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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;
be_type *bt;
// set the right type;
if (this->ctx_->alias ())
bt = this->ctx_->alias ();
else
bt = node;
os = this->ctx_->stream ();
os->indent (); // start with whatever indentation level we are at
// first generate the code for the static methods
*os << "void "
<< node->name () << "::_tao_any_destructor (void *x)" << be_nl
<< "{" << be_idt_nl
<< node->local_name () << " *tmp = ACE_static_cast ("
<< node->local_name () << "*,x);" << be_nl
<< "CORBA::release (tmp);" << be_uidt_nl
<< "}\n" << be_nl;
// The _narrow method
*os << node->full_name () << "_ptr " << node->full_name ()
<< "::_narrow (" << be_idt << be_idt_nl
<< "CORBA::Object_ptr obj," << be_nl
<< "CORBA::Environment &ACE_TRY_ENV" << be_uidt_nl
<< ")" << be_uidt_nl
<< "{" << be_idt_nl
<< "if (CORBA::is_nil (obj))" << be_idt_nl
<< "return " << bt->nested_type_name (this->ctx_->scope ())
<< "::_nil ();" << be_uidt_nl
<< "CORBA::Boolean is_a = obj->_is_a (\""
<< node->repoID () << "\", ACE_TRY_ENV);" << be_nl
<< "ACE_CHECK_RETURN (" << bt->nested_type_name (this->ctx_->scope ())
<< "::_nil ());" << be_nl
<< "if (is_a == 0)" << be_idt_nl
<< "return " << bt->nested_type_name (this->ctx_->scope ())
<< "::_nil ();" << be_uidt_nl;
*os << "return " << bt->nested_type_name (this->ctx_->scope ())
<< "::_unchecked_narrow (obj, ACE_TRY_ENV);" << be_uidt_nl
<< "}" << be_nl << be_nl;
*os << node->full_name () << "_ptr " << node->full_name ()
<< "::_unchecked_narrow (" << be_idt << be_idt_nl
<< "CORBA::Object_ptr obj," << be_nl
<< "CORBA::Environment &";
if (idl_global->gen_locality_constraint ())
*os << " ACE_TRY_ENV";
*os << be_uidt_nl
<< ")" << be_uidt_nl
<< "{" << be_idt_nl;
// The _unchecked_narrow method
if (!idl_global->gen_locality_constraint ())
{
*os << "if (CORBA::is_nil (obj))" << be_idt_nl
<< "return " << bt->nested_type_name (this->ctx_->scope ())
<< "::_nil ();" << be_uidt_nl;
*os << "TAO_Stub* stub = obj->_stubobj ();" << be_nl
<< "if (stub)" << be_idt_nl
<< "stub->_incr_refcnt ();" << be_uidt_nl
// Declare the default proxy.
<< bt->nested_type_name (this->ctx_->scope ())
<< "_ptr default_proxy = "
<< bt->nested_type_name (this->ctx_->scope ())
<<"::_nil ();" << be_nl;
// If the policy didtates that the proxy be collocated, use the
// function to create one.
*os << "if (obj->_is_collocated () && _TAO_collocation_"
<< node->flat_name () << "_Stub_Factory_function_pointer != 0)"
<< be_idt_nl << "{"<<be_idt_nl
<< "default_proxy = _TAO_collocation_"<< node->flat_name ()
<< "_Stub_Factory_function_pointer (obj);"
<< be_uidt_nl<<"}"<<be_uidt_nl;
// The default proxy will either be returned else be transformed to
// a smart one!
*os << "if (CORBA::is_nil (default_proxy))" << be_idt_nl
<< "ACE_NEW_RETURN (default_proxy, "
<< bt->nested_type_name (this->ctx_->scope ())
<< " (stub), " << bt->nested_type_name (this->ctx_->scope ())
<< "::_nil ());"<< be_uidt_nl
<< "return TAO_" << node->flat_name ()
<< "_PROXY_FACTORY_ADAPTER::instance ()->create_proxy (default_proxy);"
<< be_uidt_nl;
}
else
{
// _narrow implementation for locality constraint object.
*os << "void *servant = 0;" << be_nl
<< "if (!obj->_is_collocated ()" << be_idt << be_idt << be_idt_nl
<< "|| !obj->_servant ()" << be_nl
<< "|| (servant = obj->_servant()->_downcast (\""
<< node->repoID () << "\")) == 0" << be_uidt_nl
<< ")" << be_uidt_nl
<< "ACE_THROW_RETURN (CORBA::MARSHAL (), "
<< bt->nested_type_name (this->ctx_->scope ())
<< "::_nil ());" << be_uidt_nl;
// Locality constraint objects alway use "direct" collocated
// implementation.
*os << node->full_name () << "_ptr retval = 0;" << be_nl
<< "ACE_NEW_RETURN (" << be_idt << be_idt_nl
<< "retval," << be_nl
<< node->full_coll_name (be_interface::DIRECT) << " ("
<< "ACE_reinterpret_cast (POA_"
<< bt->nested_type_name (this->ctx_->scope ())
<< "_ptr, servant), 0)," << be_nl
<< "0" << be_uidt_nl << ");" << be_uidt_nl
<< "return retval;" << be_uidt_nl;
}
*os << "}\n" << be_nl;
// The _duplicate method
*os << node->full_name () << "_ptr " << be_nl
<< node->full_name () << "::_duplicate ("
<< bt->nested_type_name (this->ctx_->scope ())
<< "_ptr obj)" << be_nl
<< "{" << be_idt_nl
<< "if (!CORBA::is_nil (obj))" << be_idt_nl
<< "obj->_add_ref ();" << be_uidt_nl
<< "return obj;" << 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->full_name () << "::_is_a (" <<
"const CORBA::Char *value, CORBA::Environment &ACE_TRY_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, \"IDL:omg.org/CORBA/Object:1.0\")))\n";
*os << " return 1; // success using local knowledge\n";
os->decr_indent ();
*os << "else" << be_nl;
*os << " return this->CORBA_Object::_is_a (value, ACE_TRY_ENV);\n";
os->decr_indent ();
*os << "}\n\n";
os->indent ();
*os << "const char* " << node->full_name ()
<< "::_interface_repository_id (void) const"
<< be_nl
<< "{" << be_idt_nl
<< "return \"" << node->repoID () << "\";" << be_uidt_nl
<< "}\n\n";
// Smart Proxy classes
be_visitor_context ctx (*this->ctx_);
be_visitor *visitor = 0;
ctx.state (TAO_CodeGen::TAO_INTERFACE_SMART_PROXY_CS);
visitor = tao_cg->make_visitor (&ctx);
if (!visitor || (node->accept (visitor) == -1))
{
delete visitor;
ACE_ERROR_RETURN ((LM_ERROR,
"be_visitor_interface_cs::"
"visit_interface - "
"codegen for smart proxy classes failed\n"),
-1);
}
delete visitor;
visitor = 0;
// 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
ctx.state (TAO_CodeGen::TAO_TYPECODE_DEFN);
ctx.sub_state (TAO_CodeGen::TAO_TC_DEFN_TYPECODE);
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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