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//
// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// marshal_cs.cpp
//
// = DESCRIPTION
// Concrete visitor for valuetypes.
// This one provides code generation for marshalling.
//
// = AUTHOR
// Torsten Kuepper <kuepper2@lfa.uni-wuppertal.de>
//
// ============================================================================
#include "idl.h"
#include "idl_extern.h"
#include "be.h"
#include "be_visitor_valuetype.h"
ACE_RCSID(be_visitor_valuetype, marshal_cs, "$Id$")
be_visitor_valuetype_marshal_cs::be_visitor_valuetype_marshal_cs
(be_visitor_context *ctx)
: be_visitor_scope (ctx)
{
}
be_visitor_valuetype_marshal_cs::~be_visitor_valuetype_marshal_cs (void)
{
}
int
be_visitor_valuetype_marshal_cs::visit_valuetype (be_valuetype *node)
{
TAO_OutStream *os = this->ctx_->stream ();
this->ctx_->sub_state(TAO_CodeGen::TAO_CDR_OUTPUT);
os->indent ();
*os << "ACE_INLINE CORBA::Boolean" << be_nl;
this->class_name (node, os);
*os << "::_tao_marshal_state (TAO_OutputCDR &strm)" << be_nl
<< "{" << be_idt_nl;
be_valuetype *inh = node->statefull_inherit ();
if (inh)
{
if (inh->opt_accessor ())
{
*os << "if (!";
this->class_name (inh, os);
*os << "::_tao_marshal_state (strm)) return 0;" << be_nl;
}
else // only can access base class via virtual function
{
*os << "if (!this->_tao_marshal__"
<< inh->flat_name ()
<< " (strm)) return 0;" << be_nl;
}
}
{ // array _forany
be_visitor_context* new_ctx =
new be_visitor_context (*this->ctx_);
be_visitor_valuetype_field_cdr_decl field_decl (new_ctx);
field_decl.visit_scope (node);
}
*os << "if (" << be_idt_nl;
// all we have to do is to visit the scope and generate code
this->gen_fields (node, *this->ctx_);
*os << be_uidt_nl << ")"
<< be_idt_nl
<< "return 1;" << be_uidt_nl
<< "else" << be_idt_nl
<< "return 0;" << be_uidt_nl << be_uidt_nl
<< "}\n\n";
// set the substate as generating code for the input operator
this->ctx_->sub_state(TAO_CodeGen::TAO_CDR_INPUT);
os->indent ();
*os << "ACE_INLINE CORBA::Boolean" << be_nl;
this->class_name (node, os);
*os << "::_tao_unmarshal_state (TAO_InputCDR &strm)" << be_nl
<< "{" << be_idt_nl;
inh = node->statefull_inherit ();
if (inh)
{
if (inh->opt_accessor ())
{
*os << "if (!";
this->class_name (inh, os);
*os << "::_tao_unmarshal_state (strm)) return 0;" << be_nl;
}
else // only can access base class via virtual function
{
*os << "if (!this->_tao_unmarshal__"
<< inh->flat_name ()
<< " (strm)) return 0;" << be_nl;
}
}
{ // array _forany
be_visitor_context* new_ctx =
new be_visitor_context (*this->ctx_);
be_visitor_valuetype_field_cdr_decl field_decl (new_ctx);
field_decl.visit_scope (node);
}
*os << "if (" << be_idt_nl;
// all we have to do is to visit the scope and generate code
this->gen_fields (node, *this->ctx_);
*os << be_uidt_nl << ")"
<< be_idt_nl
<< "return 1;" << be_uidt_nl
<< "else" << be_idt_nl
<< "return 0;" << be_uidt_nl << be_uidt_nl
<< "}\n\n";
return 0;
}
// retrieve the fully scoped skeleton name
void
be_visitor_valuetype_marshal_cs::class_name (be_valuetype *node,
TAO_OutStream *os)
{
if (node->opt_accessor ())
*os << node->name ();
else
*os << node->full_obv_skel_name ();
}
// ops for field marshal
int
be_visitor_valuetype_marshal_cs::gen_fields (be_valuetype *node,
be_visitor_context &ctx)
{
int n_processed = 0;
TAO_OutStream *os = ctx.stream ();
// proceed if the number of members in our scope is greater than 0
if (node->nmembers () > 0)
{
// initialize an iterator to iterate thru our scope
UTL_ScopeActiveIterator *si;
ACE_NEW_RETURN (si,
UTL_ScopeActiveIterator (node,
UTL_Scope::IK_decls),
-1);
this->elem_number_ = 0;
// continue until each field is visited
for (;!si->is_done ();si->next())
{
AST_Decl *d = si->item ();
if (!d)
{
delete si;
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_scope::visit_scope - "
"bad node in this scope\n"), -1);
}
be_field *field = be_field::narrow_from_decl (d);
if (field)
{
if (n_processed > 0)
*os << " &&" << be_nl;
++n_processed;
be_visitor_context* new_ctx =
new be_visitor_context (ctx);
be_visitor_valuetype_field_cdr_ci visitor (new_ctx);
visitor.pre_ = node->field_pd_prefix ();
visitor.post_ = node->field_pd_postfix ();
if (visitor.visit_field (field) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_valuetype_marshal_cs::"
"visit_valuetype - "
"codegen for scope failed\n"), -1);
}
}
} // end of for loop
delete si;
}
if (n_processed == 0)
*os << "1";
return 0;
}
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