module Criterion.Monad
(
Criterion
, getConfig
, getConfigItem
, withConfig
) where
import Control.Monad.Reader (MonadReader, ReaderT, ask, runReaderT)
import Control.Monad.Trans (MonadIO)
import Criterion.Config (Config)
newtype Criterion a = Criterion {
runCriterion :: ReaderT Config IO a
} deriving (Functor, Monad, MonadReader Config, MonadIO)
getConfig :: Criterion Config
getConfig = ask
getConfigItem :: (Config -> a) -> Criterion a
getConfigItem f = f `fmap` getConfig
withConfig :: Config -> Criterion a -> IO a
withConfig = flip (runReaderT . runCriterion)