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Diffstat (limited to 'Haskell-book/26/MaybeT/src/MonadIO.hs')
| -rw-r--r-- | Haskell-book/26/MaybeT/src/MonadIO.hs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Haskell-book/26/MaybeT/src/MonadIO.hs b/Haskell-book/26/MaybeT/src/MonadIO.hs new file mode 100644 index 0000000..93244dd --- /dev/null +++ b/Haskell-book/26/MaybeT/src/MonadIO.hs @@ -0,0 +1,5 @@ +module MonadIO where + +class (Monad m) => MonadIO m where + -- | Lift a computation from the 'IO' monad. + liftIO :: IO a -> m a |