postgrest/docs/Applicative.md

Applicative

Functor

class Functor (f :: * -> *) where
  fmap :: (a -> b) -> f a -> f b
  (<$) :: a -> f b -> f a

(<$>) :: Functor f => (a -> b) -> f a -> f b

($>) :: Functor f => f a -> b -> f b

Applicatives

class Functor f => Applicative (f :: * -> *) where
  pure :: a -> f a
  (<*>) :: f (a -> b) -> f a -> f b
  (*>) :: f a -> f b -> f b
  (<*) :: f a -> f b -> f a

orAlt :: (Alternative f, Monoid a) => f a -> f a

orEmpty :: Alternative f => Bool -> a -> f a

eitherA :: (Alternative f) => f a -> f b -> f (Either a b)

pass :: Applicative f => f ()

Alternative

class Applicative f => Alternative (f :: * -> *) where
  empty :: f a
  (<|>) :: f a -> f a -> f a
  some :: f a -> f [a]
  many :: f a -> f [a]

(<|>) :: Alternative f => f a -> f a -> f a

many :: Alternative f => f a -> f [a]

some :: Alternative f => f a -> f [a]

optional :: Alternative f => f a -> f (Maybe a)

liftA :: Applicative f => (a -> b) -> f a -> f b

empty :: Alternative f => f a

guarded :: (Alternative f) => (a -> Bool) -> a -> f a

guardedA :: (Functor f, Alternative t) => (a -> f Bool) -> a -> f (t a)