public_ci.cpp

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//
// public_ci.cpp,v 1.37 2003/12/31 21:28:04 bala Exp
//

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

ACE_RCSID (be_visitor_union_branch,
           public_ci,
           "public_ci.cpp,v 1.37 2003/12/31 21:28:04 bala Exp")

// *****************************************************
//  Visitor for union_branch in the client inline file.
// *****************************************************

// constructor
be_visitor_union_branch_public_ci::be_visitor_union_branch_public_ci (
    be_visitor_context *ctx
  )
  : be_visitor_decl (ctx)
{
}

// destructor
be_visitor_union_branch_public_ci::~be_visitor_union_branch_public_ci (void)
{
}

// visit the union_branch node
int
be_visitor_union_branch_public_ci::visit_union_branch (be_union_branch *node)
{
  be_type *bt = be_type::narrow_from_decl (node->field_type ());

  if (!bt)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_union_branch_cs::"
                         "visit_union_branch - "
                         "Bad union_branch type\n"),
                        -1);
    }

  this->ctx_->node (node);

  if (bt->accept (this) == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_union_branch_cs::"
                         "visit_union_branch - "
                         "codegen for union_branch type failed\n"),
                        -1);
    }

  return 0;
}

// Visit operations on all possible data types that a union_branch can be.

int
be_visitor_union_branch_public_ci::visit_array (be_array *node)
{
  be_union_branch *ub = this->ctx_->be_node_as_union_branch ();
  be_union *bu = this->ctx_->be_scope_as_union ();
  be_type *bt;

  // Check if we are visiting this node via a visit to a typedef node.
  if (this->ctx_->alias ())
    {
      bt = this->ctx_->alias ();
    }
  else
    {
      bt = node;
    }

  if (!ub || !bu)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_union_branch_public_ci::"
                         "visit_enum - "
                         "bad context information\n"),
                        -1);
    }

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

  // If bt is not a typedef and is defined inside the union.
  if (bt->node_type () != AST_Decl::NT_typedef
      && bt->is_child (bu))
    {
      // Instantiate a visitor context with a copy of our context. This info
      // will be modified based on what type of node we are visiting.
      be_visitor_context ctx (*this->ctx_);

      // Set the node to be the node being visited. Scope is still the same.
      ctx.node (node);

      // First generate the inline operations for this anonymous array type.
      be_visitor_array_ci visitor (&ctx);

      if (node->accept (&visitor) == -1)
        {
          ACE_ERROR_RETURN ((LM_ERROR,
                             "(%N:%l) be_visitor_union_branch_public_ci::"
                             "visit_array - "
                             "codegen failed\n"),
                            -1);
        }
    }

  // For anonymous arrays, the type name has a _ prepended. We compute the
  // full_name with or without the underscore and use it later on.
  char fname [NAMEBUFSIZE];
  ACE_OS::memset (fname,
                  '\0',
                  NAMEBUFSIZE);

  // If bt is not a typedef and is defined inside the union
  if (bt->node_type () != AST_Decl::NT_typedef
      && bt->is_child (bu))
    {
      // For anonymous arrays ...
      // We have to generate a name for us that has an underscope prepended to
      // our local name. This needs to be inserted after the parents's name.

      if (bt->is_nested ())
        {
          be_decl *parent =
            be_scope::narrow_from_scope (bt->defined_in ())->decl ();
          ACE_OS::sprintf (fname,
                           "%s::_%s",
                           parent->full_name (),
                           bt->local_name ()->get_string ());
        }
      else
        {
          ACE_OS::sprintf (fname,
                           "_%s",
                           bt->full_name ());
        }
    }
  else
    {
      // Typedefed node.
      ACE_OS::sprintf (fname,
                       "%s",
                       bt->full_name ());
    }

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

  *os << "// Accessor to set the member." << be_nl
      << "ACE_INLINE" << be_nl
      << "void" << be_nl
      << bu->name () << "::" << ub->local_name () << " (" << fname
      << " val)" << be_nl
      << "{" << be_idt_nl
      << "// Set the discriminant value." << be_nl
      << "this->_reset (";

  if (ub->label ()->label_kind () == AST_UnionLabel::UL_label)
    {
      ub->gen_label_value (os);

      *os << ", 0);" << be_nl
          << "this->disc_ = ";

      ub->gen_label_value (os);
    }
  // Default label.
  else
    {
      ub->gen_default_label_value (os, bu);

      *os << ", 0);" << be_nl
          << "this->disc_ = ";

      ub->gen_default_label_value (os, bu);
    }

  *os << ";" << be_nl
      << "// Set the value." << be_nl
      << "this->u_." << ub->local_name () << "_ = "
      << fname << "_dup (val);" << be_uidt_nl
      << "}" << be_nl << be_nl;

  // Get method.
  *os << "// Retrieve the member." << be_nl
      << "ACE_INLINE" << be_nl
      << fname << "_slice *" << be_nl
      << bu->name () << "::" << ub->local_name () << " (void) const" << be_nl
      << "{" << be_idt_nl
      << "return this->u_." << ub->local_name () << "_;" << be_uidt_nl
      << "}";

  return 0;
}

int
be_visitor_union_branch_public_ci::visit_enum (be_enum *node)
{
  be_union_branch *ub = this->ctx_->be_node_as_union_branch ();
  be_union *bu = this->ctx_->be_scope_as_union ();
  be_type *bt;

  // heck if we are visiting this node via a visit to a typedef node.
  if (this->ctx_->alias ())
    {
      bt = this->ctx_->alias ();
    }
  else
    {
      bt = node;
    }

  if (!ub || !bu)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_union_branch_public_ci::"
                         "visit_enum - "
                         "bad context information\n"),
                        -1);
    }

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

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

  *os << "// Accessor to set the member." << be_nl
      << "ACE_INLINE" << be_nl
      << "void" << be_nl
      << bu->name () << "::" << ub->local_name () << " (" << bt->name ()
      << " val)" << be_nl
      << "{" << be_idt_nl
      << "// Set the discriminant value." << be_nl
      << "this->_reset (";

  if (ub->label ()->label_kind () == AST_UnionLabel::UL_label)
    {
      ub->gen_label_value (os);

      *os << ", 0);" << be_nl
          << "this->disc_ = ";

      ub->gen_label_value (os);
    }
  // Default label.
  else
    {
      ub->gen_default_label_value (os, bu);

      *os << ", 0);" << be_nl
          << "this->disc_ = ";

      ub->gen_default_label_value (os, bu);
    }

  *os << ";" << be_nl
      << "// Set the value." << be_nl
      << "this->u_." << ub->local_name () << "_ = val;" << be_uidt_nl
      << "}" << be_nl << be_nl;

  // Get method.
  *os << "// Retrieve the member." << be_nl
      << "ACE_INLINE" << be_nl
      << bt->name () << be_nl
      << bu->name () << "::" << ub->local_name () << " (void) const" << be_nl
      << "{" << be_idt_nl
      << "return this->u_." << ub->local_name () << "_;" << be_uidt_nl
      << "}";

  return 0;
}

int
be_visitor_union_branch_public_ci::visit_interface (be_interface *node)
{
  be_union_branch *ub = this->ctx_->be_node_as_union_branch ();
  be_union *bu = this->ctx_->be_scope_as_union ();
  be_type *bt;

  // Check if we are visiting this node via a visit to a typedef node.
  if (this->ctx_->alias ())
    {
      bt = this->ctx_->alias ();
    }
  else
    {
      bt = node;
    }

  if (!ub || !bu)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_union_branch_public_ci::"
                         "visit_interface - "
                         "bad context information\n"),
                        -1);
    }

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

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

  *os << "// Accessor to set the member." << be_nl
      << "ACE_INLINE" << be_nl
      << "void" << be_nl
      << bu->name () << "::" << ub->local_name () << " (" << bt->name ()
      << "_ptr val)" << be_nl
      << "{" << be_idt_nl
      << "// Set the discriminant value." << be_nl
      << "this->_reset (";

  if (ub->label ()->label_kind () == AST_UnionLabel::UL_label)
    {
      ub->gen_label_value (os);

      *os << ", 0);" << be_nl
          << "this->disc_ = ";

      ub->gen_label_value (os);
    }
  // Default label.
  else
    {
      ub->gen_default_label_value (os, bu);

      *os << ", 0);" << be_nl
          << "this->disc_ = ";

      ub->gen_default_label_value (os, bu);
    }

  idl_bool bt_is_defined = node->is_defined ();

  *os << ";" << be_nl
      << "typedef "
      << bt->nested_type_name (bu, "_var")
      << " OBJECT_FIELD;" << be_nl
      << "ACE_NEW (" << be_idt << be_idt_nl
      << "this->u_." << ub->local_name () << "_," << be_nl;

      if (bt_is_defined)
        {
          *os << "OBJECT_FIELD (" << be_idt << be_idt_nl
              << bt->name () << "::";
        }
      else
        {
          *os << "OBJECT_FIELD (" << be_idt << be_idt_nl
              << "TAO::Objref_Traits<" << node->name () << ">::tao";
        }

  *os << "_duplicate (val)" << be_uidt_nl << ")" << be_uidt << be_uidt_nl
      << ");" << be_uidt << be_uidt_nl
      << "}" << be_nl << be_nl;

  // Get method.
  *os << "// Retrieve the member." << be_nl
      << "ACE_INLINE" << be_nl
      << bt->name () << "_ptr " << be_nl
      << bu->name () << "::" << ub->local_name () << " (void) const" << be_nl
      << "{" << be_idt_nl
      << "return this->u_." << ub->local_name () << "_->ptr ();" << be_uidt_nl
      << "}";

  return 0;
}

int
be_visitor_union_branch_public_ci::visit_interface_fwd (be_interface_fwd *node)
{
  be_union_branch *ub = this->ctx_->be_node_as_union_branch ();
  be_union *bu = this->ctx_->be_scope_as_union ();
  be_type *bt;

  // Check if we are visiting this node via a visit to a typedef node.
  if (this->ctx_->alias ())
    {
      bt = this->ctx_->alias ();
    }
  else
    {
      bt = node;
    }

  if (!ub || !bu)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_union_branch_public_ci::"
                         "visit_interface_fwd - "
                         "bad context information\n"),
                        -1);
    }

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

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

  *os << "// Accessor to set the member." << be_nl
      << "ACE_INLINE" << be_nl
      << "void" << be_nl
      << bu->name () << "::" << ub->local_name () << " (" << bt->name ()
      << "_ptr val)" << be_nl
      << "{" << be_idt_nl
      << "// Set the discriminant value." << be_nl
      << "this->_reset (";

  if (ub->label ()->label_kind () == AST_UnionLabel::UL_label)
    {
      ub->gen_label_value (os);

      *os << ", 0);" << be_nl
          << "this->disc_ = ";

      ub->gen_label_value (os);
    }
  // Default label.
  else
    {
      ub->gen_default_label_value (os, bu);

      *os << ", 0);" << be_nl
          << "this->disc_ = ";

      ub->gen_default_label_value (os, bu);
    }

  idl_bool bt_is_defined = node->full_definition ()->is_defined ();

  *os << ";" << be_nl
      << "typedef "
      << bt->nested_type_name (bu, "_var")
      << " OBJECT_FIELD;" << be_nl
      << "ACE_NEW (" << be_idt << be_idt_nl
      << "this->u_." << ub->local_name () << "_," << be_nl;

      if (bt_is_defined)
        {
          *os << "OBJECT_FIELD (" << be_idt << be_idt_nl
              << bt->name () << "::";
        }
      else
        {
          *os << "OBJECT_FIELD (" << be_idt << be_idt_nl
              << "TAO::Objref_Traits<" << node->name () << ">::tao";
        }

  *os << "_duplicate (val)" << be_uidt_nl << ")" << be_uidt << be_uidt_nl
      << ");" << be_uidt << be_uidt_nl
      << "}" << be_nl << be_nl;

  // Get method.
  *os << "// Retrieve the member." << be_nl
      << "ACE_INLINE" << be_nl
      << bt->name () << "_ptr " << be_nl