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//
// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// cdr_op_cs.cpp
//
// = DESCRIPTION
// Visitor generating code for CDR operators for interfaces
//
// = AUTHOR
// Aniruddha Gokhale
//
// ============================================================================
#include "idl.h"
#include "idl_extern.h"
#include "be.h"
#include "be_visitor_interface.h"
ACE_RCSID(be_visitor_interface, cdr_op_cs, "$Id$")
// ***************************************************************************
// Interface visitor for generating CDR operator declarations in the client
// stubs file
// ***************************************************************************
be_visitor_interface_cdr_op_cs::be_visitor_interface_cdr_op_cs
(be_visitor_context *ctx)
: be_visitor_interface (ctx)
{
}
be_visitor_interface_cdr_op_cs::~be_visitor_interface_cdr_op_cs (void)
{
}
int
be_visitor_interface_cdr_op_cs::visit_interface (be_interface *node)
{
// already generated and/or we are imported. Don't do anything.
if (node->cli_stub_cdr_op_gen () || node->imported ())
return 0;
TAO_OutStream *os = this->ctx_->stream ();
// First generate code for our children. The reason we do this first is
// because the inlined code for our children must be available before we use
// it in our parent, but we must forward declare the parent
// operators, so code like this:
//
// // IDL
// interface Foo {
// exception Bar {Foo foo_member; };
// };
//
// can work properly (the Foo::Bar operators need the Foo operators
// defined).
//
// generate the CDR << and >> operator declarations
os->indent ();
*os << "ACE_INLINE CORBA::Boolean" << be_nl
<< "operator<< (" << be_idt << be_idt_nl
<< "TAO_OutputCDR &," << be_nl
<< "const " << node->name () << "_ptr" << be_uidt_nl
<< ");" << be_uidt_nl;
*os << "ACE_INLINE CORBA::Boolean" << be_nl
<< "operator>> (" << be_idt << be_idt_nl
<< "TAO_InputCDR &," << be_nl
<< node->name () << "_ptr &" << be_uidt_nl
<< ");" << be_uidt << "\n";
// Now it really the type to generate the operators for the members
// of the interface...
// set the substate as generating code for the types defined in our scope
this->ctx_->sub_state(TAO_CodeGen::TAO_CDR_SCOPE);
// all we have to do is to visit the scope and generate code
if (this->visit_scope (node) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_interface_cdr_op_cs"
"::visit_interface - "
"codegen for scope failed\n"), -1);
}
// set the sub state as generating code for the output operator
this->ctx_->sub_state(TAO_CodeGen::TAO_CDR_OUTPUT);
*os << "ACE_INLINE CORBA::Boolean" << be_nl
<< "operator<< (" << be_idt << be_idt_nl
<< "TAO_OutputCDR &strm," << be_nl
<< "const " << node->name () << "_ptr _tao_objref" << be_uidt_nl
<< ")" << be_uidt_nl
<< "{" << be_idt_nl;
// hand over the encoding to the TAO's internal engine
// *os << "CORBA::Environment env;" << be_nl;
*os << "TAO_TRY" << be_nl
<< "{" << be_idt_nl;
// resolve the nastiness created due to casting to void* and then to
// CORBA::Object_ptr
*os << "CORBA::Object_ptr _tao_corba_obj = _tao_objref;" << be_nl;
*os << "if (TAO_MARSHAL_OBJREF::instance ()->" << be_nl
<< " encode (0, &_tao_corba_obj, 0, &strm, TAO_TRY_ENV) == "
<< be_nl
<< " CORBA::TypeCode::TRAVERSE_CONTINUE)" << be_idt_nl
<< "return 1;" << be_uidt_nl
<< "TAO_CHECK_ENV;" << be_uidt_nl
<< "}" << be_nl
<< "TAO_CATCHANY" << be_nl
<< "{" << be_idt_nl
<< "return 0;" << be_uidt_nl
<< "}" << be_nl
<< "TAO_ENDTRY;" << be_nl
<< "return 0;" << be_uidt_nl;
*os << "}\n\n";
// set the substate as generating code for the input operator
this->ctx_->sub_state(TAO_CodeGen::TAO_CDR_INPUT);
*os << "ACE_INLINE CORBA::Boolean" << be_nl
<< "operator>> (" << be_idt << be_idt_nl
<< "TAO_InputCDR &strm," << be_nl
<< node->name () << "_ptr &_tao_objref" << be_uidt_nl
<< ")" << be_uidt_nl
<< "{" << be_idt_nl;
// hand over to the TAO's internal marshaling engine
// *os << "CORBA::Environment env;" << be_nl;
*os << "TAO_TRY" << be_nl
<< "{" << be_idt_nl;
*os << "CORBA::Object_ptr obj;" << be_nl;
*os << "if (TAO_MARSHAL_OBJREF::instance ()->" << be_nl
<< " decode (0, &obj, 0, &strm, TAO_TRY_ENV) == " << be_nl
<< " CORBA::TypeCode::TRAVERSE_CONTINUE)" << be_nl
<< "{" << be_idt_nl;
*os << "TAO_CHECK_ENV;" << be_nl;
*os << "// narrow to the right type" << be_nl;
*os << "_tao_objref = " << node->name ()
<< "::_narrow (obj, TAO_TRY_ENV);" << be_nl;
*os << "TAO_CHECK_ENV;" << be_nl;
*os << "CORBA::release (obj);" << be_nl;
*os << "return 1;" << be_uidt_nl;
*os << "}" << be_nl;
*os << "return 0; // error" << be_uidt_nl;
*os << "}" << be_nl
<< "TAO_CATCHANY" << be_nl
<< "{" << be_idt_nl
<< "return 0;" << be_uidt_nl
<< "}" << be_nl
<< "TAO_ENDTRY;" << be_nl
<< "return 0;" << be_uidt_nl;
*os << "}\n\n";
node->cli_stub_cdr_op_gen (1);
return 0;
}
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