Time to start compiling with -dip25

[Petar]

On Tuesday, 1 January 2019 at 18:38:57 UTC, Johan Engelen wrote:
> [..]
>
> Let me add some data points to the discussion using Weka's 
> complex codebase [1].
>
> To make compilation succeed with DIP25, I had to add `return` 
> to a function or parameter 48 times. That's much less than I 
> was expecting. I didn't encounter any problems otherwise (dlang 
> 2.083.1 frontend).
>
> [..]

Hi Johan and happy new year :)

I don't know if you are aware, but I opened a pull request fixing 
compilation with -dip25 a couple of days ago:
https://github.com/weka-io/mecca/pull/13

WekaIO's mecca being open-source and recongized as one of the 
important projects for the community (its actual usefulness for 
the company notwithstanding), and so being part of the list of 
projects tested on BuildKite (aka the project tester), gives it a 
chance to receive more attention from developers from the wider D 
community.
I'm sure that internally Weka has a rigorous code review and 
testing processes in place, perhaps not comparable to what a free 
GitHub + CI service like Travis can provide, but I'd like to 
suggest that people from the community can help the team as 
sometimes we're aware of certain language changes months before 
official releases, and can help you in upgrading to newer 
compiler releases. (Not that we're in possession of some secret 
information, on the contrary, but not always people on their day 
job have enough time to keep track of happenings elsewhere.)
I know that upgrading to a new compiler release is a much more 
involved process, but I believe we can help nonetheless.