# [derive(Clone)] Is Broken

Automatically deriving Clone is a convenience. You can and should write your own implementation for Clone whenever you need it and automatically derived implementation is insufficient.

But this issue makes it confusing & surprising when an automatically derived clone is sufficient and when its not. Its a silly extra rule that you have to memorise.

By the way, this issue also affects all of the other derivable traits in std - including PartialEq, Debug and others. Manually deriving all this stuff - especially Debug - is needless pain. Especially as your structs change and you need to (or forget to) maintain all this stuff.

Elegant software is measured in the number of lines of code you didn't need to write.