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type
Setting (p :: Type -> Type -> Type) s t a b = p a Identity b -> s -> Identity tlens Control.Lens.Setter This is a convenient alias when defining highly polymorphic code that takes both ASetter and AnIndexedSetter as appropriate. If a function takes this it is expecting one of those two things based on context.
type
Setting' (p :: Type -> Type -> Type) s a = Setting p s s a alens Control.Lens.Setter This is a convenient alias when defining highly polymorphic code that takes both ASetter' and AnIndexedSetter' as appropriate. If a function takes this it is expecting one of those two things based on context.
type
Setter s t a b = forall (f :: Type -> Type) . Settable f => a -> f b -> s -> f tlens Control.Lens.Type The only LensLike law that can apply to a Setter l is that
set l y (set l x a) ≡ set l y a
You can't view a Setter in general, so the other two laws are irrelevant. However, two Functor laws apply to a Setter:over l id ≡ id over l f . over l g ≡ over l (f . g)
These can be stated more directly:l pure ≡ pure l f . untainted . l g ≡ l (f . untainted . g)
You can compose a Setter with a Lens or a Traversal using (.) from the Prelude and the result is always only a Setter and nothing more.>>> over traverse f [a,b,c,d] [f a,f b,f c,f d]
>>> over _1 f (a,b) (f a,b)
>>> over (traverse._1) f [(a,b),(c,d)] [(f a,b),(f c,d)]
>>> over both f (a,b) (f a,f b)
>>> over (traverse.both) f [(a,b),(c,d)] [(f a,f b),(f c,f d)]
type
Setter' s a = Setter s s a alens Control.Lens.Type A Setter' is just a Setter that doesn't change the types. These are particularly common when talking about monomorphic containers. e.g.
sets Data.Text.map :: Setter' Text Char
type Setter' = Simple Setter
SetOwnerAndGroupIsRestricted :: PathVarunix System.Posix.Files No documentation available.
SetOwnerAndGroupIsRestricted :: PathVarunix System.Posix.Files.ByteString No documentation available.
SetOwnerAndGroupIsRestricted :: PathVarunix System.Posix.Files.PosixString No documentation available.
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warp Network.Wai.Handler.Warp Various Warp server settings. This is purposely kept as an abstract data type so that new settings can be added without breaking backwards compatibility. In order to create a Settings value, use defaultSettings and the various 'set' functions to modify individual fields. For example:
setTimeout 20 defaultSettings
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warp Network.Wai.Handler.Warp.Internal Various Warp server settings. This is purposely kept as an abstract data type so that new settings can be added without breaking backwards compatibility. In order to create a Settings value, use defaultSettings and the various 'set' functions to modify individual fields. For example:
setTimeout 20 defaultSettings
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warp Network.Wai.Handler.Warp.Internal No documentation available.