On Sat, Sep 4, 2010 at 12:34 PM, David Menendez <[email protected]> wrote:
> > On Fri, Sep 3, 2010 at 8:23 AM, John Lato <[email protected]> wrote: > > > +1 for using the proper constraints, and especially for bringing over > > Pointed (and anything else that applies). > > What's the argument for Pointed? Are there many types which are > instances of Pointed but not Applicative? Are there many algorithms > which require Pointed but not Applicative? > Having Pointed is categorically the right thing to do, which is why I argue for its inclusion. Also, I think it would be prudent to avoid a situation with the possibility of turning into a rehash of the Functor/Applicative/Monad mess. Are there any good reasons for not including it? Just because we don't have a use now doesn't mean it might not be useful in the future. John
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