Data.Validation

Accumulating Either-like type.

Documentation

data Validation e a

Constructors

Success a

Failure e

Instances

Bitraversable Validation

Methods

bitraverse :: Applicative f => (a -> f c) -> (b -> f d) -> Validation a b -> f (Validation c d)

Bifoldable Validation

Methods

bifold :: Monoid m => Validation m m -> m

bifoldMap :: Monoid m => (a -> m) -> (b -> m) -> Validation a b -> m

bifoldr :: (a -> c -> c) -> (b -> c -> c) -> c -> Validation a b -> c

bifoldl :: (c -> a -> c) -> (c -> b -> c) -> c -> Validation a b -> c

Bifunctor Validation

Methods

bimap :: (a -> b) -> (c -> d) -> Validation a c -> Validation b d

first :: (a -> b) -> Validation a c -> Validation b c

second :: (b -> c) -> Validation a b -> Validation a c

Swapped Validation

Methods

swapped :: (Profunctor p, Functor f) => p (Validation b a) (f (Validation d c)) -> p (Validation a b) (f (Validation c d))

Functor (Validation e)

Methods

fmap :: (a -> b) -> Validation e a -> Validation e b

(<$) :: a -> Validation e b -> Validation e a

Semigroup e => Applicative (Validation e)

Methods

pure :: a -> Validation e a

(<*>) :: Validation e (a -> b) -> Validation e a -> Validation e b

liftA2 :: (a -> b -> c) -> Validation e a -> Validation e b -> Validation e c

(*>) :: Validation e a -> Validation e b -> Validation e b

(<*) :: Validation e a -> Validation e b -> Validation e a

Foldable (Validation e)

Methods

fold :: Monoid m => Validation e m -> m

foldMap :: Monoid m => (a -> m) -> Validation e a -> m

foldr :: (a -> b -> b) -> b -> Validation e a -> b

foldr' :: (a -> b -> b) -> b -> Validation e a -> b

foldl :: (b -> a -> b) -> b -> Validation e a -> b

foldl' :: (b -> a -> b) -> b -> Validation e a -> b

foldr1 :: (a -> a -> a) -> Validation e a -> a

foldl1 :: (a -> a -> a) -> Validation e a -> a

toList :: Validation e a -> [a]

null :: Validation e a -> Bool

length :: Validation e a -> Int

elem :: Eq a => a -> Validation e a -> Bool

maximum :: Ord a => Validation e a -> a

minimum :: Ord a => Validation e a -> a

sum :: Num a => Validation e a -> a

product :: Num a => Validation e a -> a

Traversable (Validation e)

Methods

traverse :: Applicative f => (a -> f b) -> Validation e a -> f (Validation e b)

sequenceA :: Applicative f => Validation e (f a) -> f (Validation e a)

mapM :: Monad m => (a -> m b) -> Validation e a -> m (Validation e b)

sequence :: Monad m => Validation e (m a) -> m (Validation e a)

(Monoid e, Semigroup e) => Alternative (Validation e)

Methods

empty :: Validation e a

(<|>) :: Validation e a -> Validation e a -> Validation e a

some :: Validation e a -> Validation e [a]

many :: Validation e a -> Validation e [a]

Alt (Validation e)

Methods

(<!>) :: Validation e a -> Validation e a -> Validation e a

some :: Applicative (Validation e) => Validation e a -> Validation e [a]

many :: Applicative (Validation e) => Validation e a -> Validation e [a]

Semigroup e => Apply (Validation e)

Methods

(<.>) :: Validation e (a -> b) -> Validation e a -> Validation e b

(.>) :: Validation e a -> Validation e b -> Validation e b

(<.) :: Validation e a -> Validation e b -> Validation e a

(Eq e, Eq a) => Eq (Validation e a)

Methods

(==) :: Validation e a -> Validation e a -> Bool

(/=) :: Validation e a -> Validation e a -> Bool

(Data a, Data e) => Data (Validation e a)

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Validation e a -> c (Validation e a)

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Validation e a)

toConstr :: Validation e a -> Constr

dataTypeOf :: Validation e a -> DataType

dataCast1 :: Typeable (* -> *) t => (forall d. Data d => c (t d)) -> Maybe (c (Validation e a))

dataCast2 :: Typeable (* -> * -> *) t => (forall d b. (Data d, Data b) => c (t d b)) -> Maybe (c (Validation e a))

gmapT :: (forall b. Data b => b -> b) -> Validation e a -> Validation e a

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Validation e a -> r

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Validation e a -> r

gmapQ :: (forall d. Data d => d -> u) -> Validation e a -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> Validation e a -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> Validation e a -> m (Validation e a)

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Validation e a -> m (Validation e a)

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Validation e a -> m (Validation e a)

(Ord e, Ord a) => Ord (Validation e a)

Methods

compare :: Validation e a -> Validation e a -> Ordering

(<) :: Validation e a -> Validation e a -> Bool

(<=) :: Validation e a -> Validation e a -> Bool

(>) :: Validation e a -> Validation e a -> Bool

(>=) :: Validation e a -> Validation e a -> Bool

max :: Validation e a -> Validation e a -> Validation e a

min :: Validation e a -> Validation e a -> Validation e a

(Show e, Show a) => Show (Validation e a)

Methods

showsPrec :: Int -> Validation e a -> ShowS

show :: Validation e a -> String

showList :: [Validation e a] -> ShowS

Generic (Validation e a)

Associated Types

type Rep (Validation e a) :: * -> *

Methods

from :: Validation e a -> Rep (Validation e a) x

to :: Rep (Validation e a) x -> Validation e a

Semigroup e => Semigroup (Validation e a)

Methods

(<>) :: Validation e a -> Validation e a -> Validation e a

sconcat :: NonEmpty (Validation e a) -> Validation e a

stimes :: Integral b => b -> Validation e a -> Validation e a

Monoid e => Monoid (Validation e a)

Methods

mempty :: Validation e a

mappend :: Validation e a -> Validation e a -> Validation e a

mconcat :: [Validation e a] -> Validation e a

type Rep (Validation e a)

type Rep (Validation e a) = D1 * (MetaData "Validation" "Data.Validation" "pipes-key-value-csv-0.4.0.3-BMolfMePNIX4070e6w9VQo" False) ((:+:) * (C1 * (MetaCons "Success" PrefixI False) (S1 * (MetaSel (Nothing Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 * a))) (C1 * (MetaCons "Failure" PrefixI False) (S1 * (MetaSel (Nothing Symbol) NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 * e))))