testsuite/tests/generics/GenShouldFail1_0.hs


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{-# LANGUAGE Haskell2010 #-}
{-# LANGUAGE StandaloneDeriving #-}

module ShouldFail1_0 where

import GHC.Generics (Generic1)

data X a = X

deriving instance Generic1 X

-- Should fail (no XDeriveGeneric)