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

Control.Parallel.Strategies.Lens

Description

A Lens or Traversal can be used to take the role of Traversable in Control.Parallel.Strategies, enabling those combinators to work with monomorphic containers.

Synopsis

evalOf :: LensLike' Eval s a -> Strategy a -> Strategy s
parOf :: LensLike' Eval s a -> Strategy a -> Strategy s
after :: Strategy s -> LensLike f s t a b -> LensLike f s t a b
throughout :: Strategy s -> LensLike f s t a b -> LensLike f s t a b

Documentation

evalOf :: LensLike' Eval s a -> Strategy a -> Strategy s Source #

Evaluate the targets of a Lens or Traversal into a data structure according to the given Strategy.

evalTraversable = evalOf traverse = traverse
evalOf = id

evalOf :: Lens' s a -> Strategy a -> Strategy s
evalOf :: Traversal' s a -> Strategy a -> Strategy s
evalOf :: (a -> Eval a) -> s -> Eval s) -> Strategy a -> Strategy s

parOf :: LensLike' Eval s a -> Strategy a -> Strategy s Source #

Evaluate the targets of a Lens or Traversal according into a data structure according to a given Strategy in parallel.

parTraversable = parOf traverse

parOf :: Lens' s a -> Strategy a -> Strategy s
parOf :: Traversal' s a -> Strategy a -> Strategy s
parOf :: ((a -> Eval a) -> s -> Eval s) -> Strategy a -> Strategy s

after :: Strategy s -> LensLike f s t a b -> LensLike f s t a b Source #

Transform a Lens, Fold, Getter, Setter or Traversal to first evaluates its argument according to a given Strategy before proceeding.

after rdeepseq traverse :: Traversable t => Strategy a -> Strategy [a]

throughout :: Strategy s -> LensLike f s t a b -> LensLike f s t a b Source #

Transform a Lens, Fold, Getter, Setter or Traversal to evaluate its argument according to a given Strategy in parallel with evaluating.

throughout rdeepseq traverse :: Traversable t => Strategy a -> Strategy [a]