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haskell / mtl

The Monad Transformer Library
http://www.haskell.org/haskellwiki/Monad_Transformers
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add (existing mtl typeclass) instances for AccumT #80

Closed chessai closed 4 years ago

chessai commented 4 years ago

Like it says on the tin.

Note that this PR intentionally DOES NOT address adding MonadAccum, since IMO that is a larger concern and should be handled separately.

chessai commented 4 years ago

Requesting review from @ekmett @RyanGlScott and anyone who is interested from the CLC, cc @haskell/core-libraries-committee

chessai commented 4 years ago

I would welcome more reviews, to be safe. Anyone?

chessai commented 4 years ago

Okay, now on to #81