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//
// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// cdr_op_ci.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_ci, "$Id$")
// ***************************************************************************
// Interface visitor for generating CDR operator declarations in the client
// stubs file
// ***************************************************************************
be_visitor_interface_cdr_op_ci::be_visitor_interface_cdr_op_ci
(be_visitor_context *ctx)
: be_visitor_interface (ctx)
{
}
be_visitor_interface_cdr_op_ci::~be_visitor_interface_cdr_op_ci (void)
{
}
int
be_visitor_interface_cdr_op_ci::visit_interface (be_interface *node)
{
// No CDR operations for locality constraint interfaces.
if (idl_global->gen_locality_constraint ())
return 0;
// already generated and/or we are imported. Don't do anything.
if (node->cli_inline_cdr_op_gen () || node->imported ())
return 0;
TAO_OutStream *os = this->ctx_->stream ();
#if 0
int i;
int to_do;
// Decide how much code to produce
if (idl_global->ami_call_back () == I_TRUE)
to_do = 3;
else
to_do = 1;
be_interface_type_strategy *old_strategy = 0;
for (i = 0; i < to_do; i++)
{
switch (i)
{
case 0:
break;
case 1:
old_strategy =
node->set_strategy (new be_interface_ami_handler_strategy (node));
break;
case 2:
delete node->set_strategy (old_strategy);
{
be_valuetype *excep_holder = new be_valuetype (node->name (),
0,
0,
0,
0);
excep_holder->set_name (node->name ());
old_strategy = excep_holder->set_strategy (
new be_interface_ami_exception_holder_strategy (excep_holder));
be_type *bt = be_type::narrow_from_decl (excep_holder);
// grab the right visitor to generate the code
be_visitor_context ctx (*this->ctx_);
ctx.state (TAO_CodeGen::TAO_VALUETYPE_CDR_OP_CI);
be_visitor *visitor = tao_cg->make_visitor (&ctx);
if (!visitor)
{
ACE_ERROR_RETURN ((LM_ERROR,
"be_visitor_operation_cdr_op_ci::"
"visit_operation - "
"Bad visitor to return type\n"),
-1);
}
if (bt->accept (visitor) == -1)
{
delete visitor;
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_operation_cdr_op_ci::"
"visit_interface - "
"codegen for return type failed\n"),
-1);
}
delete visitor;
//delete excep_holder;
delete node->set_strategy (old_strategy);
}
return 0;
default:
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_interface_cdr_op_ci::visit_interface - "
"codegen failed - invalid state\n"), -1);
}
#endif /* 0 */
// 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->full_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->full_name () << "_ptr &" << be_uidt_nl
<< ");" << be_uidt << "\n\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_ci"
"::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);
// @@ TODO don't use the IIOP interpreter here, we should use << and
// >> operators, or even the operator for the base CORBA::Object!!
*os << "ACE_INLINE CORBA::Boolean" << be_nl
<< "operator<< (" << be_idt << be_idt_nl
<< "TAO_OutputCDR &strm," << be_nl
<< "const " << node->full_name () << "_ptr _tao_objref" << be_uidt_nl
<< ")" << be_uidt_nl
<< "{" << be_idt_nl;
*os << "CORBA::Object_ptr _tao_corba_obj = _tao_objref;" << be_nl;
*os << "return (strm << _tao_corba_obj);" << be_uidt_nl
<< "}\n\n";
// set the substate as generating code for the input operator
this->ctx_->sub_state(TAO_CodeGen::TAO_CDR_INPUT);
// @@ TODO don't use the IIOP interpreter here, we should use << and
// >> operators, or even the operator for the base CORBA::Object!!
*os << "ACE_INLINE CORBA::Boolean" << be_nl
<< "operator>> (" << be_idt << be_idt_nl
<< "TAO_InputCDR &strm," << be_nl
<< node->full_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 << "ACE_TRY_NEW_ENV" << be_nl
<< "{" << be_idt_nl;
*os << "CORBA::Object_var obj;" << be_nl;
*os << "if ((strm >> obj.inout ()) == 0)" << be_idt_nl
<< "return 0;" << be_uidt_nl
<< "// narrow to the right type" << be_nl;
*os << "_tao_objref =" << be_idt_nl
<< node->full_name () << "::_narrow (" << be_idt << be_idt_nl
<< "obj.in ()," << be_nl
<< "ACE_TRY_ENV" << be_uidt_nl
<< ");" << be_uidt << be_uidt_nl;
*os << "ACE_TRY_CHECK;" << be_nl;
*os << "return 1;" << be_uidt_nl;
*os << "}" << be_nl
<< "ACE_CATCHANY" << be_nl
<< "{" << be_idt_nl
<< "// do nothing" << be_uidt_nl
<< "}" << be_nl
<< "ACE_ENDTRY;" << be_nl
<< "return 0;" << be_uidt_nl;
*os << "}\n\n";
node->cli_inline_cdr_op_gen (1);
#if 0
switch (i)
{
case 0:
case 1:
case 2:
break;
default:
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_interface_cdr_op_ci::visit_interface - "
"codegen failed - invalid state\n"), -1);
}
} // for
#endif /* 0 */
return 0;
}
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