can somebody tell me why this is legal kotlin kotlinlang #announcements

can somebody tell me why this is legal kotlin?

groostav

12/17/2018, 1:52 AM

can somebody tell me why this is legal kotlin?

youtrack 1

🪲 1

karelpeeters

12/17/2018, 1:59 AM

What does it print?

groostav

12/17/2018, 1:59 AM

Copy code

java.lang.ClassCastException: class kotlin.Unit cannot be cast to class java.lang.Number

groostav

12/17/2018, 1:59 AM

--which is thrown, not printed

karelpeeters

12/17/2018, 2:00 AM

Then that's clearly a bug simple smile

Dico

12/17/2018, 5:23 AM

Shouldn't be legal because the

when

is used as an expression, i.e. it should require an else branch. Weird.

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