Write tracking

[Araq]

On Friday, 27 May 2022 at 08:19:31 UTC, Daniel N wrote:
> There's lots of discussions/comparisons with how rust solves 
> various issues.
>
> I'm thinking Nim is sometimes a better source of inspiration.
> https://nim-lang.org/araq/writetracking_2.html
> https://github.com/nim-lang/RFCs/issues/234
>
> Thoughts?

It's been a while since we implemented this and dealt with the 
fallout. I still like the design much better than D's or C++'s 
but there seems to be an even better design that is both simpler 
(to implement) and allows for more optimizations. I don't want to 
go into more details here though. I hope you'll be able to read 
about them in my upcoming book(s).