<How to define generic argument that extends nulla...

# stackoverflow

[user]

How to define generic argument that extends nullable but not nullable itself
In Kotlin is there a way to define a non-nullable generic argument that is a subtype of nullable type?
I thought that I can do something like

class nullableToNonnullable where B: A, B: Any {
fun toNonNull(a: A): B
}


but I'm getting compile time error:

Type parameter cannot have any other bounds if it's bounded by another type parameter

Right now I can only work around it by using a wrapper type, something like Option

class nullableToNonnullable {
fun toNonNull(a: Option<A>): A
}