< sabag ronen> `reified` in Kotlin only reifies classes but kotlinlang #announcements

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Title

elizarov

02/20/2018, 11:47 AM

@sabag.ronen

reified

in Kotlin only reifies classes, but it does not reify types. Now

String

and

String?

are different types, but they have the same class.

👍 1

🤔 1

snrostov

02/20/2018, 8:32 PM

@sabag.ronen

inline fun <reified T> isNullable() = null is T

should work

👏 1

but it does not reify types

@elizarov this is working for me (Kotlin 1.2):

inline fun <reified T> isNullable() = null is T

fun main(args: Array<String>) {
  println(isNullable<String>())
  println(isNullable<String?>())
}

false
true

sabag.ronen

02/20/2018, 8:37 PM

@snrostov you are right, it is working!!!!!!😀 Thanks a lot

snrostov

02/20/2018, 8:52 PM

It turns out this hack is already mentioned here https://youtrack.jetbrains.com/issue/KT-15992#comment=27-2652752 😀

sabag.ronen

02/20/2018, 8:56 PM

I have looked at this issue today and somehow missed it… Once again thanks

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