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{-# LANGUAGE PatternSynonyms, PolyKinds, TypeOperators #-}
-- | Testing some pattern synonyms
module PatternSyns where
-- | FooType doc
data FooType x = FooCtor x
-- | Pattern synonym for 'Foo' x
pattern Foo x = FooCtor x
-- | Pattern synonym for 'Bar' x
pattern Bar x = FooCtor (Foo x)
-- | Pattern synonym for (':<->')
pattern x :<-> y = (Foo x, Bar y)
-- | Doc for ('><')
data (a :: *) >< b = Empty
-- | Pattern for 'Empty'
pattern E = Empty
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