<@U3SK5B492> Is any sort of weak reference, or wea...

# kotlin-native

[spierce7]

@olonho Is any sort of weak reference, or weakmap planned for kotlin-native?

[olonho]

already in place: https://github.com/JetBrains/kotlin-native/blob/master/runtime/src/main/kotlin/konan/ref/Weak.kt

[spierce7]

Hooray! Thanks 🙂

[J-Rojas]

Awesome! Was hoping that was the case. Nice work!

[damian]

Out of curiosity, why is the upper bound on T nullable? Does it make any sense to have a weak reference to a nullable type? It stood out to me because of the null check in the constructor... can it not be enforced by the type system?

[J-Rojas]

I think it has something to do with offering support to both C Pointer reference types and Kotlin objects. See the WeakPrivate.kt file in the same directory.

[olonho]

That’s probably just an oversight on my side, T better be bound by Any indeed

[olonho]

Btw, current weak refs are only work to Kotlin objects, not to Objective-C ones. However, we plan to improve on that soon.