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[project @ 1997-06-18 23:52:36 by simonpj]
[ghc-hetmet.git]
/
ghc
/
compiler
/
tests
/
rename
/
rn021.hs
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{- Check that the context of a type does not
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constrain any in-scope variables, and only constrains
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type variables free in the type.
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-}
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module Foo where
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instance Eq a => Eq Bool where
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(==) = error "help"
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f :: Eq a => Int -> Int
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f x = x
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class Foo a where
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op :: Eq a => a -> a