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//
// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// interface_sh.cpp
//
// = DESCRIPTION
// Visitor generating code for Interfaces in the server header
//
// = AUTHOR
// Aniruddha Gokhale
//
// ============================================================================
#include "idl.h"
#include "idl_extern.h"
#include "be.h"
#include "be_visitor_interface.h"
ACE_RCSID(be_visitor_interface, interface_sh, "$Id$")
// ************************************************************
// Interface visitor for server header
// ************************************************************
be_visitor_interface_sh::be_visitor_interface_sh (be_visitor_context *ctx)
: be_visitor_interface (ctx)
{
}
be_visitor_interface_sh::~be_visitor_interface_sh (void)
{
}
int
be_visitor_interface_sh::visit_interface (be_interface *node)
{
TAO_OutStream *os; // output stream
long i; // loop index
static char namebuf [NAMEBUFSIZE]; // holds the class name
if (node->srv_hdr_gen () || node->imported ())
return 0;
ACE_OS::memset (namebuf, '\0', NAMEBUFSIZE);
os = this->ctx_->stream ();
// generate the skeleton class name
os->indent (); // start with whatever indentation level we are at
// we shall have a POA_ prefix only if we are at the topmost level
if (!node->is_nested ())
{
// we are outermost
ACE_OS::sprintf (namebuf, "POA_%s", node->local_name ()->get_string ());
}
else
{
ACE_OS::sprintf (namebuf, "%s", node->local_name ()->get_string ());
}
*os << "class " << namebuf << ";" << be_nl;
// generate the _ptr declaration
*os << "typedef " << namebuf << " *" << namebuf
<< "_ptr;" << be_nl;
// now generate the class definition
*os << "class " << idl_global->export_macro ()
<< " " << namebuf << " : ";
if (node->n_inherits () > 0)
{
// this interface inherits from other interfaces
be_interface *intf; // inherited interface
*os << "public virtual ";
intf = be_interface::narrow_from_decl (node->inherits ()[0]);
*os << intf->relative_skel_name (node->full_skel_name ());
for (i = 1; i < node->n_inherits (); i++)
{
*os << ", public virtual ";
intf = be_interface::narrow_from_decl (node->inherits ()[i]);
*os << intf->relative_skel_name (node->full_skel_name ());
} // end of for loop
}
else
{
// We don't inherit from another user defined object, hence our
// base class is the ServantBase class.
*os << " public virtual PortableServer::ServantBase";
}
*os << be_nl
<< "{" << be_nl
<< "protected:" << be_idt_nl
<< namebuf << " (void);" << be_uidt_nl
<< "public:" << be_idt_nl
<< namebuf << " (" << namebuf << "& rhs);" << be_nl
<< "virtual ~" << namebuf << " (void);" << be_nl;
*os << "virtual CORBA::Boolean _is_a (" << be_idt << be_idt_nl
<< "const char* logical_type_id," << be_nl
<< "CORBA::Environment &_tao_environment = " << be_idt_nl
<< "CORBA::Environment::default_environment ()"
<< be_uidt << be_uidt_nl
<< ");" << be_uidt_nl;
*os << "virtual void* _downcast (" << be_idt << be_idt_nl
<< "const char* logical_type_id" << be_uidt_nl
<< ");\n" << be_uidt;
// generate code for elements in the scope (e.g., operations)
if (this->visit_scope (node) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"be_visitor_interface_sh::"
"visit_interface - "
"codegen for scope failed\n"),
-1);
}
// add a skeleton for our _is_a method
os->indent ();
*os << "static void _is_a_skel (" << be_idt << be_idt_nl
<< "CORBA::ServerRequest &req," << be_nl
<< "void *obj," << be_nl
<< "void *context," << be_nl
<< "CORBA::Environment &_tao_enviroment = " << be_idt_nl
<< "CORBA::Environment::default_environment ()"
<< be_uidt << be_uidt_nl
<< ");" << be_uidt << "\n\n";
// add a skeleton for our _non_existent method
os->indent ();
*os << "static void _non_existent_skel (" << be_idt << be_idt_nl
<< "CORBA::ServerRequest &req," << be_nl
<< "void *obj," << be_nl
<< "void *context," << be_nl
<< "CORBA::Environment &_tao_enviroment = " << be_idt_nl
<< "CORBA::Environment::default_environment ()"
<< be_uidt << be_uidt_nl
<< ");" << be_uidt << "\n\n";
// add a method that says whether we are involved in a multiple inheritance
// or not
os->indent ();
*os << "CORBA::Boolean in_mult_inheritance (void);\n\n";
// generate skeletons for operations of our base classes. These skeletons
// just cast the pointer to the appropriate type before invoking the call
if (node->traverse_inheritance_graph (be_interface::gen_skel_helper, os) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"be_visitor_interface_sh::"
"visit_interface - "
"inheritance graph traversal failed\n"),
-1);
}
// add the dispatch method
os->indent ();
*os << "virtual void _dispatch (" << be_idt << be_idt_nl
<< "CORBA::ServerRequest &_tao_req," << be_nl
<< "void *_tao_context," << be_nl
<< "CORBA::Environment &_tao_env = " << be_idt_nl
<< "CORBA::Environment::default_environment ()"
<< be_uidt << be_uidt_nl
<< ");" << be_uidt << "\n\n";
// Print out the _this() method.
os->indent ();
*os << node->name () << " *_this (" << be_idt << be_idt_nl
<< "CORBA::Environment &_tao_environment = " << be_idt_nl
<< "CORBA::Environment::default_environment ()"
<< be_uidt << be_uidt_nl
<< ");" << be_uidt << "\n";
// the _interface_repository_id method
os->indent ();
*os << "virtual const char* _interface_repository_id (void) const;\n";
os->decr_indent ();
*os << "};\n\n";
// generate the collocated class
be_visitor_context ctx (*this->ctx_);
ctx.state (TAO_CodeGen::TAO_INTERFACE_COLLOCATED_SH);
be_visitor *visitor = tao_cg->make_visitor (&ctx);
if (!visitor || (node->accept (visitor) == -1))
{
delete visitor;
ACE_ERROR_RETURN ((LM_ERROR,
"be_visitor_interface_sh::"
"visit_interface - "
"codegen for collocated class failed\n"),
-1);
}
// generate the TIE class
ctx = *this->ctx_;
ctx.state (TAO_CodeGen::TAO_INTERFACE_TIE_SH);
visitor = tao_cg->make_visitor (&ctx);
if (!visitor || (node->accept (visitor) == -1))
{
delete visitor;
ACE_ERROR_RETURN ((LM_ERROR,
"be_visitor_interface_sh::"
"visit_interface - "
"codegen for TIE class failed\n"),
-1);
}
*os << "\n";
ctx.stream (tao_cg->server_template_header ());
return 0;
}
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