GHC/IO/IOMode.hs

    {-# LANGUAGE Trustworthy #-}
    {-# LANGUAGE NoImplicitPrelude #-}
    {-# OPTIONS_HADDOCK not-home #-}

    -----------------------------------------------------------------------------
    -- |
    -- Module      :  GHC.IO.IOMode
    -- Copyright   :  (c) The University of Glasgow, 1994-2008
    -- License     :  see libraries/base/LICENSE
    --
    -- Maintainer  :  libraries@haskell.org
    -- Stability   :  internal
    -- Portability :  non-portable
    --
    -- The IOMode type
    --
    -----------------------------------------------------------------------------

    module GHC.IO.IOMode (IOMode(..)) where

    import GHC.Base
    import GHC.Show
    import GHC.Read
    import GHC.Arr
    import GHC.Enum

    -- | See 'System.IO.openFile'
    data IOMode      =  ReadMode | WriteMode | AppendMode | ReadWriteMode
                        deriving ( Eq   -- ^ @since 4.2.0.0
                                 , Ord  -- ^ @since 4.2.0.0
                                 , Ix   -- ^ @since 4.2.0.0
                                 , Enum -- ^ @since 4.2.0.0
                                 , Read -- ^ @since 4.2.0.0
                                 , Show -- ^ @since 4.2.0.0
                                 )