lens-4.15.3: Lenses, Folds and Traversals

Copyright(C) 2012-2016 Edward Kmett
LicenseBSD-style (see the file LICENSE)
MaintainerEdward Kmett <ekmett@gmail.com>
Stabilityexperimental
Portabilitynon-portable
Safe HaskellNone
LanguageHaskell98

Data.Dynamic.Lens

Description

 

Synopsis

Documentation

class AsDynamic t where Source #

Any Dynamic can be thrown as an Exception

Methods

_Dynamic :: Typeable a => Prism' t a Source #

This Prism allows you to traverse the typed value contained in a Dynamic where the type required by your function matches that of the contents of the Dynamic, or construct a Dynamic value out of whole cloth. It can also be used to catch or throw a Dynamic value as SomeException.

_Dynamic :: Typeable a => Prism' Dynamic       a
_Dynamic :: Typeable a => Prism' SomeException a

pattern Dynamic :: forall t s. (Typeable * t, AsDynamic s) => t -> s Source #