my RULES don't fire
daniel.is.fischer at googlemail.com
Wed Feb 9 18:14:37 CET 2011
On Wednesday 09 February 2011 16:23:15, Sebastian Fischer wrote:
> Why don't the rules fire,
Because the 'match' is at the wrong type. In main, idGen appears as
idGen_anJ :: ([()] -> [[()]]) -> [[()]] -> [[()]]
at some point (yay for ghc -v4), so it doesn't match g's polymorphic type.
> what can I change such that they do,
> and what to get rid of the warning for the second rule (which I think
> is the one I should use)?
I'll let that for somebody else.
More information about the Glasgow-haskell-users