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{-# OPTIONS_GHC -Wincomplete-patterns -Wno-missing-methods -fforce-recomp #-}
{-# LANGUAGE GADTs, TypeFamilies, PatternSynonyms #-}
module Lib where
data family T a
data instance T () where
A :: T ()
B :: T ()
pattern C :: T ()
pattern C = B
{-# COMPLETE A, C #-}
g :: T () -> ()
g A = ()
g C = ()
h :: T () -> ()
h C = ()
h A = ()
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