Copyright | (C) 2012-16 Edward Kmett |
---|---|
License | BSD-style (see the file LICENSE) |
Maintainer | Edward Kmett <ekmett@gmail.com> |
Stability | experimental |
Portability | GHC |
Safe Haskell | Safe-Inferred |
Language | Haskell2010 |
You can use hiding or imports to mitigate this to an extent, and the following imports, represent a fair compromise for user code:
import Control.Lens hiding (Rep) import GHC.Generics hiding (from, to)
You can use generic
to replace from
and to
from GHC.Generics
,
and probably won't be explicitly referencing Rep
from Control.Lens
in code that uses generics.
This module provides compatibility with older GHC versions by using the generic-deriving package.
Synopsis
- generic :: (Generic a, Generic b) => Iso a b (Rep a g) (Rep b h)
- generic1 :: (Generic1 f, Generic1 g) => Iso (f a) (g b) (Rep1 f a) (Rep1 g b)
- _V1 :: Over p f (V1 s) (V1 t) a b
- _U1 :: Iso (U1 p) (U1 q) () ()
- _Par1 :: Iso (Par1 p) (Par1 q) p q
- _Rec1 :: Iso (Rec1 f p) (Rec1 g q) (f p) (g q)
- _K1 :: Iso (K1 i c p) (K1 j d q) c d
- _M1 :: Iso (M1 i c f p) (M1 j d g q) (f p) (g q)
- _L1 :: Prism' ((f :+: g) a) (f a)
- _R1 :: Prism' ((f :+: g) a) (g a)
- _UAddr :: Iso (UAddr p) (UAddr q) (Ptr c) (Ptr d)
- _UChar :: Iso (UChar p) (UChar q) Char Char
- _UDouble :: Iso (UDouble p) (UDouble q) Double Double
- _UFloat :: Iso (UFloat p) (UFloat q) Float Float
- _UInt :: Iso (UInt p) (UInt q) Int Int
- _UWord :: Iso (UWord p) (UWord q) Word Word
Documentation
generic :: (Generic a, Generic b) => Iso a b (Rep a g) (Rep b h) Source #
Convert from the data type to its representation (or back)
>>>
"hello"^.generic.from generic :: String
"hello"
generic1 :: (Generic1 f, Generic1 g) => Iso (f a) (g b) (Rep1 f a) (Rep1 g b) Source #
Convert from the data type to its representation (or back)