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module WhereIn3a where
--A definition can be demoted to the local 'where' binding of a friend declaration,
--if it is only used by this friend declaration.
--Demoting a definition narrows down the scope of the definition.
--In this example, demote the top level 'sq' to 'sumSquares'
--In this case (there are multi matches), the parameters are not folded after demoting.
-- A leading comment
anotherFun 0 y = sq y
where sq x = x^2
sq pow 0 = 0 -- prior comment
sq pow z = z^pow --there is a comment
sumSquares x y = sq p x + sq p y
where p=2 {-There is a comment-}
sq :: Int -> Int -> Int
sq pow 0 = 0 -- prior comment
sq pow z = z^pow --there is a comment
-- A leading comment
anotherFun 0 y = sq y
where sq x = x^2
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