Re: [UPDATED] Add missing Monad instances to tuples

On Sun, 7 Apr 2019, Fumiaki Kinoshita wrote:

I removed Foldable/Traversable instances from the patch with reluctance. I'd still like to add these instances:

Functor ((,,) a b) (Monoid a, Monoid b) => Applicative ((,,) a b) (Monoid a, Monoid b) => Monad ((,,) a b) Functor ((,,,) a b c) (Monoid a, Monoid b, Monoid c) => Applicative ((,,,) a b c) (Monoid a, Monoid b, Monoid c) => Monad ((,,,) a b c)

Still duplicates to the Writer monad. How about extending the patch by the long needed instance warnings? :-)