operation_cs.cpp

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//
// operation_cs.cpp,v 1.86 2003/10/28 18:30:38 bala Exp
//

// ============================================================================
//
// = LIBRARY
//    TAO IDL
//
// = FILENAME
//    operation_cs.cpp
//
// = DESCRIPTION
//    Visitor generating code for Operation in the stubs file.
//
// = AUTHOR
//    Aniruddha Gokhale & Angelo Corsaro
//
// ============================================================================

ACE_RCSID (be_visitor_operation,
           operation_cs,
           "operation_cs.cpp,v 1.86 2003/10/28 18:30:38 bala Exp")

// ************************************************************
// Operation visitor for client stubs
// ************************************************************

be_visitor_operation_cs::be_visitor_operation_cs (be_visitor_context *ctx)
  : be_visitor_operation (ctx)
{
}

be_visitor_operation_cs::~be_visitor_operation_cs (void)
{
}

// Processing to be done after every element in the scope is processed.
int
be_visitor_operation_cs::post_process (be_decl *bd)
{
  // All we do here is to insert a comma and a newline.
  TAO_OutStream *os = this->ctx_->stream ();

  if (!this->last_node (bd))
    {
      *os << ",\n";
    }

  return 0;
}

int
be_visitor_operation_cs::visit_operation (be_operation *node)
{
  be_interface *intf = this->ctx_->attribute ()
    ? be_interface::narrow_from_scope (this->ctx_->attribute ()->defined_in ())
    : be_interface::narrow_from_scope (node->defined_in ());

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

  TAO_OutStream *os = this->ctx_->stream ();
  this->ctx_->node (node); // save the node for future use

  if (node->is_local ())
    {
      return 0;
    }

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

  // 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_cs::"
                         "visit_operation - "
                         "Bad return type\n"),
                        -1);
    }

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

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

  // Generate the operation name
  *os << " " << node->name ();

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

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

  return this->gen_stub_operation_body (node,
                                        bt);
}

int
be_visitor_operation_cs::visit_argument (be_argument *node)
{
  // This method is used to generate the ParamData table entry.

  TAO_OutStream *os = this->ctx_->stream ();
  be_type *bt = be_type::narrow_from_decl (node->field_type ());

  if (!bt)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_operation_cs::"
                         "visit_argument - "
                         "Bad argument type\n"),
                        -1);
    }

  os->indent ();
  *os << "{" << bt->tc_name () << ", ";

  switch (node->direction ())
    {
    case AST_Argument::dir_IN:
      *os << "PARAM_IN, ";
      break;
    case AST_Argument::dir_INOUT:
      *os << "PARAM_INOUT, ";
      break;
    case AST_Argument::dir_OUT:
      *os << "PARAM_OUT, ";
      break;
    }

  *os << "0}";
  return 0;
}