SplFileObject and streams

Hi internals, I've been following the resolution of this bug: https://bugs.php.net/bug.php?id=44392 and it seems that there is no safe way to expose the internal SplFileObject filepointer. So I was wondering if we could not do things differently and instead of trying to expose the internal file pointer make any stream_* function which accept a resource stream as parameter accept a SplFileObject. By doing so we could resolve a couple of issues I encountered while using this SPL object without adding any new method to the class we could: - get informations about the object seekable and open mode status using stream_get_meta_data. - append/prepend stream filters without using the php://filter/ hack which has its own limitations. What do you think ?