Hi, I will jump into discussion with my question, ...

# getting-started

[Karolo]

Hi, I will jump into discussion with my question, so if iterrupting I am sorry 🙂
I have in object Foo var with custom setter:

var foo: ((Long) -> Unit)? = null
        set(value) {
            update()
        }

And the problem is when setting it from another part of code like that:

Foo.foo = {it-> doSomeJobWithIt(it) }

it still after such verified call stays null. I am sure that setter is called but somehow my foo inside Foo is still null.
Is there something I am missing with variables in object's ? Thanks in advance!

[karelpeeters]

Surround code with ```.

[karelpeeters]

To actually answer you question, your setter needs to actually set the field as well, the backing field is available under the name field. Add this as the first line of your setter: field = value.

[karelpeeters]

See https://kotlinlang.org/docs/reference/properties.html#backing-fields.

[Karolo]

@karelpeeters ehh I was missing that field name, was trying with var name but then ofcourse I got stackoverflow from recursive calls.