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Date: | 2002-05-31 (14:07) |
From: | Warp <warplayer@f...> |
Subject: | Re: [Caml-list] about Obj.magic |
> > One case can be 'almost-legal' : downcasting an object to its implementation > > class if you're sure that it has been previously upcasted to the interface > > type class. > > > And here is how to break your code: > > class c = object method a : unit end > let i = new_intf (new c) > True. In fact that sample can't be used if the class also use shadow types which prevents the user from writing his own class and then making the program crash. Nicolas Cannasse ------------------- To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/ Beginner's list: http://groups.yahoo.com/group/ocaml_beginners