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24 lines
610 B
Idris
24 lines
610 B
Idris
showIfEq : (Eq a, Show a) => a -> a -> String
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showIfEq x y = if x == y then show x else "Nope"
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topeq : Eq a => a -> a -> Bool
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topeq x y = x == y
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data Foo = MkFoo | MkBar
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-- Should only show the first interface search failure in the tuple
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-- (Ideally it would keep going and find all the failures, but that is
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-- hard to achieve and this way is better than displaying the whole
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-- top level search when only part of it is relevant)
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test : Int -> String
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test x = showIfEq MkFoo MkBar
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Eq Foo where
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MkFoo == MkFoo = True
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MkBar == MkBar = True
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_ == _ = False
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test2 : String
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test2 = showIfEq MkFoo MkBar
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