[Haskell-cafe] ANNOUNCE: enumerator 0.4.8
es at ertes.de
Wed Mar 30 04:03:19 CEST 2011
Antoine Latter <aslatter at gmail.com> wrote:
> It looks like we can't quite fit Enumeratee into the Category
> typeclass (without newtypes, at least). That's a shame.
Yeah. Intuitively it looks like iteratees and enumeratees are excellent
candidates for Category and even Arrow. Unfortunately they can either
be monad transformers or arrows. You can't mix without, as you said, a
newtype. That's very unfortunate.
nightmare = unsafePerformIO (getWrongWife >>= sex)
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