About ref used for performance reasons with struct

[Namespace]

> 2) Kenji's 'auto ref' proposal getting pulled in the near 
> future so that we can manually prevent argument copying for the 
> remaining unsafe lvalue cases.

Maybe in 2065 - if we're lucky. ;)
Read also in my thread that I had posted earlier: auto ref - 
again.
There are also one of the rare responses of Andrei to this topic.
This problem isn't solved any time soon.