//
// buffer_type.cpp,v 1.13 2005/08/12 22:13:30 parsons Exp
//

// ============================================================================
//
// = LIBRARY
//    TAO IDL
//
// = FILENAME
//    buffer_type.cpp
//
// = DESCRIPTION
//    Visitor generating code for the internal buffer type of the Sequence node
//
// = AUTHOR
//    Aniruddha Gokhale
//
// ============================================================================

ACE_RCSID (be_visitor_sequence, 
           buffer_type, 
           "buffer_type.cpp,v 1.13 2005/08/12 22:13:30 parsons Exp")

// ****************************************************************
// We have to generate the buffer type in the constructor
// ****************************************************************

be_visitor_sequence_buffer_type::be_visitor_sequence_buffer_type (
    be_visitor_context *ctx
  )
  : be_visitor_decl (ctx)
{
}

be_visitor_sequence_buffer_type::~be_visitor_sequence_buffer_type (void)
{
}

// helper
int
be_visitor_sequence_buffer_type::visit_node (be_type *node)
{
  TAO_OutStream *os = this->ctx_->stream ();
  be_type *bt;

  if (this->ctx_->alias ())
    {
      bt = this->ctx_->alias ();
    }
  else
    {
      bt = node;
    }

  if (this->ctx_->state () == TAO_CodeGen::TAO_SEQUENCE_BUFFER_TYPE_CH)
    {
      *os << bt->nested_type_name (this->ctx_->scope ());
    }
  else
    {
      *os << bt->name ();
    }

  return 0;
}

int
be_visitor_sequence_buffer_type::visit_predefined_type (be_predefined_type *node)
{
  TAO_OutStream *os = this->ctx_->stream ();
  AST_PredefinedType::PredefinedType pt = node->pt ();
  
  *os << "::";

  if (pt == AST_PredefinedType::PT_pseudo
      || pt == AST_PredefinedType::PT_object)
    {
      *os << node->name () << "_ptr";
    }
  else if (pt == AST_PredefinedType::PT_value)
    {
       *os << node->name () << " *";
    }
  else
    {
      *os << node->name ();
    }

  return 0;
}

int
be_visitor_sequence_buffer_type::visit_sequence (be_sequence *node)
{
  return this->visit_node (node);
}

int
be_visitor_sequence_buffer_type::visit_interface (be_interface *node)
{
  TAO_OutStream *os = this->ctx_->stream ();

  if (this->ctx_->state () == TAO_CodeGen::TAO_SEQUENCE_BUFFER_TYPE_CH)
    {
      *os << node->nested_type_name (this->ctx_->scope (), "_ptr");
    }
  else
    {
      *os << node->name () << "_ptr";
    }

  return 0;
}

int
be_visitor_sequence_buffer_type::visit_interface_fwd (be_interface_fwd *node)
{
  TAO_OutStream *os = this->ctx_->stream ();

  if (this->ctx_->state () == TAO_CodeGen::TAO_SEQUENCE_BUFFER_TYPE_CH)
    {
      *os << node->nested_type_name (this->ctx_->scope (), "_ptr");
    }
  else
    {
      *os << node->name () << "_ptr";
    }

  return 0;
}

int
be_visitor_sequence_buffer_type::visit_component (be_component *node)
{
  return this->visit_interface (node);
}

int
be_visitor_sequence_buffer_type::visit_component_fwd (be_component_fwd *node)
{
  return this->visit_interface_fwd (node);
}

int
be_visitor_sequence_buffer_type::visit_valuebox (be_valuebox *node)
{
  TAO_OutStream *os = this->ctx_->stream ();

  if (this->ctx_->state () == TAO_CodeGen::TAO_SEQUENCE_BUFFER_TYPE_CH)
    {
      *os << node->nested_type_name (this->ctx_->scope (), " *");
    }
  else
    {
      *os << node->name () << " *";
    }

  return 0;
}

int
be_visitor_sequence_buffer_type::visit_valuetype (be_valuetype *node)
{
  TAO_OutStream *os = this->ctx_->stream ();

  if (this->ctx_->state () == TAO_CodeGen::TAO_SEQUENCE_BUFFER_TYPE_CH)
    {
      *os << node->nested_type_name (this->ctx_->scope (), " *");
    }
  else
    {
      *os << node->name () << " *";
    }

  return 0;
}

int
be_visitor_sequence_buffer_type::visit_valuetype_fwd (be_valuetype_fwd *node)
{
  TAO_OutStream *os = this->ctx_->stream ();

  if (this->ctx_->state () == TAO_CodeGen::TAO_SEQUENCE_BUFFER_TYPE_CH)
    {
      *os << node->nested_type_name (this->ctx_->scope (), " *");
    }
  else
    {
      *os << node->name () << " *";
    }

  return 0;
}

int
be_visitor_sequence_buffer_type::visit_eventtype (be_eventtype *node)
{
  return this->visit_valuetype (node);
}

int
be_visitor_sequence_buffer_type::visit_eventtype_fwd (be_eventtype_fwd *node)
{
  return this->visit_valuetype_fwd (node);
}

int
be_visitor_sequence_buffer_type::visit_string (be_string *node)
{
  TAO_OutStream *os = this->ctx_->stream ();

  if (node->width () == (long) sizeof (char))
    {
      *os << "char *";
    }
  else
    {
      *os << "::CORBA::WChar *";
    }

  return 0;
}

int
be_visitor_sequence_buffer_type::visit_structure (be_structure *node)
{
  return this->visit_node (node);
}

int
be_visitor_sequence_buffer_type::visit_structure_fwd (be_structure_fwd *node)
{
  return this->visit_node (node);
}

int
be_visitor_sequence_buffer_type::visit_union (be_union *node)
{
  return this->visit_node (node);
}

int
be_visitor_sequence_buffer_type::visit_union_fwd (be_union_fwd *node)
{
  return this->visit_node (node);
}

int
be_visitor_sequence_buffer_type::visit_enum (be_enum *node)
{
  return this->visit_node (node);
}

int
be_visitor_sequence_buffer_type::visit_exception (be_exception *node)
{
  return this->visit_node (node);
}

int
be_visitor_sequence_buffer_type::visit_array (be_array *node)
{
  return this->visit_node (node);
}

int
be_visitor_sequence_buffer_type::visit_typedef (be_typedef *node)
{
  this->ctx_->alias (node);

  if (node->primitive_base_type ()->accept (this) == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "be_visitor_sequence_buffer_type::"
                         "visit_typedef - "
                         "accept on primitive type failed\n"),
                        -1);
    }

  this->ctx_->alias (0);
  return 0;
}
