/usr/share/doc/libghc-lens-doc/html/GHC-Generics-Lens.html

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>GHC.Generics.Lens</title><link href="ocean.css" rel="stylesheet" type="text/css" title="Ocean" /><script src="haddock-util.js" type="text/javascript"></script><script type="text/javascript">//<![CDATA[
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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="src/GHC-Generics-Lens.html">Source</a></li><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">lens-4.13: Lenses, Folds and Traversals</p></div><div id="content"><div id="module-header"><table class="info"><tr><th>Copyright</th><td>(C) 2012-15 Edward Kmett</td></tr><tr><th>License</th><td>BSD-style (see the file LICENSE)</td></tr><tr><th>Maintainer</th><td>Edward Kmett &lt;ekmett@gmail.com&gt;</td></tr><tr><th>Stability</th><td>experimental</td></tr><tr><th>Portability</th><td>GHC</td></tr><tr><th>Safe Haskell</th><td>None</td></tr><tr><th>Language</th><td>Haskell98</td></tr></table><p class="caption">GHC.Generics.Lens</p></div><div id="description"><p class="caption">Description</p><div class="doc"><p>Note: <code>GHC.Generics</code> exports a number of names that collide with <code>Control.Lens</code>.</p><p>You can use hiding or imports to mitigate this to an extent, and the following imports,
 represent a fair compromise for user code:</p><pre>import Control.Lens hiding (Rep)
import GHC.Generics hiding (from, to)</pre><p>You can use <code><a href="Generics-Deriving-Lens.html#v:generic">generic</a></code> to replace <code><a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#v:from">from</a></code> and <code><a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#v:to">to</a></code> from <code>GHC.Generics</code>,
 and probably won't be explicitly referencing <code><a href="Control-Lens-Representable.html#v:Rep">Rep</a></code> from <code>Control.Lens</code>
 in code that uses generics.</p><p>This module provides compatibility with older GHC versions by using the
 <a href="http://hackage.haskell.org/package/generic-deriving">generic-deriving</a>
 package.</p></div></div><div id="synopsis"><p id="control.syn" class="caption expander" onclick="toggleSection('syn')">Synopsis</p><ul id="section.syn" class="hide" onclick="toggleSection('syn')"><li class="src short">module <a href="Generics-Deriving-Lens.html">Generics.Deriving.Lens</a></li><li class="src short"><a href="#v:_V1">_V1</a> :: <a href="Control-Lens-Type.html#t:Over">Over</a> p f (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:V1">V1</a> s) (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:V1">V1</a> t) a b</li><li class="src short"><a href="#v:_U1">_U1</a> :: <a href="Control-Lens-Type.html#t:Iso">Iso</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:U1">U1</a> p) (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:U1">U1</a> q) () ()</li><li class="src short"><a href="#v:_Par1">_Par1</a> :: <a href="Control-Lens-Type.html#t:Iso">Iso</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Par1">Par1</a> p) (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Par1">Par1</a> q) p q</li><li class="src short"><a href="#v:_Rec1">_Rec1</a> :: <a href="Control-Lens-Type.html#t:Iso">Iso</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Rec1">Rec1</a> f p) (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Rec1">Rec1</a> g q) (f p) (g q)</li><li class="src short"><a href="#v:_K1">_K1</a> :: <a href="Control-Lens-Type.html#t:Iso">Iso</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:K1">K1</a> i c p) (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:K1">K1</a> j d q) c d</li><li class="src short"><a href="#v:_M1">_M1</a> :: <a href="Control-Lens-Type.html#t:Iso">Iso</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:M1">M1</a> i c f p) (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:M1">M1</a> j d g q) (f p) (g q)</li><li class="src short"><a href="#v:_L1">_L1</a> :: <a href="Control-Lens-Type.html#t:Prism-39-">Prism'</a> ((f <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t::-43-:">:+:</a> g) a) (f a)</li><li class="src short"><a href="#v:_R1">_R1</a> :: <a href="Control-Lens-Type.html#t:Prism-39-">Prism'</a> ((f <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t::-43-:">:+:</a> g) a) (g a)</li></ul></div><div id="interface"><h1>Documentation</h1><div class="top"><p class="src">module <a href="Generics-Deriving-Lens.html">Generics.Deriving.Lens</a></p></div><div class="top"><p class="src"><a name="v:_V1" class="def">_V1</a> :: <a href="Control-Lens-Type.html#t:Over">Over</a> p f (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:V1">V1</a> s) (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:V1">V1</a> t) a b <a href="src/GHC-Generics-Lens.html#_V1" class="link">Source</a></p></div><div class="top"><p class="src"><a name="v:_U1" class="def">_U1</a> :: <a href="Control-Lens-Type.html#t:Iso">Iso</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:U1">U1</a> p) (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:U1">U1</a> q) () () <a href="src/GHC-Generics-Lens.html#_U1" class="link">Source</a></p></div><div class="top"><p class="src"><a name="v:_Par1" class="def">_Par1</a> :: <a href="Control-Lens-Type.html#t:Iso">Iso</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Par1">Par1</a> p) (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Par1">Par1</a> q) p q <a href="src/GHC-Generics-Lens.html#_Par1" class="link">Source</a></p></div><div class="top"><p class="src"><a name="v:_Rec1" class="def">_Rec1</a> :: <a href="Control-Lens-Type.html#t:Iso">Iso</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Rec1">Rec1</a> f p) (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Rec1">Rec1</a> g q) (f p) (g q) <a href="src/GHC-Generics-Lens.html#_Rec1" class="link">Source</a></p></div><div class="top"><p class="src"><a name="v:_K1" class="def">_K1</a> :: <a href="Control-Lens-Type.html#t:Iso">Iso</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:K1">K1</a> i c p) (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:K1">K1</a> j d q) c d <a href="src/GHC-Generics-Lens.html#_K1" class="link">Source</a></p></div><div class="top"><p class="src"><a name="v:_M1" class="def">_M1</a> :: <a href="Control-Lens-Type.html#t:Iso">Iso</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:M1">M1</a> i c f p) (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:M1">M1</a> j d g q) (f p) (g q) <a href="src/GHC-Generics-Lens.html#_M1" class="link">Source</a></p></div><div class="top"><p class="src"><a name="v:_L1" class="def">_L1</a> :: <a href="Control-Lens-Type.html#t:Prism-39-">Prism'</a> ((f <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t::-43-:">:+:</a> g) a) (f a) <a href="src/GHC-Generics-Lens.html#_L1" class="link">Source</a></p></div><div class="top"><p class="src"><a name="v:_R1" class="def">_R1</a> :: <a href="Control-Lens-Type.html#t:Prism-39-">Prism'</a> ((f <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t::-43-:">:+:</a> g) a) (g a) <a href="src/GHC-Generics-Lens.html#_R1" class="link">Source</a></p><div class="doc"><p>You can access fields of `data (f :*: g) p` by using it's <code><a href="Control-Lens-Tuple.html#t:Field1">Field1</a></code> and <code><a href="Control-Lens-Tuple.html#t:Field2">Field2</a></code> instances</p></div></div></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.16.1</p></div></body></html>
libghc-lens-doc 4.13-1 / usr / share / doc / libghc-lens-doc / html / GHC-Generics-Lens.html
