[Haskell-cafe] ANNOUNCE: new bridge! (prelude-prime)

[Manuel Gómez]

On Thu, May 23, 2013 at 3:07 AM, Roman Cheplyaka <roma at ro-che.info> wrote:
> Pull requests are welcome, but let's stick to widely agreed changes
> (like the Foldable/Traversable one). I think one of the reasons why
> other Preludes haven't been adopted is because they were too radical.
>
> * Andreas Abel <andreas.abel at ifi.lmu.de> [2013-05-20 13:26:05+0200]
>> Maybe instead of fiddling with the current Prelude (which might break
>> backwards compatibility), we should design a new prelude which is not
>> automatically loaded but contains roughly the current prelude (with
>> the list functions generalized to collections) plus the "modern" type
>> class stack: Functor, Applicative, Monad, Foldable, Traversable,
>> Monoid etc.

Is this strategy adequate for attacking the issue of the type class
stack, though?  Defining, say, a new Monad class with the desired
Functor constraint wouldn’t be of much use, as everything else on
Hackage (and on the GHC libraries!) would still use the “real” Monad.

I still see value in this package — a conservative extension to the
Prelude would certainly come in handy.  Thanks!