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deque-blog/ReservationExprMonadInstance.hs

Created June 25, 2017 17:45
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ReservationExprMonadInstance.hs
instance Functor ReservationExpr where
fmap fn expr = expr >>= Pure . fn
instance Applicative ReservationExpr where
pure = Pure
fExpr <*> aExpr = fExpr >>= \f -> fmap f aExpr
instance Monad ReservationExpr where
(>>=) = Bind
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