testsuite/tests/deriving/should_fail/drvfail015.hs


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{-# LANGUAGE Haskell2010 #-}
{-# OPTIONS_GHC -XStandaloneDeriving #-}

module ShouldFail where

import System.IO( Handle )


-- T is a synonym
type T = Int
deriving instance Eq T

-- Handle is abstract
deriving instance Eq Handle