interface_cs.cpp

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//
// interface_cs.cpp,v 1.98 2004/01/01 14:50:41 bala Exp
// ============================================================================
//
// = LIBRARY
//    TAO IDL
//
// = FILENAME
//    interface_cs.cpp
//
// = DESCRIPTION
//    Visitor generating code for Interfaces in the client stubs file.
//
// = AUTHOR
//    Aniruddha Gokhale
//
// ============================================================================

ACE_RCSID (be_visitor_interface,
           interface_cs,
           "interface_cs.cpp,v 1.98 2004/01/01 14:50:41 bala Exp")


// ************************************************************
// Interface visitor for client stubs
// ************************************************************

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

be_visitor_interface_cs::~be_visitor_interface_cs (void)
{
}

int
be_visitor_interface_cs::visit_interface (be_interface *node)
{
  if (node->imported () || node->cli_stub_gen ())
    {
      return 0;
    }

  be_type *bt;

  // Set the right type.
  if (this->ctx_->alias ())
    {
      bt = this->ctx_->alias ();
    }
  else
    {
      bt = node;
    }

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

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

  if (node->is_defined ())
    {
      *os << be_nl << be_nl
          << "// Traits specializations for " << node->name () << ".";

      *os << be_nl << be_nl
          << "ACE_TEMPLATE_CLASS_MEMBER_SPECIALIZATION" << be_nl
          << node->name () << "_ptr" << be_nl
          << "TAO::Objref_Traits<" << node->name () << ">::tao_duplicate ("
          << be_idt << be_idt_nl
          << node->name () << "_ptr p" << be_uidt_nl
          << ")" << be_uidt_nl
          << "{" << be_idt_nl
          << "return " << node->name () << "::_duplicate (p);" << be_uidt_nl
          << "}";

      *os << be_nl << be_nl
          << "ACE_TEMPLATE_CLASS_MEMBER_SPECIALIZATION" << be_nl
          << "void" << be_nl
          << "TAO::Objref_Traits<" << node->name () << ">::tao_release ("
          << be_idt << be_idt_nl
          << node->name () << "_ptr p" << be_uidt_nl
          << ")" << be_uidt_nl
          << "{" << be_idt_nl
          << "CORBA::release (p);" << be_uidt_nl
          << "}";

      *os << be_nl << be_nl
          << "ACE_TEMPLATE_CLASS_MEMBER_SPECIALIZATION" << be_nl
          << node->name () << "_ptr" << be_nl
          << "TAO::Objref_Traits<" << node->name () << ">::tao_nil (void)"
          << be_nl
          << "{" << be_idt_nl
          << "return " << node->name () << "::_nil ();" << be_uidt_nl
          << "}";

      *os << be_nl << be_nl
          << "ACE_TEMPLATE_CLASS_MEMBER_SPECIALIZATION" << be_nl
          << "CORBA::Boolean" << be_nl
          << "TAO::Objref_Traits<" << node->name () << ">::tao_marshal ("
          << be_idt << be_idt_nl
          << node->name () << "_ptr p," << be_nl
          << "TAO_OutputCDR & cdr" << be_uidt_nl
          << ")" << be_uidt_nl
          << "{" << be_idt_nl
          << "return p->marshal (cdr);" << be_uidt_nl
          << "}";
    }

  if (node->has_mixed_parentage ())
    {
      *os << be_nl << be_nl
          << "void" << be_nl
          << "CORBA::release ("
          << node->name ()
          << "_ptr p)" << be_nl
          << "{" << be_idt_nl
          << "CORBA::AbstractBase_ptr abs = p;" << be_nl
          << "CORBA::release (abs);" << be_uidt_nl
          << "}";

      *os << be_nl << be_nl
          << "CORBA::Boolean" << be_nl
          << "CORBA::is_nil ("
          << node->name ()
          << "_ptr p)" << be_nl
          << "{" << be_idt_nl
          << "CORBA::Object_ptr obj = p;" << be_nl
          << "return CORBA::is_nil (obj);" << be_uidt_nl
          << "}";
    }

  // Generate the proxy broker factory function pointer definition.
  *os << be_nl << be_nl
      << "// Function pointer for collocation factory initialization."
      << be_nl
      << "TAO::Collocation_Proxy_Broker * " << be_nl
      << "(*" << node->flat_client_enclosing_scope ()
      << node->base_proxy_broker_name ()
      << "_Factory_function_pointer) ("
      << be_idt << be_idt_nl
      << "CORBA::Object_ptr obj" << be_uidt_nl
      << ") = 0;" << be_uidt;

  // Generate code for the elements of the interface.
  if (this->visit_scope (node) == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_interface_cs::"
                         "visit_interface - "
                         "codegen for scope failed\n"),
                        -1);
    }

  if (node->is_local ())
    {
      *os << be_nl << be_nl
          << node->name () << "::" << node->local_name ()
          << " (void)" << be_nl
          << "{}";
    }

  if (! node->is_abstract () && ! node->is_local ())
    {
      *os << be_nl << be_nl
          << node->name () << "::" << node->local_name ()
          << " (int collocated)" << be_nl
          << " : the" << node->base_proxy_broker_name () << "_ (0)" << be_nl
          << "{" << be_idt_nl
          << "this->" << node->flat_name ()
          << "_setup_collocation (collocated);" << be_uidt_nl
          << be_uidt << "}";
    }

  if (! node->is_local ())
    {
      *os << be_nl << be_nl
          << "void" << be_nl
          << node->name () << "::" << node->flat_name ()
          << "_setup_collocation (int collocated)" << be_nl
          << "{" << be_idt_nl
          << "if (collocated)" << be_idt_nl
          << "{" << be_idt_nl
          << "this->the" << node->base_proxy_broker_name ()
          << "_ =" << be_idt_nl
          << "::" << node->flat_client_enclosing_scope ()
          << node->base_proxy_broker_name ()
          << "_Factory_function_pointer (";

       if (node->is_abstract ())
          {
            *os << be_idt << be_idt_nl
                << "this->equivalent_objref ()" << be_uidt_nl
                << ");" << be_uidt;
          }
        else
          {
            *os << "this);";
          }

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

      // Now we setup the immediate parents.
      int n_parents = node->n_inherits ();
      int has_parent = 0;

      if (n_parents > 0)
        {
          for (int i = 0; i < n_parents; ++i)
            {
              be_interface *inherited =
                be_interface::narrow_from_decl (node->inherits ()[i]);

              if (has_parent == 0)
                {
                  *os << be_nl;
                }

              has_parent = 1;

              *os << be_nl
                  << "this->" << inherited->flat_name ()
                  << "_setup_collocation" << " (collocated);";
            }
        }

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

  *os << be_nl << be_nl
      << node->name () << "::~" << node->local_name ()
      << " (void)" << be_nl;
  *os << "{}" << be_nl << be_nl;

  if (be_global->any_support ())
    {
      *os << "void " << be_nl
          << node->name ()
          << "::_tao_any_destructor (void *_tao_void_pointer)" << be_nl
          << "{" << be_idt_nl
          << node->local_name () << " *_tao_tmp_pointer =" << be_idt_nl
          << "ACE_static_cast ("
          << node->local_name () << " *, _tao_void_pointer);" << be_uidt_nl
          << "CORBA::release (_tao_tmp_pointer);" << be_uidt_nl
          << "}" << be_nl << be_nl;
    }

  if (node->has_mixed_parentage ())
    {
      *os << "void" << be_nl
          << node->name () << "::_add_ref (void)" << be_nl
          << "{" << be_idt_nl
          << "this->ACE_NESTED_CLASS (CORBA, Object)::_add_ref ();"
          << be_uidt_nl
          << "}" << be_nl << be_nl;
    }

  // The _narrow method
  if (this->gen_xxx_narrow ("narrow",
                            node) == false)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_interface_cs::"
                         "visit_interface - "
                         "_narrow () method codegen failed\n"),
                        -1);
    }

  // The _unchecked_narrow method
  if (this->gen_xxx_narrow ("unchecked_narrow",
                            node) == false)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_interface_cs::"
                         "visit_interface - "
                         "_unchecked_narrow () method codegen"
                         " failed\n"),
                        -1);
    }


  // The _duplicate method
  *os << node->full_name () << "_ptr" << be_nl
      << node->full_name () << "::_duplicate ("
      << bt->local_name ()
      << "_ptr obj)" << be_nl
      << "{" << be_idt_nl
      << "if (! CORBA::is_nil (obj))" << be_idt_nl
      << "{" << be_idt_nl
      << "obj->_add_ref ();" << be_uidt_nl
      << "}" << be_uidt_nl << be_nl
      << "return obj;" << be_uidt_nl
      << "}" << be_nl << be_nl;

  *os << "CORBA::Boolean" << be_nl