lens-4.4: Lenses, Folds and Traversals

Portabilitynon-portable
Stabilityexperimental
MaintainerEdward Kmett <ekmett@gmail.com>
Safe HaskellTrustworthy

Control.Lens.Each

Contents

Description

 

Synopsis

Each

class Each s t a b | s -> a, t -> b, s b -> t, t a -> s whereSource

Extract each element of a (potentially monomorphic) container.

Notably, when applied to a tuple, this generalizes both to arbitrary homogeneous tuples.

>>> (1,2,3) & each *~ 10
(10,20,30)

It can also be used on monomorphic containers like Text or ByteString.

>>> over each Char.toUpper ("hello"^.Text.packed)
"HELLO"
>>> ("hello","world") & each.each %~ Char.toUpper
("HELLO","WORLD")

Methods

each :: Traversal s t a bSource

Instances

(~ * a Word8, ~ * b Word8) => Each ByteString ByteString a b
each :: Traversal ByteString ByteString Word8 Word8
(~ * a Word8, ~ * b Word8) => Each ByteString ByteString a b
each :: Traversal ByteString ByteString Word8 Word8
(~ * a Char, ~ * b Char) => Each Text Text a b
each :: Traversal Text Text Char Char
(~ * a Char, ~ * b Char) => Each Text Text a b
each :: Traversal Text Text Char Char
Each [a] [b] a b
each :: Traversal [a] [b] a b
Each (Complex a) (Complex b) a b
each :: (RealFloat a, RealFloat b) => Traversal (Complex a) (Complex b) a b
Each (Maybe a) (Maybe b) a b
each :: Traversal (Maybe a) (Maybe b) a b
Each (Identity a) (Identity b) a b
each :: Traversal (Identity a) (Identity b) a b
Each (Tree a) (Tree b) a b
each :: Traversal (Tree a) (Tree b) a b
Each (Seq a) (Seq b) a b
each :: Traversal (Seq a) (Seq b) a b
Each (IntMap a) (IntMap b) a b
each :: Traversal (Map c a) (Map c b) a b
Each (NonEmpty a) (NonEmpty b) a b
each :: Traversal (NonEmpty a) (NonEmpty b) a b
Each (Vector a) (Vector b) a b
each :: Traversal (Vector a) (Vector b) a b
(Unbox a, Unbox b) => Each (Vector a) (Vector b) a b
each :: (Unbox a, Unbox b) => Traversal (Vector a) (Vector b) a b
(Storable a, Storable b) => Each (Vector a) (Vector b) a b
each :: (Storable a, Storable b) => Traversal (Vector a) (Vector b) a b
(Prim a, Prim b) => Each (Vector a) (Vector b) a b
each :: (Prim a, Prim b) => Traversal (Vector a) (Vector b) a b
(~ * a a', ~ * b b') => Each (a, a') (b, b') a b
each :: Traversal (a,a) (b,b) a b
(Ix i, IArray UArray a, IArray UArray b, ~ * i j) => Each (UArray i a) (UArray j b) a b
each :: (Ix i, IArray UArray a, IArray UArray b) => Traversal (Array i a) (Array i b) a b
(Ix i, ~ * i j) => Each (Array i a) (Array j b) a b
each :: Ix i => Traversal (Array i a) (Array i b) a b
~ * c d => Each (Map c a) (Map d b) a b
each :: Traversal (Map c a) (Map c b) a b
~ * c d => Each (HashMap c a) (HashMap d b) a b
each :: Traversal (HashMap c a) (HashMap c b) a b
(~ * a a2, ~ * a a3, ~ * b b2, ~ * b b3) => Each (a, a2, a3) (b, b2, b3) a b
each :: Traversal (a,a,a) (b,b,b) a b
(~ * a a2, ~ * a a3, ~ * a a4, ~ * b b2, ~ * b b3, ~ * b b4) => Each (a, a2, a3, a4) (b, b2, b3, b4) a b
each :: Traversal (a,a,a,a) (b,b,b,b) a b
(~ * a a2, ~ * a a3, ~ * a a4, ~ * a a5, ~ * b b2, ~ * b b3, ~ * b b4, ~ * b b5) => Each (a, a2, a3, a4, a5) (b, b2, b3, b4, b5) a b
each :: Traversal (a,a,a,a,a) (b,b,b,b,b) a b
(~ * a a2, ~ * a a3, ~ * a a4, ~ * a a5, ~ * a a6, ~ * b b2, ~ * b b3, ~ * b b4, ~ * b b5, ~ * b b6) => Each (a, a2, a3, a4, a5, a6) (b, b2, b3, b4, b5, b6) a b
each :: Traversal (a,a,a,a,a,a) (b,b,b,b,b,b) a b
(~ * a a2, ~ * a a3, ~ * a a4, ~ * a a5, ~ * a a6, ~ * a a7, ~ * b b2, ~ * b b3, ~ * b b4, ~ * b b5, ~ * b b6, ~ * b b7) => Each (a, a2, a3, a4, a5, a6, a7) (b, b2, b3, b4, b5, b6, b7) a b
each :: Traversal (a,a,a,a,a,a,a) (b,b,b,b,b,b,b) a b
(~ * a a2, ~ * a a3, ~ * a a4, ~ * a a5, ~ * a a6, ~ * a a7, ~ * a a8, ~ * b b2, ~ * b b3, ~ * b b4, ~ * b b5, ~ * b b6, ~ * b b7, ~ * b b8) => Each (a, a2, a3, a4, a5, a6, a7, a8) (b, b2, b3, b4, b5, b6, b7, b8) a b
each :: Traversal (a,a,a,a,a,a,a,a) (b,b,b,b,b,b,b,b) a b
(~ * a a2, ~ * a a3, ~ * a a4, ~ * a a5, ~ * a a6, ~ * a a7, ~ * a a8, ~ * a a9, ~ * b b2, ~ * b b3, ~ * b b4, ~ * b b5, ~ * b b6, ~ * b b7, ~ * b b8, ~ * b b9) => Each (a, a2, a3, a4, a5, a6, a7, a8, a9) (b, b2, b3, b4, b5, b6, b7, b8, b9) a b
each :: Traversal (a,a,a,a,a,a,a,a,a) (b,b,b,b,b,b,b,b,b) a b