//
// union_ci.cpp,v 1.18 2002/09/25 16:25:37 parsons Exp
//

// ============================================================================
//
// = LIBRARY
//    TAO IDL
//
// = FILENAME
//    union_ci.cpp
//
// = DESCRIPTION
//    Visitor generating code for Union in the client inline file
//
// = AUTHOR
//    Aniruddha Gokhale
//
// ============================================================================

ACE_RCSID (be_visitor_union, 
           union_ci, 
           "union_ci.cpp,v 1.18 2002/09/25 16:25:37 parsons Exp")

// ******************************************************
// For client inline.
// ******************************************************

be_visitor_union_ci::be_visitor_union_ci (be_visitor_context *ctx)
  : be_visitor_union (ctx)
{
}

be_visitor_union_ci::~be_visitor_union_ci (void)
{
}

int be_visitor_union_ci::visit_union (be_union *node)
{
  if (node->cli_inline_gen () || node->imported ())
    {
      return 0;
    }

  be_visitor_context ctx (*this->ctx_);
  ctx.node (node);

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

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

  *os << "// *************************************************************"
      << be_nl;
  *os << "// Inline operations for union " << node->name () << be_nl;
  *os << "// *************************************************************";

  // the discriminant type may have to be defined here if it was an enum
  // declaration inside of the union statement.

  be_type *bt = be_type::narrow_from_decl (node->disc_type ());

  if (!bt)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_union_ci::"
                         "visit_union - "
                         "bad discriminant type\n"), 
                        -1);
    }

  ctx.state (TAO_CodeGen::TAO_UNION_DISCTYPEDEFN_CI);
                                                     
  be_visitor_union_discriminant_ci visitor (&ctx);

  if (bt->accept (&visitor) == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_union_ci::"
                         "visit union - "
                         "codegen for discrminant failed\n"), 
                        -1);
    }

  // Now generate the implementation of the access methods for the
  // union. For this set our state.
  this->ctx_->state (TAO_CodeGen::TAO_UNION_PUBLIC_CI);

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

  // Generate the ifdefined macro for the array type.
  os->gen_ifdef_macro (node->flat_name (), "_var");

  if (node->gen_var_impl () == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_union_ci::"
                         "visit_union - "
                         "codegen for _var failed\n"), 
                        -1);
    }

  os->gen_endif ();

  // Generate the ifdefined macro for the array type then generate the
  // _out impl
  os->gen_ifdef_macro (node->flat_name (), "_out");

  if (node->size_type () == AST_Type::VARIABLE
      && node->gen_out_impl () == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_union_ci::"
                         "visit_union - "
                         "codegen for _out failed\n"), 
                        -1);
    }

  os->gen_endif ();

  node->cli_inline_gen (I_TRUE);
  return 0;
}
