Can I delegate to a nested property? ```class Delegate(val x: Int) class A { val delegate: Delega...

# getting-started

[David Kubecka]

Can I delegate to a nested property?

class Delegate(val x: Int)

class A {
  val delegate: Delegate
  val x by this::delegate.x // how to do this?
}

[Adam S]

try this:

class Delegate(val x: Int)

class A(
  val delegate: Delegate
) {
  val x by this.delegate::x
}

[Joffrey]

Why not simply:

class Delegate(val x: Int)

class A {
  val delegate: Delegate
  val x: Int get() = delegate.x
}

I find this clearer to read (but that's personal)

[David Kubecka]

yeah, for val s I would prefer that as well probably

[Joffrey]

Also, if you want x to be considered the same way in Delegate and in A you might want to define an interface for it (especially if you have more than one property). And then you can automatically delegate via interface delegation

[David Kubecka]

In my current case I need to delegate just a single property so I don't think interface delegation would help me.