`restricted` member variables

[Dom Disc]

On Thursday, 23 June 2022 at 11:04:40 UTC, forkit wrote:

> Well, my task, was to highlight this issue in D, and stop it 
> from always being stuffed under the rug by the 'opposers'.

It was never "under the rug", as it popped up now and then by 
newbies.

If anything, you managed to change my opinion from "I don't need 
it, but who cares" to "It would be a failure to add it".
I would oppose any such DIP and hope Daniels branch won't make it 
in the mainstream.

"restricted" (or hidden/sees which I still think would be better 
names) would be a different thing, as this provides something new 
(preventing member functions from accessing specific fields). And 
fixes to the invariant handling are of course a good thing.