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davidhq/test.purs

Created October 17, 2015 18:53
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test.purs
module My.Data.List where
data List a = Cons a (List a) | Nil
instance showList :: (Show a) => Show (List a) where
show (Cons x xs) = (show x) ++ " : " ++ show xs
show Nil = "Nil"
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davidhq commented Oct 17, 2015 

Error:
Error in module My.Data.List:
Error at /Users/david/Projects/playground/purescript/list.purs line 5, column 1 - line 7, column 14:
  Unknown type class Show

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