libraries/base/GHC/IO/Exception.hs-boot (10 lines of code) (raw):
{-# LANGUAGE Trustworthy #-}
{-# LANGUAGE NoImplicitPrelude #-}
module GHC.IO.Exception where
import GHC.Base
import GHC.Exception
data IOException
instance Exception IOException
type IOError = IOException
userError :: String -> IOError
unsupportedOperation :: IOError