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Define a type synonym for R-algebras.

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Rob Rix 2017-04-24 15:43:22 -04:00
parent fa520d6089
commit d429d77b15
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src/Language/Ruby/Syntax.hs
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@ -112,6 +112,9 @@ optional a = a <|> term <*> pure Syntax.Empty
-- | An F-algebra on some carrier functor 'f'. -- | An F-algebra on some carrier functor 'f'.
type FAlgebra f a = f a -> a type FAlgebra f a = f a -> a
-- | An R-algebra on the base functor of some type 't'.
type RAlgebra t a = Base t (t, a) -> a
-- | Produce a list of identifiable subterms of a given term. -- | Produce a list of identifiable subterms of a given term.
-- --