4 May
2009
4 May
'09
11:01 a.m.
Hi Bulat Ziganshin wrote:
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
Yes, type hierarchies require OO. But, do we really need to represent different widget-types in a hierarchy? An alternative to a big hierarchy would be to let different widget-types implement different type classes. We could have type classes like MouseEvents, KeyboardEvents, Activated, ... /Mads Lindstrøm