Is there *any* valid excuse for Dart's decision to be unsound around variance?
@BrendanEich But variance isn't hard. I don't understand why you'd cut that corner.
-
-
@pcwalton variance for collections isn't hard, but variance in full? annotation burden... -
@BrendanEich Not really, just use + and - like Scala. This is a solved problem IMO… - 5 more replies
New conversation -
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.