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//
// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// valuetype_obv__ch.cpp
//
// = DESCRIPTION
// Visitor generating code for Valuetypes in the client header
// OBV_ class
// (see C++ mapping OMG 20.17)
//
// = AUTHOR
// Torsten Kuepper <kuepper2@lfa.uni-wuppertal.de>,
// based on interface_ch.cpp from Aniruddha Gokhale
//
// ============================================================================
ACE_RCSID (be_visitor_valuetype,
valuetype_obv_ch,
"$Id$")
// ******************************************************
// Valuetype visitor for client header
// ******************************************************
be_visitor_valuetype_obv_ch::be_visitor_valuetype_obv_ch (
be_visitor_context *ctx
)
: be_visitor_valuetype (ctx)
{
}
be_visitor_valuetype_obv_ch::~be_visitor_valuetype_obv_ch (void)
{
}
// OBV_ class must be in OBV_ namespace.
int
be_visitor_valuetype_obv_ch::visit_valuetype (be_valuetype *node)
{
// Only visit non-abstract non-imported valuetype.
if (node->is_abstract () || node->imported ())
{
return 0;
}
TAO_OutStream *os = this->ctx_->stream ();
*os << be_nl << be_nl << "// TAO_IDL - Generated from" << be_nl
<< "// " << __FILE__ << ":" << __LINE__ ;
// OBV_ class maps only to a typedef if we are optimizing accessors.
if (node->opt_accessor ())
{
*os << be_nl << be_nl << "typedef " << node->full_name () << " ";
if (!node->is_nested ())
{
*os << "OBV_";
}
*os << node->local_name () << ";" << be_nl;
}
else
{
// STEP 1: Generate the class name and the class name we inherit.
os->gen_ifdef_macro (node->flat_name (), "_OBV");
*os << be_nl << be_nl << "// OBV_ class" << be_nl;
*os << "class " << be_global->stub_export_macro() << " ";;
if (!node->is_nested())
{
*os << "OBV_";
}
*os << node->local_name () << be_idt_nl
<< ": public virtual "
<< node->full_name ();
// STEP 1a (about which previous implementer forgot ):
// Generate inheritance from corresponding OBV_ classes.
//------>>>
// Here we need to be careful. There are few cases to consider:
//
// (1) We have VT with concrete factory and no inhereted VT with
// concrete factory then we need to mix-in RefCounter
//
// (2) We have VT with concerete factory and inheretence from
// another (not abstract or empty abstract <would like to
// know how to go there>) then its OBV_ already has mix-in
// (3) The rest. Don't need to bother about anything, just inherit
// whatever there is.
//
int i = 0;
AST_Interface *inherited = 0;
for (; i < node->n_inherits (); ++i)
{
inherited = node->inherits ()[i];
// We need only concrete valuetypes.
if (inherited->is_abstract ())
{
continue;
}
*os << "," << be_nl;
// dump the scoped name.
*os << " public virtual OBV_";
*os << inherited->full_name();
} // end of for loop
if (this->obv_need_ref_counter (node))
{
*os << "," << be_nl;
// dump the scoped name.
*os << " public virtual CORBA_DefaultValueRefCountBase";
}
*os << be_uidt_nl;
//------>>>
// STEP 2: Generate the body ==
*os << "{" << be_nl;
this->begin_public ();
*os << be_nl << "virtual ~";
if (! node->is_nested ())
{
*os << "OBV_";
}
*os << node->local_name () << " (void);";
// Generate code for the OBV_ class definition.
if (this->visit_valuetype_scope (node) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_valuetype_obv_ch::"
"visit_valuetype - "
"codegen for scope failed\n"),
-1);
}
// If we inherit from both CORBA::ValueBase and CORBA::AbstractBase,
// we have to add this to avoid ambiguity.
if (node->supports_abstract ())
{
*os << be_nl << be_nl << "// TAO_IDL - Generated from" << be_nl
<< "// " << __FILE__ << ":" << __LINE__ ;
*os << be_nl << be_nl << "virtual void _add_ref (void);" << be_nl;
*os << "virtual void _remove_ref (void);";
}
// Map fields to private data.
if (!node->opt_accessor ())
{
*os << be_nl << be_uidt_nl << "protected:" << be_idt_nl;
*os << "virtual CORBA::Boolean _tao_marshal__"
<< node->flat_name () << " (TAO_OutputCDR &);" << be_nl;
*os << "virtual CORBA::Boolean _tao_unmarshal__"
<< node->flat_name () << " (TAO_InputCDR &);" << be_nl;
*os << "CORBA::Boolean "
<< "_tao_marshal_state (TAO_OutputCDR &);" << be_nl
<< "CORBA::Boolean "
<< "_tao_unmarshal_state (TAO_InputCDR &);"
<< be_uidt_nl << be_nl;
*os << "private:" << be_idt;
this->gen_pd (node);
}
*os << be_uidt_nl;
*os << "};";
os->gen_endif ();
}
return 0;
}
int
be_visitor_valuetype_obv_ch::visit_field (be_field *node)
{
be_valuetype *vt = be_valuetype::narrow_from_scope (node->defined_in ());
if (!vt)
{
return -1;
}
// Only in OBV_ class, if we are not optimizing accessors (and modifiers).
if (!vt->opt_accessor ())
{
be_visitor_context ctx (*this->ctx_);
be_visitor_valuetype_field_ch visitor (&ctx);
visitor.setenclosings ("virtual ",";");
if (node->accept (&visitor) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_valuetype_obv_ch::"
"visit_field - codegen failed\n"),
-1);
}
}
return 0;
}
void
be_visitor_valuetype_obv_ch::begin_public (void)
{
TAO_OutStream *os = this->ctx_->stream ();
*os << "public:" << be_idt;
}
void
be_visitor_valuetype_obv_ch::begin_private (void)
{
TAO_OutStream *os = this->ctx_->stream ();
*os << be_uidt_nl << be_nl;
*os << "protected:" << be_idt;
}
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