TYPEMAP
RDB_parser *	T_REDISDB_PARSER

INPUT
T_REDISDB_PARSER
	if(sv_derived_from($arg, \"RedisDB::Parser::XS\")) {
		IV tmp = SvIV((SV*)SvRV($arg));
		$var = INT2PTR($type, tmp);
	}
	else {
		croak(\"$var is not of type RedisDB::Parser::XS\");
	}

OUTPUT
T_REDISDB_PARSER
	sv_setref_pv($arg, \"RedisDB::Parser::XS\", (void *)$var);