A modern programming language that makes developers happier.

kotlinlang

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ah. cant wait for exhaustive when statements!

&gt;  cant wait for exhaustive when statements!
It works even with 1.5.31 with progressive mode

I have to admit, I feel like I'm missing some of the excitement about this one.  I mean it's only right that the compiler will enforce this, but the IDE has been inspecting it since as long as sealed classes have been a thing, which for me already brings 95% of the practical benefit.  I'm missing something... what is it? Safety at CI time?

safety at compile time yeah. the IDE only gives you a yellow little squiggle. I've been using the cashapp/exhaustivewhen repo to enforce this. so im looking forward to dropping it.