I want to write an extension function for list like this `fu kotlinlang #announcements

I want to write an extension function for list lik...

robstoll

03/20/2018, 11:20 AM

I want to write an extension function for list like this:

fun <T> List<T>.foo(t: T)

Is there a way to force that a consumer of this function cannot inadvertently kind of widen the type to Any (which is fine due to

List<out T>

). Or in other words, I would like to prevent the following:

listOf(1).foo("bla")