As per this question, a function can be passed as a parameter to another function as shown below
fun foo(m: String, bar: (m: String) -> Unit) {
bar(m)
}
fun buz(m: String) {
println("another message: $m")
}
fun something() {
foo("hi", ::buz)
}
Similarly, we can also pass a method from a class
class OtherClass {
fun buz(m: String) {
println("another message: $m")
}
}
foo("hi", OtherClass()::buz)
But what if the method we want to pass is static (within a companion object)?
class OtherClass {
companion object {
fun buz(m: String) {
println("another message: $m")
}
}
}
I am aware that since it is static we can simply call the method directly without having to resort to passing it as a parameter, however, there are still some situations (such as when taking advantage of pre-existing code) where this would be useful.
