Portability	portable
Stability	provisional
Maintainer	Edward Kmett <ekmett@gmail.com>
Safe Haskell	Trustworthy

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

Documentation

evalOf :: LensLike' Eval s a -> Strategy a -> Strategy sSource

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 sSource

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 bSource

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 bSource

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]