
1 Feb
2009
1 Feb
'09
10:06 p.m.
Is there any sensible way to make newtype FooT m e = FooT (StateT Bar m e) deriving (MonadState) work to give instance MonadState Bar (FooT m e)? That is, I'm asking if there would be a semantically sensible way of modifying GeneralizedNewtypeDeriving to handle multi-parameter type classes when there is a functional dependency involved, assuming by default that the newtype is the more general of the types, perhaps? Louis Wasserman wasserman.louis@gmail.com