On Tuesday, 13 August 2024 at 04:23:15 UTC, Manu wrote:
> So this preview has been available for more than 5 years.
> Andrei did a keynote on it, and that seemed generally well
> received (if not
> a little tepid, because not so many people care about this).
> All the code I've written in the last 5 years doesn't work
> without this.
> I have exercised this pretty extensively in whatever flavour of
> code it is
> that I tend to write, and never had any problem. It works like
> it's meant
> to.
> I would severely struggle to return to a D without it.
>
> Can we un-preview this now?
Can we please remove it? It's a silent breaking change as it
changes the semantics of every function that has `ref` parameters
with the implicit or explicit understanding that it can't take
rvalues. Add `@universal ref`. It's a pure addition and wouldn't
break code. Manu and others could just search and replace `ref`
by `@universal ref` and be happy. Changing `ref` to make it take
rvalues never was a good idea.
Remove it? What harm has it caused you?
You'll need to substantiate these claims? You're wrong on all accounts by my experience and reckoning.
I've been using it for 5 years and all my code would fail without it, several others at the top of this thread also said the same thing. I have never experienced an issue or anything related to it that caused something like "silent breakage".
I exercise the language pretty intensely, more so than most.
I think you need to present a rock solid case to invalidate half a decade of several people's work, and you'll have to do better then "I don't care for that in theory", or "the idea kind-of makes me nervous despite never having turned the flag on and having literally no experience with it one way or the other"...