
//=============================================================================
/**
 *  @file    ami4ccm_rh_ex_idl.cpp
 *
 *  $Id$
 *
 *  Visitor generating code for AMI4CCM Interfaces in the executor IDL
 *
 *
 *  @author Jeff Parsons
 */
//=============================================================================

#include "interface.h"

be_visitor_ami4ccm_rh_ex_idl::be_visitor_ami4ccm_rh_ex_idl (
      be_visitor_context *ctx)
  : be_visitor_scope (ctx),
    os_ (*ctx->stream ()),
    seen_in_or_inout_arg_ (false)
{
}

be_visitor_ami4ccm_rh_ex_idl::~be_visitor_ami4ccm_rh_ex_idl (void)
{
}

int
be_visitor_ami4ccm_rh_ex_idl::visit_interface (be_interface *node)
{
  os_ << be_nl
      << "// TAO_IDL - Generated from" << be_nl
      << "// " << __FILE__ << ":" << __LINE__;

  os_ << be_nl_2
      << "local interface AMI4CCM_"
      << node->original_local_name ()
      << "ReplyHandler" << be_idt_nl
      << ": ";

  long n_parents = node->n_inherits ();

  if (n_parents == 0)
    {
      os_ << "::CCM_AMI::ReplyHandler";
    }
  else
    {
      os_ << be_idt;

      for (long i = 0; i < n_parents; ++i)
        {
          if (i != 0)
            {
              os_ << "," << be_nl;
            }

          AST_Type *parent = node->inherits ()[i];

          AST_Decl *d = ScopeAsDecl (parent->defined_in ());

          bool global = (d->node_type () == AST_Decl::NT_root);

          os_ << (global ? "" : "::") << d->full_name ()
              << "::AMI4CCM_" << parent->original_local_name ()
              << "ReplyHandler";
        }

      os_ << be_uidt;
    }

  os_ << be_uidt_nl
      << "{" << be_idt;

  if (this->visit_scope (node) == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         ACE_TEXT ("be_visitor_ami4ccm_rh_ex_idl")
                         ACE_TEXT ("::visit_interface - ")
                         ACE_TEXT ("visit_scope() failed\n")),
                        -1);
    }

  os_ << be_uidt_nl
      << "};";

  return 0;
}

int
be_visitor_ami4ccm_rh_ex_idl::visit_operation (be_operation *node)
{
  if (node->flags () == AST_Operation::OP_oneway)
    {
      // We do nothing for oneways!
      return 0;
    }

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

  os_ << be_nl
      << "void " << node->original_local_name ()
      << " (" << be_idt;

  if (!node->void_return_type ())
    {
      be_type *t =
        be_type::narrow_from_decl (node->return_type ());

      os_ << be_nl
          << "in "
          << IdentifierHelper::type_name (t, this)
          << " ami_return_val";
    }

  if (this->visit_scope (node) == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         ACE_TEXT ("be_visitor_ami4ccm_rh_ex_idl")
                         ACE_TEXT ("::visit_operation - ")
                         ACE_TEXT ("visit_scope() failed\n")),
                        -1);
    }

  os_ << ");" << be_uidt;

  os_ << be_nl
      << "void " << node->original_local_name ()
      << "_excep (" << be_idt_nl
      << "in ::CCM_AMI::ExceptionHolder excep_holder);" << be_uidt;

  /// Reset for next operation traversal.
  this->seen_in_or_inout_arg_ = false;

  return 0;
}

int
be_visitor_ami4ccm_rh_ex_idl::visit_attribute (be_attribute *node)
{
  this->gen_attr_rh_ops (false, node);

  if (!node->readonly ())
    {
      this->gen_attr_rh_ops (true, node);
    }

  return 0;
}

int
be_visitor_ami4ccm_rh_ex_idl::visit_argument (be_argument *node)
{
  if (node->direction () == AST_Argument::dir_IN)
    {
      return 0;
    }

  be_type *t =
    be_type::narrow_from_decl (node->field_type ());

  os_ << be_nl
      << "in ";

  os_ << IdentifierHelper::type_name (t, this);

  os_ << " " << node->original_local_name ();

  return 0;
}

int
be_visitor_ami4ccm_rh_ex_idl::visit_string (be_string *node)
{
  os_ << (node->width () > 1 ? "w" : "") << "string";

  ACE_CDR::ULong bound = node->max_size ()->ev ()->u.ulval;

  if (bound > 0)
    {
      os_ << "<" << bound << ">";
    }

  return 0;
}

int
be_visitor_ami4ccm_rh_ex_idl::visit_sequence (be_sequence *node)
{
  // Keep output statements separate because of side effects.
  os_ << "sequence<";
  os_ << IdentifierHelper::type_name (node->base_type (), this);

  if (!node->unbounded ())
    {
      os_ << ", " << node->max_size ()->ev ()->u.ulval;
    }

  os_ << "> ";

  return 0;
}

int
be_visitor_ami4ccm_rh_ex_idl::pre_process (be_decl *node)
{
  be_operation *op =
    be_operation::narrow_from_scope (this->ctx_->scope ());

  if (op == 0)
    {
      return 0;
    }

  bool void_ret_type = op->void_return_type ();

  be_argument *arg = be_argument::narrow_from_decl (node);

  if (arg == 0)
    {
      return 0;
    }

  if (arg->direction () == AST_Argument::dir_IN)
    {
      return 0;
    }

  if (!this->seen_in_or_inout_arg_)
    {
      this->seen_in_or_inout_arg_ = true;

      if (void_ret_type)
        {
          /// If we are here, we are generating the first
          /// parameter in the RH operation, so we don't
          /// want a leading comma.
          return 0;
        }
    }

  /// If we are here after all the above checks, we
  /// always want to generate a leading comma.
  os_ << ",";

  return 0;
}

void
be_visitor_ami4ccm_rh_ex_idl::gen_attr_rh_ops (bool is_set_op,
                                               be_attribute *node)
{
  os_ << be_nl
      << "void " << (is_set_op ? "set_" : "get_")
      << node->original_local_name () << " (";

  if (!is_set_op)
    {
      be_type *t =
        be_type::narrow_from_decl (node->field_type ());

      os_ << be_idt_nl << "in ";

      os_ << IdentifierHelper::type_name (t, this);

      os_ << " " << node->original_local_name () << be_uidt;
    }

  os_ << ");"
      << be_nl
      << "void " << (is_set_op ? "set_" : "get_")
      << node->original_local_name () << "_excep (" << be_idt_nl
      << "in CCM_AMI::ExceptionHolder excep_holder);" << be_uidt;
}
