robert dockins wrote:
Yup, thats how it is done, I have some complex working TH that generates multi parameter classes with fundeps
Is that really how this is done? That doesn't seem like it can be right:
instance X (a b) -- single parameter class where 'a' has an arrow kind
is very different from:
instance X a b -- multiple parameter class
I would expect a type constructed with 'appT' to correspond to the first declaration, and not to the second.
instances etc... and I can say for definite it all works fine:
For the above examples
appT X (appT a b) -- X is applied once (to a applied to b)
appT (appT X a) b -- X is applied twice first to a then to b
Keean. _______________________________________________ Haskell mailing list Haskell@haskell.org http://www.haskell.org/mailman/listinfo/haskell
