On Sunday 28 November 2004 13:53, Keean Schupke wrote: > ... here is an example object > in actuall Haskell code using the HList library... > > >point = do > > x <- newIORef 0 > > returnIO $ mutableX .=. x > > .*. getX .=. readIORef x > > .*. moveD .=. (\d -> modifyIORef x ((+) d)) > > .*. emptyRecord > > And here's the object in use: > >myFirstOOP = do > > p <- point > > p # getX >>= print > > p # moveD $ 3 > > p # getX >>= print > > As you can see no lifting or awkwardness involved... the syntax looks > very much like the OCaml example it was ported from.
Very nice. This would be enough for single threaded programs and as long as the local state is simple. I think it would get quite awkward as soon as you want to provide - more mutable members - synchronized access + asynchronous methods (i.e. _reactive_ objects) I am ready to be proved wrong, though. Ben _______________________________________________ Haskell-Cafe mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell-cafe
