<@UFGCACPE0> there is no difference. A regular cle...

# kotlin-native

[loke]

@CLOVIS there is no difference. A regular cleaner points to the actual object, but your other references are weak.

[CLOVIS]

Then, how can I create a cleaner for a weak reference?

[loke]

You don't create a cleaner for a reference. You create a cleaner for an object. When that object has no more references, the cleaner is called.

[CLOVIS]

Do I need to keep a reference on the returned Cleaner?

[loke]

Of course.

[CLOVIS]

So I need a WeakKeyMap<T, Cleaner> to store all the cleaners until the object they reference has been cleaned?

[loke]

So something like:

class Foo {
  private val value = ...
  private val cleaner = createCleaner(value) { obj -> freeObject(obj) }
}

val weakRefToFoo = WeakReference(Foo())