| Copyright | (c) 2016 Stephen Diehl (c) 2016-2018 Serokell (c) 2018-2023 Kowainik |
|---|---|
| License | MIT |
| Maintainer | Kowainik <xrom.xkov@gmail.com> |
| Stability | Stable |
| Portability | Portable |
| Safe Haskell | Safe |
| Language | Haskell2010 |
Relude.Applicative
Contents
Description
This module contains reexports of Applicative and related functional.
Additionally, it provides convenient combinators to work with Applicative.
Synopsis
- class Applicative f => Alternative (f :: Type -> Type) where
- class Functor f => Applicative (f :: Type -> Type) where
- newtype Const a (b :: k) = Const {
- getConst :: a
- newtype ZipList a = ZipList {
- getZipList :: [a]
- liftA3 :: Applicative f => (a -> b -> c -> d) -> f a -> f b -> f c -> f d
- optional :: Alternative f => f a -> f (Maybe a)
- (<**>) :: Applicative f => f a -> f (a -> b) -> f b
- pass :: Applicative f => f ()
- appliedTo :: Applicative f => f a -> f (a -> b) -> f b
Reexports
Main data types and functions reexported from Control.Applicative.
class Applicative f => Alternative (f :: Type -> Type) where #
Instances
class Functor f => Applicative (f :: Type -> Type) where #
Instances
| Applicative Complex | |
| Applicative First | |
| Applicative Last | |
| Applicative Max | |
| Applicative Min | |
| Applicative Put | |
| Applicative Seq | |
| Applicative Tree | |
| Applicative NonEmpty | |
| Applicative STM | |
| Applicative Identity | |
| Applicative First | |
| Applicative Last | |
| Applicative Down | |
| Applicative Dual | |
| Applicative Product | |
| Applicative Sum | |
| Applicative ZipList | |
| Applicative Par1 | |
| Applicative P | |
| Applicative ReadP | |
| Applicative ReadPrec | |
Defined in GHC.Internal.Text.ParserCombinators.ReadPrec | |
| Applicative IO | |
| Applicative Q | |
| Applicative Maybe | |
| Applicative Solo | |
| Applicative [] | |
| Monad m => Applicative (WrappedMonad m) | |
Defined in Control.Applicative Methods pure :: a -> WrappedMonad m a # (<*>) :: WrappedMonad m (a -> b) -> WrappedMonad m a -> WrappedMonad m b # liftA2 :: (a -> b -> c) -> WrappedMonad m a -> WrappedMonad m b -> WrappedMonad m c # (*>) :: WrappedMonad m a -> WrappedMonad m b -> WrappedMonad m b # (<*) :: WrappedMonad m a -> WrappedMonad m b -> WrappedMonad m a # | |
| Applicative (SetM s) | |
| Arrow a => Applicative (ArrowMonad a) | |
Defined in GHC.Internal.Control.Arrow Methods pure :: a0 -> ArrowMonad a a0 # (<*>) :: ArrowMonad a (a0 -> b) -> ArrowMonad a a0 -> ArrowMonad a b # liftA2 :: (a0 -> b -> c) -> ArrowMonad a a0 -> ArrowMonad a b -> ArrowMonad a c # (*>) :: ArrowMonad a a0 -> ArrowMonad a b -> ArrowMonad a b # (<*) :: ArrowMonad a a0 -> ArrowMonad a b -> ArrowMonad a a0 # | |
| Applicative (Either e) | |
| Applicative (Proxy :: Type -> Type) | |
| Applicative (U1 :: Type -> Type) | |
| Applicative (IParser t) | |
| Applicative f => Applicative (Lift f) | |
| (Functor m, Monad m) => Applicative (MaybeT m) | |
| Monoid a => Applicative ((,) a) | |
| Arrow a => Applicative (WrappedArrow a b) | |
Defined in Control.Applicative Methods pure :: a0 -> WrappedArrow a b a0 # (<*>) :: WrappedArrow a b (a0 -> b0) -> WrappedArrow a b a0 -> WrappedArrow a b b0 # liftA2 :: (a0 -> b0 -> c) -> WrappedArrow a b a0 -> WrappedArrow a b b0 -> WrappedArrow a b c # (*>) :: WrappedArrow a b a0 -> WrappedArrow a b b0 -> WrappedArrow a b b0 # (<*) :: WrappedArrow a b a0 -> WrappedArrow a b b0 -> WrappedArrow a b a0 # | |
| (Applicative f, Monad f) => Applicative (WhenMissing f x) | |
Defined in Data.IntMap.Internal Methods pure :: a -> WhenMissing f x a # (<*>) :: WhenMissing f x (a -> b) -> WhenMissing f x a -> WhenMissing f x b # liftA2 :: (a -> b -> c) -> WhenMissing f x a -> WhenMissing f x b -> WhenMissing f x c # (*>) :: WhenMissing f x a -> WhenMissing f x b -> WhenMissing f x b # (<*) :: WhenMissing f x a -> WhenMissing f x b -> WhenMissing f x a # | |
| Applicative m => Applicative (Kleisli m a) | |
Defined in GHC.Internal.Control.Arrow | |
| Monoid m => Applicative (Const m :: Type -> Type) | |
| Applicative f => Applicative (Ap f) | |
| Applicative f => Applicative (Alt f) | |
| (Generic1 f, Applicative (Rep1 f)) => Applicative (Generically1 f) | |
Defined in GHC.Internal.Generics Methods pure :: a -> Generically1 f a # (<*>) :: Generically1 f (a -> b) -> Generically1 f a -> Generically1 f b # liftA2 :: (a -> b -> c) -> Generically1 f a -> Generically1 f b -> Generically1 f c # (*>) :: Generically1 f a -> Generically1 f b -> Generically1 f b # (<*) :: Generically1 f a -> Generically1 f b -> Generically1 f a # | |
| Applicative f => Applicative (Rec1 f) | |
| Applicative (t m) => Applicative (LiftingAccum t m) | |
Defined in Control.Monad.Accum Methods pure :: a -> LiftingAccum t m a # (<*>) :: LiftingAccum t m (a -> b) -> LiftingAccum t m a -> LiftingAccum t m b # liftA2 :: (a -> b -> c) -> LiftingAccum t m a -> LiftingAccum t m b -> LiftingAccum t m c # (*>) :: LiftingAccum t m a -> LiftingAccum t m b -> LiftingAccum t m b # (<*) :: LiftingAccum t m a -> LiftingAccum t m b -> LiftingAccum t m a # | |
| Applicative (t m) => Applicative (LiftingSelect t m) | |
Defined in Control.Monad.Select Methods pure :: a -> LiftingSelect t m a # (<*>) :: LiftingSelect t m (a -> b) -> LiftingSelect t m a -> LiftingSelect t m b # liftA2 :: (a -> b -> c) -> LiftingSelect t m a -> LiftingSelect t m b -> LiftingSelect t m c # (*>) :: LiftingSelect t m a -> LiftingSelect t m b -> LiftingSelect t m b # (<*) :: LiftingSelect t m a -> LiftingSelect t m b -> LiftingSelect t m a # | |
| Applicative f => Applicative (Backwards f) | |
Defined in Control.Applicative.Backwards | |
| (Monoid w, Functor m, Monad m) => Applicative (AccumT w m) | |
Defined in Control.Monad.Trans.Accum | |
| (Functor m, Monad m) => Applicative (ExceptT e m) | |
Defined in Control.Monad.Trans.Except | |
| Applicative m => Applicative (IdentityT m) | |
Defined in Control.Monad.Trans.Identity | |
| Applicative m => Applicative (ReaderT r m) | |
Defined in Control.Monad.Trans.Reader | |
| (Functor m, Monad m) => Applicative (SelectT r m) | |
Defined in Control.Monad.Trans.Select | |
| (Functor m, Monad m) => Applicative (StateT s m) | |
Defined in Control.Monad.Trans.State.Lazy | |
| (Functor m, Monad m) => Applicative (StateT s m) | |
Defined in Control.Monad.Trans.State.Strict | |
| (Functor m, Monad m) => Applicative (WriterT w m) | |
Defined in Control.Monad.Trans.Writer.CPS | |
| (Monoid w, Applicative m) => Applicative (WriterT w m) | |
Defined in Control.Monad.Trans.Writer.Lazy | |
| (Monoid w, Applicative m) => Applicative (WriterT w m) | |
Defined in Control.Monad.Trans.Writer.Strict | |
| Monoid a => Applicative (Constant a :: Type -> Type) | |
Defined in Data.Functor.Constant | |
| Applicative f => Applicative (Reverse f) | |
| (Monoid a, Monoid b) => Applicative ((,,) a b) | |
| (Applicative f, Applicative g) => Applicative (Product f g) | |
Defined in Data.Functor.Product | |
| (Monad f, Applicative f) => Applicative (WhenMatched f x y) | |
Defined in Data.IntMap.Internal Methods pure :: a -> WhenMatched f x y a # (<*>) :: WhenMatched f x y (a -> b) -> WhenMatched f x y a -> WhenMatched f x y b # liftA2 :: (a -> b -> c) -> WhenMatched f x y a -> WhenMatched f x y b -> WhenMatched f x y c # (*>) :: WhenMatched f x y a -> WhenMatched f x y b -> WhenMatched f x y b # (<*) :: WhenMatched f x y a -> WhenMatched f x y b -> WhenMatched f x y a # | |
| (Applicative f, Monad f) => Applicative (WhenMissing f k x) | |
Defined in Data.Map.Internal Methods pure :: a -> WhenMissing f k x a # (<*>) :: WhenMissing f k x (a -> b) -> WhenMissing f k x a -> WhenMissing f k x b # liftA2 :: (a -> b -> c) -> WhenMissing f k x a -> WhenMissing f k x b -> WhenMissing f k x c # (*>) :: WhenMissing f k x a -> WhenMissing f k x b -> WhenMissing f k x b # (<*) :: WhenMissing f k x a -> WhenMissing f k x b -> WhenMissing f k x a # | |
| (Applicative f, Applicative g) => Applicative (f :*: g) | |
| Monoid c => Applicative (K1 i c :: Type -> Type) | |
| Applicative (ContT r m) | |
Defined in Control.Monad.Trans.Cont | |
| (Monoid a, Monoid b, Monoid c) => Applicative ((,,,) a b c) | |
Defined in GHC.Internal.Base | |
| Applicative ((->) r) | |
| (Applicative f, Applicative g) => Applicative (Compose f g) | |
Defined in Data.Functor.Compose | |
| (Monad f, Applicative f) => Applicative (WhenMatched f k x y) | |
Defined in Data.Map.Internal Methods pure :: a -> WhenMatched f k x y a # (<*>) :: WhenMatched f k x y (a -> b) -> WhenMatched f k x y a -> WhenMatched f k x y b # liftA2 :: (a -> b -> c) -> WhenMatched f k x y a -> WhenMatched f k x y b -> WhenMatched f k x y c # (*>) :: WhenMatched f k x y a -> WhenMatched f k x y b -> WhenMatched f k x y b # (<*) :: WhenMatched f k x y a -> WhenMatched f k x y b -> WhenMatched f k x y a # | |
| (Applicative f, Applicative g) => Applicative (f :.: g) | |
| Applicative f => Applicative (M1 i c f) | |
| (Functor m, Monad m) => Applicative (RWST r w s m) | |
Defined in Control.Monad.Trans.RWS.CPS | |
| (Monoid w, Functor m, Monad m) => Applicative (RWST r w s m) | |
Defined in Control.Monad.Trans.RWS.Lazy | |
| (Monoid w, Functor m, Monad m) => Applicative (RWST r w s m) | |
Defined in Control.Monad.Trans.RWS.Strict | |
Instances
| Generic1 (Const a :: k -> Type) | |||||
Defined in GHC.Internal.Data.Functor.Const | |||||
| Bifoldable (Const :: Type -> Type -> Type) | |||||
| Bifoldable1 (Const :: Type -> Type -> Type) | |||||
Defined in Data.Bifoldable1 | |||||
| Bifunctor (Const :: Type -> Type -> Type) | |||||
| Bitraversable (Const :: Type -> Type -> Type) | |||||
Defined in Data.Bitraversable Methods bitraverse :: Applicative f => (a -> f c) -> (b -> f d) -> Const a b -> f (Const c d) # | |||||
| Eq2 (Const :: Type -> Type -> Type) | |||||
| Ord2 (Const :: Type -> Type -> Type) | |||||
Defined in Data.Functor.Classes | |||||
| Read2 (Const :: Type -> Type -> Type) | |||||
Defined in Data.Functor.Classes Methods liftReadsPrec2 :: (Int -> ReadS a) -> ReadS [a] -> (Int -> ReadS b) -> ReadS [b] -> Int -> ReadS (Const a b) liftReadList2 :: (Int -> ReadS a) -> ReadS [a] -> (Int -> ReadS b) -> ReadS [b] -> ReadS [Const a b] liftReadPrec2 :: ReadPrec a -> ReadPrec [a] -> ReadPrec b -> ReadPrec [b] -> ReadPrec (Const a b) liftReadListPrec2 :: ReadPrec a -> ReadPrec [a] -> ReadPrec b -> ReadPrec [b] -> ReadPrec [Const a b] | |||||
| Show2 (Const :: Type -> Type -> Type) | |||||
Defined in Data.Functor.Classes Methods liftShowsPrec2 :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> (Int -> b -> ShowS) -> ([b] -> ShowS) -> Int -> Const a b -> ShowS liftShowList2 :: (Int -> a -> ShowS) -> ([a] -> ShowS) -> (Int -> b -> ShowS) -> ([b] -> ShowS) -> [Const a b] -> ShowS | |||||
| NFData2 (Const :: Type -> Type -> Type) | |||||
Defined in Control.DeepSeq | |||||
| Hashable2 (Const :: Type -> Type -> Type) | |||||
Defined in Data.Hashable.Class | |||||
| Eq a => Eq1 (Const a :: Type -> Type) | |||||
| Ord a => Ord1 (Const a :: Type -> Type) | |||||
Defined in Data.Functor.Classes Methods liftCompare :: (a0 -> b -> Ordering) -> Const a a0 -> Const a b -> Ordering | |||||
| Read a => Read1 (Const a :: Type -> Type) | |||||
Defined in Data.Functor.Classes Methods liftReadsPrec :: (Int -> ReadS a0) -> ReadS [a0] -> Int -> ReadS (Const a a0) liftReadList :: (Int -> ReadS a0) -> ReadS [a0] -> ReadS [Const a a0] liftReadPrec :: ReadPrec a0 -> ReadPrec [a0] -> ReadPrec (Const a a0) liftReadListPrec :: ReadPrec a0 -> ReadPrec [a0] -> ReadPrec [Const a a0] | |||||
| Show a => Show1 (Const a :: Type -> Type) | |||||
Defined in Data.Functor.Classes Methods liftShowsPrec :: (Int -> a0 -> ShowS) -> ([a0] -> ShowS) -> Int -> Const a a0 -> ShowS liftShowList :: (Int -> a0 -> ShowS) -> ([a0] -> ShowS) -> [Const a a0] -> ShowS | |||||
| Contravariant (Const a :: Type -> Type) | |||||
| NFData a => NFData1 (Const a :: Type -> Type) | |||||
Defined in Control.DeepSeq | |||||
| Monoid m => Applicative (Const m :: Type -> Type) | |||||
| Functor (Const m :: Type -> Type) | |||||
| Foldable (Const m :: Type -> Type) | |||||
Defined in GHC.Internal.Data.Functor.Const Methods fold :: Monoid m0 => Const m m0 -> m0 # foldMap :: Monoid m0 => (a -> m0) -> Const m a -> m0 # foldMap' :: Monoid m0 => (a -> m0) -> Const m a -> m0 # foldr :: (a -> b -> b) -> b -> Const m a -> b # foldr' :: (a -> b -> b) -> b -> Const m a -> b foldl :: (b -> a -> b) -> b -> Const m a -> b foldl' :: (b -> a -> b) -> b -> Const m a -> b # foldr1 :: (a -> a -> a) -> Const m a -> a foldl1 :: (a -> a -> a) -> Const m a -> a elem :: Eq a => a -> Const m a -> Bool maximum :: Ord a => Const m a -> a minimum :: Ord a => Const m a -> a | |||||
| Traversable (Const m :: Type -> Type) | |||||
Defined in GHC.Internal.Data.Traversable | |||||
| Hashable a => Hashable1 (Const a :: Type -> Type) | |||||
Defined in Data.Hashable.Class | |||||
| NFData a => NFData (Const a b) | |||||
Defined in Control.DeepSeq | |||||
| Monoid a => Monoid (Const a b) | |||||
| Semigroup a => Semigroup (Const a b) | |||||
| Bits a => Bits (Const a b) | |||||
Defined in GHC.Internal.Data.Functor.Const Methods (.&.) :: Const a b -> Const a b -> Const a b (.|.) :: Const a b -> Const a b -> Const a b xor :: Const a b -> Const a b -> Const a b # complement :: Const a b -> Const a b shift :: Const a b -> Int -> Const a b rotate :: Const a b -> Int -> Const a b setBit :: Const a b -> Int -> Const a b clearBit :: Const a b -> Int -> Const a b complementBit :: Const a b -> Int -> Const a b testBit :: Const a b -> Int -> Bool bitSizeMaybe :: Const a b -> Maybe Int shiftL :: Const a b -> Int -> Const a b unsafeShiftL :: Const a b -> Int -> Const a b shiftR :: Const a b -> Int -> Const a b unsafeShiftR :: Const a b -> Int -> Const a b rotateL :: Const a b -> Int -> Const a b | |||||
| FiniteBits a => FiniteBits (Const a b) | |||||
Defined in GHC.Internal.Data.Functor.Const Methods finiteBitSize :: Const a b -> Int countLeadingZeros :: Const a b -> Int countTrailingZeros :: Const a b -> Int | |||||
| (Typeable k, Data a, Typeable b) => Data (Const a b) | |||||
Defined in GHC.Internal.Data.Data Methods gfoldl :: (forall d b0. Data d => c (d -> b0) -> d -> c b0) -> (forall g. g -> c g) -> Const a b -> c (Const a b) gunfold :: (forall b0 r. Data b0 => c (b0 -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Const a b) toConstr :: Const a b -> Constr dataTypeOf :: Const a b -> DataType dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (Const a b)) dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Const a b)) gmapT :: (forall b0. Data b0 => b0 -> b0) -> Const a b -> Const a b gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Const a b -> r gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Const a b -> r gmapQ :: (forall d. Data d => d -> u) -> Const a b -> [u] gmapQi :: Int -> (forall d. Data d => d -> u) -> Const a b -> u gmapM :: Monad m => (forall d. Data d => d -> m d) -> Const a b -> m (Const a b) gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Const a b -> m (Const a b) gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Const a b -> m (Const a b) | |||||
| IsString a => IsString (Const a b) | |||||
Defined in GHC.Internal.Data.String Methods fromString :: String -> Const a b # | |||||
| Bounded a => Bounded (Const a b) | |||||
| Enum a => Enum (Const a b) | |||||
Defined in GHC.Internal.Data.Functor.Const Methods succ :: Const a b -> Const a b # pred :: Const a b -> Const a b # fromEnum :: Const a b -> Int # enumFrom :: Const a b -> [Const a b] # enumFromThen :: Const a b -> Const a b -> [Const a b] # enumFromTo :: Const a b -> Const a b -> [Const a b] # enumFromThenTo :: Const a b -> Const a b -> Const a b -> [Const a b] # | |||||
| Floating a => Floating (Const a b) | |||||
Defined in GHC.Internal.Data.Functor.Const Methods exp :: Const a b -> Const a b # sqrt :: Const a b -> Const a b # (**) :: Const a b -> Const a b -> Const a b # logBase :: Const a b -> Const a b -> Const a b # sin :: Const a b -> Const a b # cos :: Const a b -> Const a b # tan :: Const a b -> Const a b # asin :: Const a b -> Const a b # acos :: Const a b -> Const a b # atan :: Const a b -> Const a b # sinh :: Const a b -> Const a b # cosh :: Const a b -> Const a b # tanh :: Const a b -> Const a b # asinh :: Const a b -> Const a b # acosh :: Const a b -> Const a b # atanh :: Const a b -> Const a b # log1p :: Const a b -> Const a b expm1 :: Const a b -> Const a b | |||||
| RealFloat a => RealFloat (Const a b) | |||||
Defined in GHC.Internal.Data.Functor.Const Methods floatRadix :: Const a b -> Integer # floatDigits :: Const a b -> Int # floatRange :: Const a b -> (Int, Int) # decodeFloat :: Const a b -> (Integer, Int) # encodeFloat :: Integer -> Int -> Const a b # significand :: Const a b -> Const a b scaleFloat :: Int -> Const a b -> Const a b isInfinite :: Const a b -> Bool # isDenormalized :: Const a b -> Bool # isNegativeZero :: Const a b -> Bool # | |||||
| Storable a => Storable (Const a b) | |||||
Defined in GHC.Internal.Data.Functor.Const | |||||
| Generic (Const a b) | |||||
Defined in GHC.Internal.Data.Functor.Const Associated Types
| |||||
| Ix a => Ix (Const a b) | |||||
Defined in GHC.Internal.Data.Functor.Const Methods range :: (Const a b, Const a b) -> [Const a b] index :: (Const a b, Const a b) -> Const a b -> Int unsafeIndex :: (Const a b, Const a b) -> Const a b -> Int inRange :: (Const a b, Const a b) -> Const a b -> Bool rangeSize :: (Const a b, Const a b) -> Int unsafeRangeSize :: (Const a b, Const a b) -> Int | |||||
| Num a => Num (Const a b) | |||||
Defined in GHC.Internal.Data.Functor.Const | |||||
| Read a => Read (Const a b) | |||||
Defined in GHC.Internal.Data.Functor.Const | |||||
| Fractional a => Fractional (Const a b) | |||||
| Integral a => Integral (Const a b) | |||||
Defined in GHC.Internal.Data.Functor.Const Methods quot :: Const a b -> Const a b -> Const a b # rem :: Const a b -> Const a b -> Const a b # div :: Const a b -> Const a b -> Const a b # mod :: Const a b -> Const a b -> Const a b # quotRem :: Const a b -> Const a b -> (Const a b, Const a b) # divMod :: Const a b -> Const a b -> (Const a b, Const a b) # | |||||
| Real a => Real (Const a b) | |||||
Defined in GHC.Internal.Data.Functor.Const Methods toRational :: Const a b -> Rational # | |||||
| RealFrac a => RealFrac (Const a b) | |||||
| Show a => Show (Const a b) | |||||
| Eq a => Eq (Const a b) | |||||
| Ord a => Ord (Const a b) | |||||
| Hashable a => Hashable (Const a b) | |||||
Defined in Data.Hashable.Class | |||||
| type Rep1 (Const a :: k -> Type) | |||||
| type Rep (Const a b) | |||||
Defined in GHC.Internal.Data.Functor.Const | |||||
Constructors
| ZipList | |
Fields
| |
Instances
| NFData1 ZipList | |||||
Defined in Control.DeepSeq | |||||
| Alternative ZipList | |||||
| Applicative ZipList | |||||
| Functor ZipList | |||||
| Foldable ZipList | |||||
Defined in GHC.Internal.Functor.ZipList Methods fold :: Monoid m => ZipList m -> m # foldMap :: Monoid m => (a -> m) -> ZipList a -> m # foldMap' :: Monoid m => (a -> m) -> ZipList a -> m # foldr :: (a -> b -> b) -> b -> ZipList a -> b # foldr' :: (a -> b -> b) -> b -> ZipList a -> b foldl :: (b -> a -> b) -> b -> ZipList a -> b foldl' :: (b -> a -> b) -> b -> ZipList a -> b # foldr1 :: (a -> a -> a) -> ZipList a -> a foldl1 :: (a -> a -> a) -> ZipList a -> a elem :: Eq a => a -> ZipList a -> Bool maximum :: Ord a => ZipList a -> a minimum :: Ord a => ZipList a -> a | |||||
| Traversable ZipList | |||||
| Generic1 ZipList | |||||
Defined in GHC.Internal.Functor.ZipList Associated Types
| |||||
| NFData a => NFData (ZipList a) | |||||
Defined in Control.DeepSeq | |||||
| Data a => Data (ZipList a) | |||||
Defined in GHC.Internal.Functor.ZipList Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> ZipList a -> c (ZipList a) gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (ZipList a) toConstr :: ZipList a -> Constr dataTypeOf :: ZipList a -> DataType dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c (ZipList a)) dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (ZipList a)) gmapT :: (forall b. Data b => b -> b) -> ZipList a -> ZipList a gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> ZipList a -> r gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> ZipList a -> r gmapQ :: (forall d. Data d => d -> u) -> ZipList a -> [u] gmapQi :: Int -> (forall d. Data d => d -> u) -> ZipList a -> u gmapM :: Monad m => (forall d. Data d => d -> m d) -> ZipList a -> m (ZipList a) gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> ZipList a -> m (ZipList a) gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> ZipList a -> m (ZipList a) | |||||
| Generic (ZipList a) | |||||
Defined in GHC.Internal.Functor.ZipList Associated Types
| |||||
| IsList (ZipList a) | |||||
| Read a => Read (ZipList a) | |||||
Defined in GHC.Internal.Functor.ZipList | |||||
| Show a => Show (ZipList a) | |||||
| Eq a => Eq (ZipList a) | |||||
| Ord a => Ord (ZipList a) | |||||
| type Rep1 ZipList | |||||
Defined in GHC.Internal.Functor.ZipList | |||||
| type Rep (ZipList a) | |||||
Defined in GHC.Internal.Functor.ZipList | |||||
| type Item (ZipList a) | |||||
Defined in GHC.Internal.IsList type Item (ZipList a) = a | |||||
liftA3 :: Applicative f => (a -> b -> c -> d) -> f a -> f b -> f c -> f d #
optional :: Alternative f => f a -> f (Maybe a) #
(<**>) :: Applicative f => f a -> f (a -> b) -> f b #
Combinators
pass :: Applicative f => f () Source #
Shorter alias for pure ().
>>>pass :: Maybe ()Just ()
Useful shortcut when need an empty action:
printJust :: Maybe Int -> IO ()
printJust mInt = case mInt of
Just i -> putStrLn $ "Number: " ++ show i
Nothing -> pass
appliedTo :: Applicative f => f a -> f (a -> b) -> f b Source #
Named version of the <**> operator, which is <*> but flipped. It is
helpful for chaining applicative operations in forward applications using
&.
>>>Just (+ 1) & appliedTo (Just 2)Just 3>>>Just (+) & appliedTo (Just 1) & appliedTo (Just 2)Just 3>>>Nothing & appliedTo (Just 2)Nothing
Since: 0.5.0