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{-# LANGUAGE LambdaCase #-}
foo = f >>= \case
Just h -> loadTestDB (h ++ "/.testdb")
Nothing -> fmap S.Right initTestDB
{-| Is the alarm set - i.e. will it go off at some point in the future even if
`setAlarm` is not called? -}
isAlarmSetSTM :: AlarmClock -> STM Bool
isAlarmSetSTM AlarmClock{..} = readTVar acNewSetting
>>= \case { AlarmNotSet -> readTVar acIsSet; _ -> return True }
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