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13 lines
364 B
Idris
13 lines
364 B
Idris
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public export
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interface Do (m : Type) where
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Next : (a : Type) -> (b : Type) -> m -> Type
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bind : (x : m) -> Next a b x
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-- This won't actually achieve anything useful, but we're testing whether
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-- it successfully typechecks and in the type of 'foo' we have the right 'a'
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public export
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Monad m => Do (m a) where
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Next a b x = (a -> m b) -> m b
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bind x = ?foo
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