Steve Downey wrote: > In the last OO design in Haskell thread (and probably in every one > preceeding it), it was suggested that having some examples might be a good > idea. > > Since most people with existing designs will have some familiarity with > Design Patterns, and those are typical building blocks for OO designs, it > occured to me that implementing some of them might be a useful > excersize.
Have you looked at OOHaskell? http://homepages.cwi.nl/~ralf/OOHaskell/ http://darcs.haskell.org/OOHaskell/ With the exception of pure-functional objects and binary methods, I think we have considered almost every OO pattern/idiom we could find, including nominal/structural subtyping, co- and contra-variance, self-typing, etc. The DARCS repository contains the complete code for all of the examples and patterns. To clarify, the point of OOHaskell is to use Haskell as a tool, laboratory bench, for exploring various (thorny) OO issues. _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe