Re: [Haskell-cafe] Newclasses

Apologies, that wasn't finished. I meant to say, does it mean that by writing a BMonad instance a Monad instance would be automatically generated? If so, that seems like it would cause conflicts in many cases. Regardless, I think "newclass" needs to be better specified if you want other people to be able to support it. On Thu, Oct 3, 2013 at 7:53 PM, John Lato wrote:

I don't really understand what a "newclass" is supposed to be.

On Thu, Oct 3, 2013 at 2:15 PM, Wvv wrote:

...

newclass Bind a => Monad a => BMonad a where { (>>=) = (>>-) }

I think this means that `BMonad` is supposed to be a new class that has both Bind and Monad in scope, the same as

class (Bind a, Monad a) => BMonad a

except that the Monad instance's (>>=) is replaced by (>>-).

If that's what "newclass" means, it seems absolutely pointless.

Does it instead mean that one could write

instance Bind MyType where

instance BMonad MyType