[pjmlp]

Dynamic languages have it, via "doesNotUnderstand" and similar.

Kotlin also provides a way similar to those COM variants,

https://kotlinlang.org/docs/delegation.html#overriding-a-mem...

Best support is probably MOP in Common Lisp, I guess.

[iainmerrick]

The Kotlin version is pretty much what I had in mind, that's pretty nice.