TYPEMAP
Sword_Key *			O_OBJECT
Sword_Manager *			O_OBJECT
Sword_Module *			O_OBJECT

INPUT
O_OBJECT
	if (sv_derived_from($arg, \"${(my $ntt=$ntype)=~s/_/::/g;$ntt=~s/Ptr$//;\$ntt}\")) {
		IV tmp = SvIV((SV*)SvRV($arg));
		$var = INT2PTR($type, tmp);
	}
	else
		croak(\"$var is not of type ${(my $ntt=$ntype)=~s/_/::/g;$ntt=~s/Ptr$//;\$ntt}\")

OUTPUT
O_OBJECT
	sv_setref_pv($arg, \"${(my $ntt=$ntype)=~s/_/::/g;$ntt=~s/Ptr$//;\$ntt}\", (void*)$var);