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Idris2/tests/idris2/error014/Issue735.idr

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320 B
Idris

module Issue735
-- Not allowed to pattern-match on under-applied constructors
isCons : (a -> List a -> List a) -> Bool
isCons (::) = True
isCons _ = False
interface A a where
-- Not allowed to pattern-match on under-applied type constructors
test : (kind : Type -> Type) -> Maybe Nat
test A = Just 1
test _ = Nothing