Is there a way to reference member extension funct...

# announcements

[marcinmoskala]

Is there a way to reference member extension function?

class A
class B {
    fun A.update(i: Int) {}
}

[gildor]

Yes,

val b = B()
with(b) {
  A().update(42)
}

[pablisco]

Very useful to scope extension functions so they don’t run wild on the global scope 🙂
Specially if B is an interface

[marcinmoskala]

@gildor This is use. Can we reference it?

[marcinmoskala]

For instance, for normal or inner we can reference either using normal or bounded:

class B {
    fun fizz() {}
    inner class C {
        fun buzz() {}
    }
}

fun main() {
    val ref1 = B::fizz
    val ref2 = B()::fizz
    val ref3 = B.C::buzz
    val ref4 = B().C()::buzz
}

[gildor]

Method reference doesn’s supported for member extension functions

[marcinmoskala]

Great, that what I wanted to know 🙂