeGen::TAO_ROOT_ANY_OP_CS:
      {
        be_visitor_union_any_op_cs visitor (&ctx);
        status = node->accept (&visitor);
        break;
      }
    case TAO_CodeGen::TAO_ROOT_CDR_OP_CH:
      {
        be_visitor_union_cdr_op_ch visitor (&ctx);
        status = node->accept (&visitor);
        break;
      }
    case TAO_CodeGen::TAO_ROOT_CDR_OP_CI:
      {
        be_visitor_union_cdr_op_ci visitor (&ctx);
        status = node->accept (&visitor);
        break;
      }
    case TAO_CodeGen::TAO_ROOT_CDR_OP_CS:
      {
        be_visitor_union_cdr_op_cs visitor (&ctx);
        status = node->accept (&visitor);
        break;
      }
    case TAO_CodeGen::TAO_VALUETYPE_OBV_CH:
    case TAO_CodeGen::TAO_VALUETYPE_OBV_CI:
    case TAO_CodeGen::TAO_VALUETYPE_OBV_CS:
    case TAO_CodeGen::TAO_ROOT_SH:
    case TAO_CodeGen::TAO_ROOT_IH:
    case TAO_CodeGen::TAO_ROOT_IS:
    case TAO_CodeGen::TAO_ROOT_SI:
    case TAO_CodeGen::TAO_ROOT_SS:
      return 0; // Nothing to be done.
    default:
      {
        ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_visitor_valuetype::"
                           "visit_union - "
                           "Bad context state\n"), 
                          -1);
      }
    }

  if (status == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_valuetype::"
                         "visit_union - "
                         "failed to accept visitor\n"),  
                        -1);
    }

  return 0;
}

int
be_visitor_valuetype::visit_union_fwd (be_union_fwd *node)
{
  // Instantiate a visitor context with a copy of our context. This info
  // will be modified based on what type of node we are visiting.
  be_visitor_context ctx (*this->ctx_);
  ctx.node (node);
  int status = 0;

  switch (this->ctx_->state ())
    {
    case TAO_CodeGen::TAO_ROOT_CH:
      {
        be_visitor_union_fwd_ch visitor (&ctx);
        status = node->accept (&visitor);
        break;
      }
    default:
      return 0; // nothing to be done
    }

  if (status == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_valuetype::"
                         "visit_union_fwd - "
                         "failed to accept visitor\n"),  
                        -1);
    }

  return 0;
}

int
be_visitor_valuetype::visit_typedef (be_typedef *node)
{
  be_visitor_context ctx (*this->ctx_);
  ctx.node (node);
  int status = 0;

  switch (this->ctx_->state ())
    {
    case TAO_CodeGen::TAO_ROOT_CH:
      {
        be_visitor_typedef_ch visitor (&ctx);
        status = node->accept (&visitor);
        break;
      }
    case TAO_CodeGen::TAO_ROOT_CI:
      {
        be_visitor_typedef_ci visitor (&ctx);
        status = node->accept (&visitor);
        break;
      }
    case TAO_CodeGen::TAO_ROOT_CS:
      {
        be_visitor_typedef_cs visitor (&ctx);
        status = node->accept (&visitor);
        break;
      }
    case TAO_CodeGen::TAO_ROOT_ANY_OP_CH:
      {
        be_visitor_typedef_any_op_ch visitor (&ctx);
        status = node->accept (&visitor);
        break;
      }
    case TAO_CodeGen::TAO_ROOT_ANY_OP_CS:
      {
        be_visitor_typedef_any_op_cs visitor (&ctx);
        status = node->accept (&visitor);
        break;
      }
    case TAO_CodeGen::TAO_ROOT_CDR_OP_CH:
      {
        be_visitor_typedef_cdr_op_ch visitor (&ctx);
        status = node->accept (&visitor);
        break;
      }
    case TAO_CodeGen::TAO_ROOT_CDR_OP_CI:
      {
        be_visitor_typedef_cdr_op_ci visitor (&ctx);
        status = node->accept (&visitor);
        break;
      }
    case TAO_CodeGen::TAO_ROOT_CDR_OP_CS:
      {
        be_visitor_typedef_cdr_op_cs visitor (&ctx);
        status = node->accept (&visitor);
        break;
      }
    case TAO_CodeGen::TAO_VALUETYPE_OBV_CH:
    case TAO_CodeGen::TAO_VALUETYPE_OBV_CI:
    case TAO_CodeGen::TAO_VALUETYPE_OBV_CS:
    case TAO_CodeGen::TAO_ROOT_SH:
    case TAO_CodeGen::TAO_ROOT_IH:
    case TAO_CodeGen::TAO_ROOT_IS:
    case TAO_CodeGen::TAO_ROOT_SI:
    case TAO_CodeGen::TAO_ROOT_SS:
      return 0; // Nothing to be done.
    default:
      {
        ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_visitor_valuetype::"
                           "visit_typedef - "
                           "Bad context state\n"), 
                          -1);
      }
    }

  if (status == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_valuetype::"
                         "visit_typedef - "
                         "failed to accept visitor\n"),  
                        -1);
    }

  return 0;
}

int
be_visitor_valuetype::visit_field (be_field *)
{
  // Is overridden in derived visitors.
  return 0;
}


// Private data fields for scope.
int
be_visitor_valuetype::gen_pd (be_valuetype *node)
{
  int n_processed = 0;
  this->elem_number_ = 0;

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

      if (!d)
        {
          ACE_ERROR_RETURN ((LM_ERROR,
                             "(%N:%l) be_visitor_scope::visit_scope - "
                             "bad node in this scope\n"), 
                            -1);
        }

      be_field *field = be_field::narrow_from_decl (d);

      if (!field)
        {
          continue;
        }

      ++n_processed;

      // Set the scope node as "node" in which the code is being
      // generated so that elements in the node's scope can use it
      // for code generation.
      this->ctx_->scope (node->decl ());

      // Set the node to be visited.
      this->ctx_->node (field);
      this->elem_number_++;

      if (this->gen_field_pd (field) == -1)
        {
          ACE_ERROR_RETURN ((LM_ERROR,
                             "(%N:%l) be_visitor_scope::visit_scope - "
                             "codegen for scope failed\n"), 
                            -1);
        }
    }

  return 0;
}

// Private data for field.
int
be_visitor_valuetype::gen_field_pd (be_field *node)
{
  TAO_OutStream *os = this->ctx_->stream ();

  // First generate the type information.
  be_type *bt = be_type::narrow_from_decl (node->field_type ());
  be_valuetype *vt = be_valuetype::narrow_from_scope (node->defined_in ());

  if (!bt || !vt)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_field_ch::"
                         "visit_field - "
                         "Bad field type\n"), 
                        -1);
    }

  // Instantiate a visitor context with a copy of our context. This info
  // will be modified based on what type of node we are visiting.
  be_visitor_context ctx (*this->ctx_);
  ctx.node (node);
  be_visitor_field_ch visitor (&ctx);

  *os << be_nl;

  if (bt->accept (&visitor) == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_field_ch::"
                         "visit_field - "
                         "codegen for field type failed\n"), 
                        -1);
    }

  // Now output the field name.  
  *os << " " << vt->field_pd_prefix ()
      << node->local_name ()
      << vt->field_pd_postfix () << ";";

  return 0;
}


// Generate the _init definition.
int
be_visitor_valuetype::gen_init_defn (be_valuetype *node)
{
  if (node->is_abstract ())
    {
      return 0;
    }

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

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

  *os << "class " << be_global->stub_export_macro ()
      << " " << node->local_name ()
      << "_init : public CORBA::ValueFactoryBase" << be_nl;

  // Generate the body.
  *os << "{" << be_nl
      << "public:" << be_idt_nl
      << "virtual ~" << node->local_name () << "_init (void);" << be_nl;

  *os << "virtual const char* tao_repository_id (void);\n" << be_nl;
  *os << "// create () goes here" << be_nl;
  *os << be_uidt_nl << "};" << be_nl;

  return 0;
}

int
be_visitor_valuetype::gen_init_impl (be_valuetype *node)
{
  if (node->is_abstract ())
    {
      return 0;
    }

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

  char fname [NAMEBUFSIZE];  // to hold the full and
  char lname [NAMEBUFSIZE];  // local _out names

  ACE_OS::memset (fname, 
                  '\0', 
                  NAMEBUFSIZE);
  ACE_OS::sprintf (fname, 
                   "%s_init", 
                   node->full_name ());

  ACE_OS::memset (lname, 
                  '\0', 
                  NAMEBUFSIZE);
  ACE_OS::sprintf (lname, 
                   "%s_init", 
                   node->local_name ());

  // Destructor.
  *os << fname << "::~" << lname << " (void)" << be_nl
      << "{" << be_nl << "}\n\n";

  *os << "const char* " << be_nl
      << fname << "::tao_repository_id (void)" << be_nl
      << "{" << be_idt_nl
      <<   "return " << node->local_name ()
      <<                "::_tao_obv_static_repository_id ();"
      << be_uidt_nl << "}\n\n";

  return 0;
}

idl_bool
be_visitor_valuetype::obv_need_ref_counter (be_valuetype* node)
{
  // VT needs RefCounter if it has concrete factory or supports an
  // abstract interface and none of its base VT has ref_counter

  if (node->determine_factory_style () != be_valuetype::FS_CONCRETE_FACTORY
      && !node->supports_abstract ())
    {
      return 0;
    }

  // Now go thru our base VTs and see if one has already.
  for (int i = 0; i < node->n_inherits (); ++i)
    {
      be_valuetype *vt = 
        be_valuetype::narrow_from_decl (node->inherits ()[i]);

      if (vt != 0)
        {
          if (be_visitor_valuetype::obv_have_ref_counter (vt))
            {
              return 0;
            }
        }
    }

  return 1;
}

idl_bool
be_visitor_valuetype::obv_have_ref_counter (be_valuetype* node)
{

  // Just try to find a VT with concrete factory in inheritance tree.
  if (node == 0)
    {
      return 0;
    }

  if (node->determine_factory_style () == be_valuetype::FS_CONCRETE_FACTORY)
    {
      return 1;
    }

  // Now go thru our base VTs.
  for (int i = 0; i < node->n_inherits (); ++i)
    {
      be_valuetype *vt = be_valuetype::narrow_from_decl (node->inherits ()[i]);

      if (vt != 0)
        {
          if (be_visitor_valuetype::obv_have_ref_counter (vt))
            {
              return 1;
            }
        }
    }

  return 0;
}

idl_bool
be_visitor_valuetype::is_amh_exception_holder (be_valuetype *node)
{
 if (ACE_OS::strncmp (node->local_name (), "AMH_", 4) == 0)
   {
     const char *last_E = 
      ACE_OS::strrchr (node->full_name (), 'E');

     if (last_E != 0
         && ACE_OS::strcmp (last_E, "ExceptionHolder") == 0)
       {
         return I_TRUE;
       }
   }

  return I_FALSE;
}