It's exactly as elegant for nulls. Kotlin's T? == Scala 3's T | Null. In both Scala 3 and Kotlin, you can't call a method it.
Kotlin does have the !! operator for practical purposes like Java interop. Equivalent to this Scala 3 code:
extension (t: T)
def !!: T = if(t != null) t else throw NullPointerException()
I haven't checked after release, how is Scala 3 smart-casting now? E.g. Kotlin and Typescript convert a T? to a T inside an if(t != null) branch, and Scala's left much to be desired when I checked.
Scala's and Typescript's union & intersection + smartcasting approach is much more general than Kotlin's T? of course, but Kotlin could introduce that backwards-compatible if they wanted.
> "I haven't checked after release, how is Scala 3 smart-casting now? E.g. Kotlin and Typescript convert a T? to a T inside an if(t != null) branch, and Scala's left much to be desired when I checked."
Kotlin does have the !! operator for practical purposes like Java interop. Equivalent to this Scala 3 code:
I haven't checked after release, how is Scala 3 smart-casting now? E.g. Kotlin and Typescript convert a T? to a T inside an if(t != null) branch, and Scala's left much to be desired when I checked.Scala's and Typescript's union & intersection + smartcasting approach is much more general than Kotlin's T? of course, but Kotlin could introduce that backwards-compatible if they wanted.