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{-# LANGUAGE Safe #-}------------------------------------------------------------------------------- |-- Module      :  Control.Monad.IO.Class-- Copyright   :  (c) Andy Gill 2001,--                (c) Oregon Graduate Institute of Science and Technology, 2001-- License     :  BSD-style (see the file LICENSE)---- Maintainer  :  R.Paterson@city.ac.uk-- Stability   :  experimental-- Portability :  portable---- Class of monads based on @IO@.-----------------------------------------------------------------------------moduleControl.Monad.IO.Class(MonadIO(..))where-- | Monads in which 'IO' computations may be embedded.-- Any monad built by applying a sequence of monad transformers to the-- 'IO' monad will be an instance of this class.---- Instances should satisfy the following laws, which state that 'liftIO'-- is a transformer of monads:---- * @'liftIO' . 'return' = 'return'@---- * @'liftIO' (m >>= f) = 'liftIO' m >>= ('liftIO' . f)@class(Monadm)=>MonadIOmwhere-- | Lift a computation from the 'IO' monad.liftIO::IOa->ma-- | @since 4.9.0.0instanceMonadIOIOwhereliftIO=id