Am Montag, 4. Mai 2009 13:35 schrieb Bulat Ziganshin:
Hello Paolo,
Monday, May 4, 2009, 2:05:44 PM, you wrote:
Martin Odersky advocates the OO features of the scala language proposing an interesting problem where the OO approach seams valuable.
i know two problems in Haskell/GHC that require OO-loke features - extensible exceptions and GUI widget types hierarchy
Note that you don’t need different types for different kinds of GUI widgets if you use Functional Reactive Programming (FRP). You need different types if you use OO because you have to explicitely modify widgets after you have created them, and what modifications you are allowed to do, depends on the kind of widget. With FRP, you specify the behavior over all time when you create the widget, so no need for later method calls. Best wishes, Wolfgang