Copyright	(C) 2012-2016 Edward Kmett
License	BSD-style (see the file LICENSE)
Maintainer	Edward Kmett <ekmett@gmail.com>
Stability	experimental
Portability	non-portable
Safe Haskell	Trustworthy
Language	Haskell2010

Control.Lens.Internal.Zoom

Contents

Zoom
Magnify

Description

Synopsis

newtype Focusing (m :: Type -> Type) s a = Focusing {
- unfocusing :: m (s, a)
}
newtype FocusingWith w (m :: Type -> Type) s a = FocusingWith {
- unfocusingWith :: m (s, a, w)
}
newtype FocusingPlus w (k :: Type -> Type -> Type) s a = FocusingPlus {
- unfocusingPlus :: k (s, w) a
}
newtype FocusingOn (f :: Type -> Type) (k :: Type -> Type -> Type) s a = FocusingOn {
- unfocusingOn :: k (f s) a
}
newtype FocusingMay (k :: Type -> Type -> Type) s a = FocusingMay {
- unfocusingMay :: k (May s) a
}
newtype May a = May {
- getMay :: Maybe a
}
newtype FocusingErr e (k :: Type -> Type -> Type) s a = FocusingErr {
- unfocusingErr :: k (Err e s) a
}
newtype Err e a = Err {
- getErr :: Either e a
}
newtype FocusingFree (f :: Type -> Type) (m :: Type -> Type) (k :: Type -> Type -> Type) s a = FocusingFree {
- unfocusingFree :: k (Freed f m s) a
}
newtype Freed (f :: Type -> Type) (m :: Type -> Type) a = Freed {
- getFreed :: FreeF f a (FreeT f m a)
}
newtype Effect (m :: Type -> Type) r a = Effect {
- getEffect :: m r
}
newtype EffectRWS w st (m :: Type -> Type) s a = EffectRWS {
- getEffectRWS :: st -> m (s, st, w)
}

Zoom

newtype Focusing (m :: Type -> Type) s aSource #

Used by Zoom to zoom into StateT.

Constructors

Focusing
Fields unfocusing :: m (s, a)

Instances

Instances details

(Monad m, Monoid s) => Applicative (Focusing m s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods pure :: a -> Focusing m s a# (<>) :: Focusing m s (a -> b) -> Focusing m s a -> Focusing m s b# liftA2 :: (a -> b -> c) -> Focusing m s a -> Focusing m s b -> Focusing m s c# (>) :: Focusing m s a -> Focusing m s b -> Focusing m s b# (<*) :: Focusing m s a -> Focusing m s b -> Focusing m s a#
Monad m => Functor (Focusing m s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods fmap :: (a -> b) -> Focusing m s a -> Focusing m s b# (<$) :: a -> Focusing m s b -> Focusing m s a#
(Monad m, Semigroup s) => Apply (Focusing m s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods (<.>) :: Focusing m s (a -> b) -> Focusing m s a -> Focusing m s b# (.>) :: Focusing m s a -> Focusing m s b -> Focusing m s b# (<.) :: Focusing m s a -> Focusing m s b -> Focusing m s a# liftF2 :: (a -> b -> c) -> Focusing m s a -> Focusing m s b -> Focusing m s c#

newtype FocusingWith w (m :: Type -> Type) s aSource #

Used by Zoom to zoom into RWST.

Constructors

FocusingWith
Fields unfocusingWith :: m (s, a, w)

Instances

Instances details

(Monad m, Monoid s, Monoid w) => Applicative (FocusingWith w m s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods pure :: a -> FocusingWith w m s a# (<>) :: FocusingWith w m s (a -> b) -> FocusingWith w m s a -> FocusingWith w m s b# liftA2 :: (a -> b -> c) -> FocusingWith w m s a -> FocusingWith w m s b -> FocusingWith w m s c# (>) :: FocusingWith w m s a -> FocusingWith w m s b -> FocusingWith w m s b# (<*) :: FocusingWith w m s a -> FocusingWith w m s b -> FocusingWith w m s a#
Monad m => Functor (FocusingWith w m s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods fmap :: (a -> b) -> FocusingWith w m s a -> FocusingWith w m s b# (<$) :: a -> FocusingWith w m s b -> FocusingWith w m s a#
(Monad m, Semigroup s, Semigroup w) => Apply (FocusingWith w m s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods (<.>) :: FocusingWith w m s (a -> b) -> FocusingWith w m s a -> FocusingWith w m s b# (.>) :: FocusingWith w m s a -> FocusingWith w m s b -> FocusingWith w m s b# (<.) :: FocusingWith w m s a -> FocusingWith w m s b -> FocusingWith w m s a# liftF2 :: (a -> b -> c) -> FocusingWith w m s a -> FocusingWith w m s b -> FocusingWith w m s c#

newtype FocusingPlus w (k :: Type -> Type -> Type) s aSource #

Used by Zoom to zoom into WriterT.

Constructors

FocusingPlus
Fields unfocusingPlus :: k (s, w) a

Instances

Instances details

Applicative (k (s, w)) => Applicative (FocusingPlus w k s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods pure :: a -> FocusingPlus w k s a# (<>) :: FocusingPlus w k s (a -> b) -> FocusingPlus w k s a -> FocusingPlus w k s b# liftA2 :: (a -> b -> c) -> FocusingPlus w k s a -> FocusingPlus w k s b -> FocusingPlus w k s c# (>) :: FocusingPlus w k s a -> FocusingPlus w k s b -> FocusingPlus w k s b# (<*) :: FocusingPlus w k s a -> FocusingPlus w k s b -> FocusingPlus w k s a#
Functor (k (s, w)) => Functor (FocusingPlus w k s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods fmap :: (a -> b) -> FocusingPlus w k s a -> FocusingPlus w k s b# (<$) :: a -> FocusingPlus w k s b -> FocusingPlus w k s a#
Apply (k (s, w)) => Apply (FocusingPlus w k s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods (<.>) :: FocusingPlus w k s (a -> b) -> FocusingPlus w k s a -> FocusingPlus w k s b# (.>) :: FocusingPlus w k s a -> FocusingPlus w k s b -> FocusingPlus w k s b# (<.) :: FocusingPlus w k s a -> FocusingPlus w k s b -> FocusingPlus w k s a# liftF2 :: (a -> b -> c) -> FocusingPlus w k s a -> FocusingPlus w k s b -> FocusingPlus w k s c#

newtype FocusingOn (f :: Type -> Type) (k :: Type -> Type -> Type) s aSource #

Used by Zoom to zoom into MaybeT or ListT.

Constructors

FocusingOn
Fields unfocusingOn :: k (f s) a

Instances

Instances details

Applicative (k (f s)) => Applicative (FocusingOn f k s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods pure :: a -> FocusingOn f k s a# (<>) :: FocusingOn f k s (a -> b) -> FocusingOn f k s a -> FocusingOn f k s b# liftA2 :: (a -> b -> c) -> FocusingOn f k s a -> FocusingOn f k s b -> FocusingOn f k s c# (>) :: FocusingOn f k s a -> FocusingOn f k s b -> FocusingOn f k s b# (<*) :: FocusingOn f k s a -> FocusingOn f k s b -> FocusingOn f k s a#
Functor (k (f s)) => Functor (FocusingOn f k s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods fmap :: (a -> b) -> FocusingOn f k s a -> FocusingOn f k s b# (<$) :: a -> FocusingOn f k s b -> FocusingOn f k s a#
Apply (k (f s)) => Apply (FocusingOn f k s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods (<.>) :: FocusingOn f k s (a -> b) -> FocusingOn f k s a -> FocusingOn f k s b# (.>) :: FocusingOn f k s a -> FocusingOn f k s b -> FocusingOn f k s b# (<.) :: FocusingOn f k s a -> FocusingOn f k s b -> FocusingOn f k s a# liftF2 :: (a -> b -> c) -> FocusingOn f k s a -> FocusingOn f k s b -> FocusingOn f k s c#

newtype FocusingMay (k :: Type -> Type -> Type) s aSource #

Used by Zoom to zoom into ErrorT.

Constructors

FocusingMay
Fields unfocusingMay :: k (May s) a

Instances

Instances details

Applicative (k (May s)) => Applicative (FocusingMay k s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods pure :: a -> FocusingMay k s a# (<>) :: FocusingMay k s (a -> b) -> FocusingMay k s a -> FocusingMay k s b# liftA2 :: (a -> b -> c) -> FocusingMay k s a -> FocusingMay k s b -> FocusingMay k s c# (>) :: FocusingMay k s a -> FocusingMay k s b -> FocusingMay k s b# (<*) :: FocusingMay k s a -> FocusingMay k s b -> FocusingMay k s a#
Functor (k (May s)) => Functor (FocusingMay k s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods fmap :: (a -> b) -> FocusingMay k s a -> FocusingMay k s b# (<$) :: a -> FocusingMay k s b -> FocusingMay k s a#
Apply (k (May s)) => Apply (FocusingMay k s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods (<.>) :: FocusingMay k s (a -> b) -> FocusingMay k s a -> FocusingMay k s b# (.>) :: FocusingMay k s a -> FocusingMay k s b -> FocusingMay k s b# (<.) :: FocusingMay k s a -> FocusingMay k s b -> FocusingMay k s a# liftF2 :: (a -> b -> c) -> FocusingMay k s a -> FocusingMay k s b -> FocusingMay k s c#

newtype May aSource #

Make a Monoid out of Maybe for error handling.

Constructors

May
Fields getMay :: Maybe a

Instances

Instances details

Monoid a => Monoid (May a) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods mempty :: May a# mappend :: May a -> May a -> May a# mconcat :: [May a] -> May a#
Semigroup a => Semigroup (May a) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods (<>) :: May a -> May a -> May a# sconcat :: NonEmpty (May a) -> May a# stimes :: Integral b => b -> May a -> May a#

newtype FocusingErr e (k :: Type -> Type -> Type) s aSource #

Used by Zoom to zoom into ErrorT.

Constructors

FocusingErr
Fields unfocusingErr :: k (Err e s) a

Instances

Instances details

Applicative (k (Err e s)) => Applicative (FocusingErr e k s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods pure :: a -> FocusingErr e k s a# (<>) :: FocusingErr e k s (a -> b) -> FocusingErr e k s a -> FocusingErr e k s b# liftA2 :: (a -> b -> c) -> FocusingErr e k s a -> FocusingErr e k s b -> FocusingErr e k s c# (>) :: FocusingErr e k s a -> FocusingErr e k s b -> FocusingErr e k s b# (<*) :: FocusingErr e k s a -> FocusingErr e k s b -> FocusingErr e k s a#
Functor (k (Err e s)) => Functor (FocusingErr e k s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods fmap :: (a -> b) -> FocusingErr e k s a -> FocusingErr e k s b# (<$) :: a -> FocusingErr e k s b -> FocusingErr e k s a#
Apply (k (Err e s)) => Apply (FocusingErr e k s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods (<.>) :: FocusingErr e k s (a -> b) -> FocusingErr e k s a -> FocusingErr e k s b# (.>) :: FocusingErr e k s a -> FocusingErr e k s b -> FocusingErr e k s b# (<.) :: FocusingErr e k s a -> FocusingErr e k s b -> FocusingErr e k s a# liftF2 :: (a -> b -> c) -> FocusingErr e k s a -> FocusingErr e k s b -> FocusingErr e k s c#

newtype Err e aSource #

Make a Monoid out of Either for error handling.

Constructors

Err
Fields getErr :: Either e a

Instances

Instances details

Monoid a => Monoid (Err e a) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods mempty :: Err e a# mappend :: Err e a -> Err e a -> Err e a# mconcat :: [Err e a] -> Err e a#
Semigroup a => Semigroup (Err e a) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods (<>) :: Err e a -> Err e a -> Err e a# sconcat :: NonEmpty (Err e a) -> Err e a# stimes :: Integral b => b -> Err e a -> Err e a#

newtype FocusingFree (f :: Type -> Type) (m :: Type -> Type) (k :: Type -> Type -> Type) s aSource #

Used by Zoom to zoom into FreeT

Constructors

FocusingFree
Fields unfocusingFree :: k (Freed f m s) a

Instances

Instances details

Applicative (k (Freed f m s)) => Applicative (FocusingFree f m k s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods pure :: a -> FocusingFree f m k s a# (<>) :: FocusingFree f m k s (a -> b) -> FocusingFree f m k s a -> FocusingFree f m k s b# liftA2 :: (a -> b -> c) -> FocusingFree f m k s a -> FocusingFree f m k s b -> FocusingFree f m k s c# (>) :: FocusingFree f m k s a -> FocusingFree f m k s b -> FocusingFree f m k s b# (<*) :: FocusingFree f m k s a -> FocusingFree f m k s b -> FocusingFree f m k s a#
Functor (k (Freed f m s)) => Functor (FocusingFree f m k s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods fmap :: (a -> b) -> FocusingFree f m k s a -> FocusingFree f m k s b# (<$) :: a -> FocusingFree f m k s b -> FocusingFree f m k s a#
Apply (k (Freed f m s)) => Apply (FocusingFree f m k s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods (<.>) :: FocusingFree f m k s (a -> b) -> FocusingFree f m k s a -> FocusingFree f m k s b# (.>) :: FocusingFree f m k s a -> FocusingFree f m k s b -> FocusingFree f m k s b# (<.) :: FocusingFree f m k s a -> FocusingFree f m k s b -> FocusingFree f m k s a# liftF2 :: (a -> b -> c) -> FocusingFree f m k s a -> FocusingFree f m k s b -> FocusingFree f m k s c#

newtype Freed (f :: Type -> Type) (m :: Type -> Type) aSource #

Make a Monoid out of FreeF for result collection.

Constructors

Freed
Fields getFreed :: FreeF f a (FreeT f m a)

Instances

Instances details

(Applicative f, Monoid a, Monad m) => Monoid (Freed f m a) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods mempty :: Freed f m a# mappend :: Freed f m a -> Freed f m a -> Freed f m a# mconcat :: [Freed f m a] -> Freed f m a#
(Applicative f, Semigroup a, Monad m) => Semigroup (Freed f m a) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods (<>) :: Freed f m a -> Freed f m a -> Freed f m a# sconcat :: NonEmpty (Freed f m a) -> Freed f m a# stimes :: Integral b => b -> Freed f m a -> Freed f m a#

Magnify

newtype Effect (m :: Type -> Type) r aSource #

Wrap a monadic effect with a phantom type argument.

Constructors

Effect
Fields getEffect :: m r

Instances

Instances details

Contravariant (Effect m r) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods contramap :: (a' -> a) -> Effect m r a -> Effect m r a'# (>$) :: b -> Effect m r b -> Effect m r a#
(Monad m, Monoid r) => Applicative (Effect m r) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods pure :: a -> Effect m r a# (<>) :: Effect m r (a -> b) -> Effect m r a -> Effect m r b# liftA2 :: (a -> b -> c) -> Effect m r a -> Effect m r b -> Effect m r c# (>) :: Effect m r a -> Effect m r b -> Effect m r b# (<*) :: Effect m r a -> Effect m r b -> Effect m r a#
Functor (Effect m r) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods fmap :: (a -> b) -> Effect m r a -> Effect m r b# (<$) :: a -> Effect m r b -> Effect m r a#
(Apply m, Semigroup r) => Apply (Effect m r) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods (<.>) :: Effect m r (a -> b) -> Effect m r a -> Effect m r b# (.>) :: Effect m r a -> Effect m r b -> Effect m r b# (<.) :: Effect m r a -> Effect m r b -> Effect m r a# liftF2 :: (a -> b -> c) -> Effect m r a -> Effect m r b -> Effect m r c#
(Monad m, Monoid r) => Monoid (Effect m r a) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods mempty :: Effect m r a# mappend :: Effect m r a -> Effect m r a -> Effect m r a# mconcat :: [Effect m r a] -> Effect m r a#
(Monad m, Semigroup r) => Semigroup (Effect m r a) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods (<>) :: Effect m r a -> Effect m r a -> Effect m r a# sconcat :: NonEmpty (Effect m r a) -> Effect m r a# stimes :: Integral b => b -> Effect m r a -> Effect m r a#

newtype EffectRWS w st (m :: Type -> Type) s aSource #

Wrap a monadic effect with a phantom type argument. Used when magnifying RWST.

Constructors

EffectRWS
Fields getEffectRWS :: st -> m (s, st, w)

Instances

Instances details

Contravariant (EffectRWS w st m s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods contramap :: (a' -> a) -> EffectRWS w st m s a -> EffectRWS w st m s a'# (>$) :: b -> EffectRWS w st m s b -> EffectRWS w st m s a#
(Monoid s, Monoid w, Monad m) => Applicative (EffectRWS w st m s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods pure :: a -> EffectRWS w st m s a# (<>) :: EffectRWS w st m s (a -> b) -> EffectRWS w st m s a -> EffectRWS w st m s b# liftA2 :: (a -> b -> c) -> EffectRWS w st m s a -> EffectRWS w st m s b -> EffectRWS w st m s c# (>) :: EffectRWS w st m s a -> EffectRWS w st m s b -> EffectRWS w st m s b# (<*) :: EffectRWS w st m s a -> EffectRWS w st m s b -> EffectRWS w st m s a#
Functor (EffectRWS w st m s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods fmap :: (a -> b) -> EffectRWS w st m s a -> EffectRWS w st m s b# (<$) :: a -> EffectRWS w st m s b -> EffectRWS w st m s a#
(Semigroup s, Semigroup w, Bind m) => Apply (EffectRWS w st m s) Source #
Instance details Defined in Control.Lens.Internal.Zoom Methods (<.>) :: EffectRWS w st m s (a -> b) -> EffectRWS w st m s a -> EffectRWS w st m s b# (.>) :: EffectRWS w st m s a -> EffectRWS w st m s b -> EffectRWS w st m s b# (<.) :: EffectRWS w st m s a -> EffectRWS w st m s b -> EffectRWS w st m s a# liftF2 :: (a -> b -> c) -> EffectRWS w st m s a -> EffectRWS w st m s b -> EffectRWS w st m s c#