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//
// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// interface_cs.cpp
//
// = DESCRIPTION
// Visitor generating code for Interfaces in the client stubs file.
//
// = AUTHOR
// Aniruddha Gokhale
//
// ============================================================================
#include "idl.h"
#include "idl_extern.h"
#include "be.h"
#include "be_visitor_interface.h"
ACE_RCSID(be_visitor_interface, interface_cs, "$Id$")
// ************************************************************
// Interface visitor for client stubs
// ************************************************************
be_visitor_interface_cs::be_visitor_interface_cs (be_visitor_context *ctx)
: be_visitor_interface (ctx)
{
}
be_visitor_interface_cs::~be_visitor_interface_cs (void)
{
}
int
be_visitor_interface_cs::visit_interface (be_interface *node)
{
TAO_OutStream *os; // output stream
if (node->cli_stub_gen () || node->imported ())
return 0;
os = this->ctx_->stream ();
os->indent (); // start with whatever indentation level we are at
// first generate the code for the static methods
// The _duplicate method
*os << node->name () << "_ptr " << node->name () << "::_duplicate ("
<< node->name () << "_ptr obj)" << be_nl;
*os << "{\n";
os->incr_indent ();
*os << "if (!CORBA::is_nil (obj))\n";
os->incr_indent ();
*os << "obj->_incr_refcnt ();\n";
os->decr_indent ();
*os << be_nl;
*os << "return obj;\n";
os->decr_indent ();
*os << "} // end of _duplicate" << be_nl << be_nl;
// The _narrow method
*os << node->name () << "_ptr " << node->name ()
<< "::_narrow (" << be_idt << be_idt_nl
<< "CORBA::Object_ptr obj," << be_nl
<< "CORBA::Environment &env" << be_uidt_nl
<< ")" << be_uidt_nl
<< "{" << be_idt_nl
<< "if (CORBA::is_nil (obj))" << be_idt_nl
<< "return " << node->name () << "::_nil ();" << be_uidt_nl
<< "if (!obj->_is_a (\"" << node->repoID () << "\", env))"
<< be_idt_nl
<< "return " << node->name () << "::_nil ();" << be_uidt_nl;
*os << "STUB_Object* stub = obj->_stubobj ();" << be_nl
<< "stub->_incr_refcnt ();" << be_nl;
*os << "if (!obj->_is_collocated ()" << be_idt << be_idt << be_idt_nl
<< " || !obj->_servant()" << be_nl
<< " || obj->_servant()->_downcast (\""
<< node->repoID () << "\") == 0" << be_uidt_nl
<< ")" << be_uidt << be_uidt_nl
<< "{" << be_idt_nl;
*os << "return new "
<< node->name () << "(stub);" << be_uidt_nl
<< "}" << be_nl;
*os << "void* servant = obj->_servant ()->_downcast (\""
<< node->repoID () << "\");" << be_nl
<< "return new ";
// This may be necessary to work around a GCC compiler bug!
const char *skel_name = node->full_skel_name ();
const char *coll_name = node->full_coll_name ();
assert (coll_name != 0);
*os << coll_name << "(" << be_idt << be_idt_nl
<< "ACE_reinterpret_cast(" << skel_name
<< "_ptr, servant)," << be_nl
<< "stub" << be_uidt_nl
<< ");" << be_uidt << be_uidt_nl
<< "}" << be_nl << be_nl;
// _nil method
*os << node->name () << "_ptr "
<< node->name () << "::_nil (void)" << be_nl
<< "{" << be_idt_nl
<< "return (" << node->name () << "_ptr)0;" << be_uidt_nl
<< "}" << be_nl << be_nl;
// generate code for the elements of the interface
if (this->visit_scope (node) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_interface_cs::"
"visit_interface - "
"codegen for scope failed\n"), -1);
}
// generate the is_a method
os->indent ();
*os << "CORBA::Boolean " << node->name () << "::_is_a (" <<
"const CORBA::Char *value, CORBA::Environment &env)" << be_nl;
*os << "{\n";
os->incr_indent ();
*os << "if (\n";
os->incr_indent (0);
if (node->traverse_inheritance_graph (be_interface::is_a_helper, os) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_interface_cs::"
"visit_interface - "
"_is_a method codegen failed\n"), -1);
}
os->indent ();
*os << "(!ACE_OS::strcmp ((char *)value, CORBA::_tc_Object->id (env))))\n";
*os << " return 1; // success using local knowledge\n";
os->decr_indent ();
*os << "else" << be_nl;
*os << " return this->CORBA_Object::_is_a (value, env); // remote call\n";
os->decr_indent ();
*os << "}\n\n";
os->indent ();
*os << "const char* " << node->name ()
<< "::_interface_repository_id (void) const"
<< be_nl
<< "{" << be_idt_nl
<< "return \"" << node->repoID () << "\";" << be_uidt_nl
<< "}\n\n";
// by using a visitor to declare and define the TypeCode, we have the
// added advantage to conditionally not generate any code. This will be
// based on the command line options. This is still TO-DO
be_visitor *visitor;
be_visitor_context ctx (*this->ctx_);
ctx.state (TAO_CodeGen::TAO_TYPECODE_DEFN);
visitor = tao_cg->make_visitor (&ctx);
if (!visitor || (node->accept (visitor) == -1))
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_interface_cs::"
"visit_interface - "
"TypeCode definition failed\n"
), -1);
}
return 0;
}
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