# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2017-01-12 20:05:46 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/819636507652882432) In reply to: [@pilky](http://twitter.com/pilky/status/819635473593274368) @pilky If you need to write it in Swift but be accessible to ObjC.... I'd probably do the Swift optimised version...