Re: Proposal: Add Monad instance for WrappedMonad

2 Aug 2013


      ...
...
...
...
...
Daniel Gorín  writes:
...
Control.Applicative.WrappedMonad allows one to use the Functor and
Applicative interfaces of something that is only known to be a Monad but,
oddly enough, it hides its Monad interface.  The proposal is to add the
missing Monad instance.  A typical use case for this instance would be:
...
A related proposal for the transformers package would be to add a MonadTrans
instance for WrappedMonad as well.
+1

-- 
John Wiegley
FP Complete                         Haskell tools, training and consulting
http://fpcomplete.com               johnw on #haskell/irc.freenode.net