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Support for -fwarn-unused-do-bind and -fwarn-wrong-do-bind, as per #3263
[ghc-hetmet.git]
/
compiler
/
utils
/
MonadUtils.hs
diff --git
a/compiler/utils/MonadUtils.hs
b/compiler/utils/MonadUtils.hs
index
733eda1
..
9b364ae
100644
(file)
--- a/
compiler/utils/MonadUtils.hs
+++ b/
compiler/utils/MonadUtils.hs
@@
-18,7
+18,7
@@
module MonadUtils
, concatMapM
, mapMaybeM
, anyM, allM
, concatMapM
, mapMaybeM
, anyM, allM
- , foldlM, foldrM
+ , foldlM, foldlM_, foldrM
, maybeMapM
) where
, maybeMapM
) where
@@
-146,6
+146,10
@@
allM f (b:bs) = (f b) >>= (\bv -> if bv then allM f bs else return False)
foldlM :: (Monad m) => (a -> b -> m a) -> a -> [b] -> m a
foldlM = foldM
foldlM :: (Monad m) => (a -> b -> m a) -> a -> [b] -> m a
foldlM = foldM
+-- | Monadic version of foldl that discards its result
+foldlM_ :: (Monad m) => (a -> b -> m a) -> a -> [b] -> m ()
+foldlM_ = foldM_
+
-- | Monadic version of foldr
foldrM :: (Monad m) => (b -> a -> m a) -> a -> [b] -> m a
foldrM _ z [] = return z
-- | Monadic version of foldr
foldrM :: (Monad m) => (b -> a -> m a) -> a -> [b] -> m a
foldrM _ z [] = return z