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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="src/Control-Lens-Empty.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 <ekmett@gmail.com></td></tr><tr><th>Stability</th><td>provisional</td></tr><tr><th>Portability</th><td>non-portable</td></tr><tr><th>Safe Haskell</th><td>Trustworthy</td></tr><tr><th>Language</th><td>Haskell98</td></tr></table><p class="caption">Control.Lens.Empty</p></div><div id="description"><p class="caption">Description</p><div class="doc empty"> </div></div><div id="interface"><h1>Documentation</h1><div class="top"><p class="src"><span class="keyword">class</span> <a name="t:AsEmpty" class="def">AsEmpty</a> a <span class="keyword">where</span> <a href="src/Control-Lens-Empty.html#AsEmpty" class="link">Source</a></p><div class="subs minimal"><p class="caption">Minimal complete definition</p><p class="src">Nothing</p></div><div class="subs methods"><p class="caption">Methods</p><p class="src"><a name="v:_Empty" class="def">_Empty</a> :: <a href="Control-Lens-Type.html#t:Prism-39-">Prism'</a> a () <a href="src/Control-Lens-Empty.html#_Empty" class="link">Source</a></p><div class="doc"><pre class="screen"><code class="prompt">>>> </code><strong class="userinput"><code>isn't _Empty [1,2,3]
</code></strong>True
</pre></div></div><div class="subs instances"><p id="control.i:AsEmpty" class="caption collapser" onclick="toggleSection('i:AsEmpty')">Instances</p><div id="section.i:AsEmpty" class="show"><table><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Ord.html#t:Ordering">Ordering</a></span> <a href="src/Control-Lens-Empty.html#line-78" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> ()</span> <a href="src/Control-Lens-Empty.html#line-79" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Event.html#t:Event">Event</a></span> <a href="src/Control-Lens-Empty.html#line-83" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Monoid.html#t:All">All</a></span> <a href="src/Control-Lens-Empty.html#line-81" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Monoid.html#t:Any">Any</a></span> <a href="src/Control-Lens-Empty.html#line-80" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> <a href="file:///usr/share/doc/ghc-doc/html/libraries/bytestring-0.10.6.0/Data-ByteString.html#t:ByteString">ByteString</a></span> <a href="src/Control-Lens-Empty.html#line-166" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> <a href="file:///usr/share/doc/ghc-doc/html/libraries/bytestring-0.10.6.0/Data-ByteString-Lazy.html#t:ByteString">ByteString</a></span> <a href="src/Control-Lens-Empty.html#line-170" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> <a href="file:///usr/share/doc/ghc-doc/html/libraries/containers-0.5.6.2/Data-IntSet.html#t:IntSet">IntSet</a></span> <a href="src/Control-Lens-Empty.html#line-146" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> <a href="file:///usr/share/doc/libghc-text-doc/html/Data-Text-Lazy.html#t:Text">Text</a></span> <a href="src/Control-Lens-Empty.html#line-178" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> <a href="file:///usr/share/doc/libghc-text-doc/html/Data-Text.html#t:Text">Text</a></span> <a href="src/Control-Lens-Empty.html#line-174" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> [a]</span> <a href="src/Control-Lens-Empty.html#line-122" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> a => <a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Monoid.html#t:Dual">Dual</a> a)</span> <a href="src/Control-Lens-Empty.html#line-100" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left">(<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Eq.html#t:Eq">Eq</a> a, <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Prelude.html#t:Num">Num</a> a) => <a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Monoid.html#t:Sum">Sum</a> a)</span> <a href="src/Control-Lens-Empty.html#line-86" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left">(<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Eq.html#t:Eq">Eq</a> a, <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Prelude.html#t:Num">Num</a> a) => <a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Monoid.html#t:Product">Product</a> a)</span> <a href="src/Control-Lens-Empty.html#line-85" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Monoid.html#t:First">First</a> a)</span> <a href="src/Control-Lens-Empty.html#line-96" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Monoid.html#t:Last">Last</a> a)</span> <a href="src/Control-Lens-Empty.html#line-92" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Maybe.html#t:Maybe">Maybe</a> a)</span> <a href="src/Control-Lens-Empty.html#line-88" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/containers-0.5.6.2/Data-IntMap-Strict.html#t:IntMap">IntMap</a> a)</span> <a href="src/Control-Lens-Empty.html#line-134" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/containers-0.5.6.2/Data-Set.html#t:Set">Set</a> a)</span> <a href="src/Control-Lens-Empty.html#line-138" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/containers-0.5.6.2/Data-Sequence.html#t:Seq">Seq</a> a)</span> <a href="src/Control-Lens-Empty.html#line-162" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> (<a href="file:///usr/share/doc/libghc-unordered-containers-doc/html/Data-HashSet.html#t:HashSet">HashSet</a> a)</span> <a href="src/Control-Lens-Empty.html#line-142" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> (<a href="file:///usr/share/doc/libghc-vector-doc/html/Data-Vector.html#t:Vector">Vector</a> a)</span> <a href="src/Control-Lens-Empty.html#line-150" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="file:///usr/share/doc/libghc-vector-doc/html/Data-Vector-Unboxed.html#t:Unbox">Unbox</a> a => <a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> (<a href="file:///usr/share/doc/libghc-vector-doc/html/Data-Vector-Unboxed.html#t:Vector">Vector</a> a)</span> <a href="src/Control-Lens-Empty.html#line-154" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Foreign-Storable.html#t:Storable">Storable</a> a => <a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> (<a href="file:///usr/share/doc/libghc-vector-doc/html/Data-Vector-Storable.html#t:Vector">Vector</a> a)</span> <a href="src/Control-Lens-Empty.html#line-158" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left">(<a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> a, <a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> b) => <a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> (a, b)</span> <a href="src/Control-Lens-Empty.html#line-104" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/containers-0.5.6.2/Data-Map-Lazy.html#t:Map">Map</a> k a)</span> <a href="src/Control-Lens-Empty.html#line-126" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> (<a href="file:///usr/share/doc/libghc-unordered-containers-doc/html/Data-HashMap-Strict.html#t:HashMap">HashMap</a> k a)</span> <a href="src/Control-Lens-Empty.html#line-130" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left">(<a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> a, <a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> b, <a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> c) => <a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> (a, b, c)</span> <a href="src/Control-Lens-Empty.html#line-112" class="link">Source</a></td><td class="doc empty"> </td></tr></table></div></div></div><div class="top"><p class="src"><span class="keyword">pattern</span> <a name="v:Empty" class="def">Empty</a> :: () => <a href="Control-Lens-Empty.html#t:AsEmpty">AsEmpty</a> s => s <a href="src/Control-Lens-Empty.html#Empty" class="link">Source</a></p></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>
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