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| author | Herbert Valerio Riedel <hvr@gnu.org> | 2018-11-10 01:12:52 +0100 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2019-03-22 10:34:51 -0400 |
| commit | ab51bee40c82cd552bcf13e24b67d43f3b8d25f3 (patch) | |
| tree | a75a4102576dad50af44e342fb9152e7270792eb /libraries/base/Control/Monad.hs | |
| parent | cd07086ada34888c08585f4dc98a961618748ed0 (diff) | |
| download | haskell-ab51bee40c82cd552bcf13e24b67d43f3b8d25f3.tar.gz | |
base: Remove `Monad(fail)` method and reexport `MonadFail(fail)` instead
As per https://prime.haskell.org/wiki/Libraries/Proposals/MonadFail
Coauthored-by: Ben Gamari <ben@well-typed.com>
Diffstat (limited to 'libraries/base/Control/Monad.hs')
| -rw-r--r-- | libraries/base/Control/Monad.hs | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libraries/base/Control/Monad.hs b/libraries/base/Control/Monad.hs index 8223ec73d1..433d176eb1 100644 --- a/libraries/base/Control/Monad.hs +++ b/libraries/base/Control/Monad.hs @@ -19,7 +19,8 @@ module Control.Monad -- * Functor and monad classes Functor(fmap) - , Monad((>>=), (>>), return, fail) + , Monad((>>=), (>>), return) + , MonadFail(fail) , MonadPlus(mzero, mplus) -- * Functions @@ -75,6 +76,7 @@ module Control.Monad , (<$!>) ) where +import Control.Monad.Fail ( MonadFail(fail) ) import Data.Foldable ( Foldable, sequence_, sequenceA_, msum, mapM_, foldlM, forM_ ) import Data.Functor ( void, (<$>) ) import Data.Traversable ( forM, mapM, traverse, sequence, sequenceA ) |