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Diffstat (limited to 'Lazymail.hs')
-rw-r--r-- | Lazymail.hs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Lazymail.hs b/Lazymail.hs index 9347b2e..70a6b96 100644 --- a/Lazymail.hs +++ b/Lazymail.hs @@ -6,3 +6,21 @@ - -} +module Lazymail where + +import Control.Monad.Reader +import Control.Monad.State + +import Config(LazymailConfig, customConfig) +import State(LazymailState, initialState) + +{- Lazymail monad is a ReaderT around a StateT with IO at the bottom of the + - stack. + -} +type Lazymail = ReaderT LazymailConfig (StateT LazymailState IO) + +run :: Lazymail a -> IO (a, LazymailState) +run k = + let config = customConfig + state = initialState + in runStateT (runReaderT k config) state
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