shithub: MicroHs

ref: cc577d232d1f8c942e52eab59f1e99dae3964d8f
dir: /tests/PatSynE.hs/

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module PatSynE(pattern Sing, pattern Sings, pattern Swap, pattern One, T(..,AA)) where

pattern Sing :: a -> [a]
pattern Sing a = [a]

pattern Sings :: a -> [a] -> [a]
pattern Sings a as <- as@[a]

pattern Swap :: a -> a -> [a]
pattern Swap a b = [b, a]

pattern One :: (Eq a, Num a) => a
pattern One = 1

data T = A deriving (Show)
pattern AA :: T
pattern AA = A