Hi John,
NB
the essence what I am trying to do is to define a proxy class Foo for
class Ba1 I would have thought that something as simple as the
following would have worked ??
class Ba1 a where
dosomething :: a -> IO ()
ba1 :: Ba1 a => a -> IO ()
ba1 x = dosomething x
instance Ba1 Int where
dosomething x = print x
instance Ba1 Char where
dosomething x = print x
what I wish to do is declare another function
If you implement the proxy function like below, it should work:
class Ba1 a => Foo a where
proxy :: a -> IO ()
proxy = ba1
I've made Foo a subclass of Ba1 with a member function proxy and a
default implementation. I hope this will help you further..
Grt
PS Use the haskell-cafe list next time for this kind of questions.
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