Re: [Haskell-cafe] MTL vs Free-monads, what are your experiences

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"O" == Oleg writes:

O> and require the boilerplate of writing functor instances Just note, since DeriveFunctor there is almost never any such boilerplate in these cases. -- John Wiegley GPG fingerprint = 4710 CF98 AF9B 327B B80F http://newartisans.com 60E1 46C4 BD1A 7AC1 4BA2