This file is indexed.

/usr/share/doc/libghc-tagged-doc/html/Data-Tagged.html is in libghc-tagged-doc 0.8.2-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
<!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>Data.Tagged</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[
window.onload = function () {pageLoad();setSynopsis("mini_Data-Tagged.html");};
//]]>
</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="src/Data-Tagged.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">tagged-0.8.2: Haskell 98 phantom types to avoid unsafely passing dummy arguments</p></div><div id="content"><div id="module-header"><table class="info"><tr><th>Copyright</th><td>2009-2015 Edward Kmett</td></tr><tr><th>License</th><td>BSD3</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>portable</td></tr><tr><th>Safe Haskell</th><td>Safe</td></tr><tr><th>Language</th><td>Haskell98</td></tr></table><p class="caption">Data.Tagged</p></div><div id="table-of-contents"><p class="caption">Contents</p><ul><li><a href="#g:1">Tagged values</a></li><li><a href="#g:2">Conversion</a></li><li><a href="#g:3">Proxy methods GHC dropped</a></li></ul></div><div id="description"><p class="caption">Description</p><div class="doc empty">&nbsp;</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"><span class="keyword">newtype</span> <a href="#t:Tagged">Tagged</a> s b = <a href="#v:Tagged">Tagged</a> {<ul class="subs"><li><a href="#v:unTagged">unTagged</a> :: b</li></ul>}</li><li class="src short"><a href="#v:retag">retag</a> :: <a href="Data-Tagged.html#t:Tagged">Tagged</a> s b -&gt; <a href="Data-Tagged.html#t:Tagged">Tagged</a> t b</li><li class="src short"><a href="#v:untag">untag</a> :: <a href="Data-Tagged.html#t:Tagged">Tagged</a> s b -&gt; b</li><li class="src short"><a href="#v:tagSelf">tagSelf</a> :: a -&gt; <a href="Data-Tagged.html#t:Tagged">Tagged</a> a a</li><li class="src short"><a href="#v:untagSelf">untagSelf</a> :: <a href="Data-Tagged.html#t:Tagged">Tagged</a> a a -&gt; a</li><li class="src short"><a href="#v:asTaggedTypeOf">asTaggedTypeOf</a> :: s -&gt; tagged s b -&gt; s</li><li class="src short"><a href="#v:witness">witness</a> :: <a href="Data-Tagged.html#t:Tagged">Tagged</a> a b -&gt; a -&gt; b</li><li class="src short"><a href="#v:proxy">proxy</a> :: <a href="Data-Tagged.html#t:Tagged">Tagged</a> s a -&gt; proxy s -&gt; a</li><li class="src short"><a href="#v:unproxy">unproxy</a> :: (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Proxy.html#t:Proxy">Proxy</a> s -&gt; a) -&gt; <a href="Data-Tagged.html#t:Tagged">Tagged</a> s a</li><li class="src short"><a href="#v:tagWith">tagWith</a> :: proxy s -&gt; a -&gt; <a href="Data-Tagged.html#t:Tagged">Tagged</a> s a</li><li class="src short"><a href="#v:reproxy">reproxy</a> :: proxy a -&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Proxy.html#t:Proxy">Proxy</a> b</li></ul></div><div id="interface"><h1 id="g:1">Tagged values</h1><div class="top"><p class="src"><span class="keyword">newtype</span> <a name="t:Tagged" class="def">Tagged</a> s b <a href="src/Data-Tagged.html#Tagged" class="link">Source</a></p><div class="doc"><p>A <code><code><a href="Data-Tagged.html#t:Tagged">Tagged</a></code> s b</code> value is a value <code>b</code> with an attached phantom type <code>s</code>.
 This can be used in place of the more traditional but less safe idiom of
 passing in an undefined value with the type, because unlike an <code>(s -&gt; b)</code>,
 a <code><code><a href="Data-Tagged.html#t:Tagged">Tagged</a></code> s b</code> can't try to use the argument <code>s</code> as a real value.</p><p>Moreover, you don't have to rely on the compiler to inline away the extra
 argument, because the newtype is &quot;free&quot;</p><p><code><a href="Data-Tagged.html#t:Tagged">Tagged</a></code> has kind <code>k -&gt; * -&gt; *</code> if the compiler supports <code>PolyKinds</code>, therefore
 there is an extra <code>k</code> showing in the instance haddocks that may cause confusion.</p></div><div class="subs constructors"><p class="caption">Constructors</p><table><tr><td class="src"><a name="v:Tagged" class="def">Tagged</a></td><td class="doc empty">&nbsp;</td></tr><tr><td colspan="2"><div class="subs fields"><p class="caption">Fields</p><dl><dt class="src"><a name="v:unTagged" class="def">unTagged</a> :: b</dt><dd class="doc empty">&nbsp;</dd></dl><div class="clear"></div></div></td></tr></table></div><div class="subs instances"><p id="control.i:Tagged" class="caption collapser" onclick="toggleSection('i:Tagged')">Instances</p><div id="section.i:Tagged" class="show"><table><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-Bifunctor.html#t:Bifunctor">Bifunctor</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> *)</span> <a href="src/Data-Tagged.html#line-150" class="link">Source</a></td><td class="doc empty">&nbsp;</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/Control-Monad.html#t:Monad">Monad</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s)</span> <a href="src/Data-Tagged.html#line-166" class="link">Source</a></td><td class="doc empty">&nbsp;</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-Functor.html#t:Functor">Functor</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s)</span> <a href="src/Data-Tagged.html#line-144" class="link">Source</a></td><td class="doc empty">&nbsp;</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/Control-Applicative.html#t:Applicative">Applicative</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s)</span> <a href="src/Data-Tagged.html#line-160" class="link">Source</a></td><td class="doc empty">&nbsp;</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-Foldable.html#t:Foldable">Foldable</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s)</span> <a href="src/Data-Tagged.html#line-174" class="link">Source</a></td><td class="doc empty">&nbsp;</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-Traversable.html#t:Traversable">Traversable</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s)</span> <a href="src/Data-Tagged.html#line-188" class="link">Source</a></td><td class="doc empty">&nbsp;</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/GHC-Generics.html#t:Generic1">Generic1</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s)</span> <a href="src/Data-Tagged.html#line-88" class="link">Source</a></td><td class="doc empty">&nbsp;</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/Prelude.html#t:Bounded">Bounded</a> b =&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Prelude.html#t:Bounded">Bounded</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s b)</span> <a href="src/Data-Tagged.html#line-84" class="link">Source</a></td><td class="doc empty">&nbsp;</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/Prelude.html#t:Enum">Enum</a> a =&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Prelude.html#t:Enum">Enum</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s a)</span> <a href="src/Data-Tagged.html#line-198" class="link">Source</a></td><td class="doc empty">&nbsp;</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> b =&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Eq.html#t:Eq">Eq</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s b)</span> <a href="src/Data-Tagged.html#line-84" class="link">Source</a></td><td class="doc empty">&nbsp;</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/Prelude.html#t:Floating">Floating</a> a =&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Prelude.html#t:Floating">Floating</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s a)</span> <a href="src/Data-Tagged.html#line-237" class="link">Source</a></td><td class="doc empty">&nbsp;</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/Prelude.html#t:Fractional">Fractional</a> a =&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Prelude.html#t:Fractional">Fractional</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s a)</span> <a href="src/Data-Tagged.html#line-232" class="link">Source</a></td><td class="doc empty">&nbsp;</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/Prelude.html#t:Integral">Integral</a> a =&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Prelude.html#t:Integral">Integral</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s a)</span> <a href="src/Data-Tagged.html#line-221" class="link">Source</a></td><td class="doc empty">&nbsp;</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-Data.html#t:Data">Data</a> s, <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Data.html#t:Data">Data</a> b) =&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Data.html#t:Data">Data</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> * s b)</span> <a href="src/Data-Tagged.html#line-112" class="link">Source</a></td><td class="doc empty">&nbsp;</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/Prelude.html#t:Num">Num</a> a =&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Prelude.html#t:Num">Num</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s a)</span> <a href="src/Data-Tagged.html#line-209" class="link">Source</a></td><td class="doc empty">&nbsp;</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-Ord.html#t:Ord">Ord</a> b =&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Ord.html#t:Ord">Ord</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s b)</span> <a href="src/Data-Tagged.html#line-84" class="link">Source</a></td><td class="doc empty">&nbsp;</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/Text-Read.html#t:Read">Read</a> b =&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Text-Read.html#t:Read">Read</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s b)</span> <a href="src/Data-Tagged.html#line-136" class="link">Source</a></td><td class="doc empty">&nbsp;</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/Prelude.html#t:Real">Real</a> a =&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Prelude.html#t:Real">Real</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s a)</span> <a href="src/Data-Tagged.html#line-218" class="link">Source</a></td><td class="doc empty">&nbsp;</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/Prelude.html#t:RealFloat">RealFloat</a> a =&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Prelude.html#t:RealFloat">RealFloat</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s a)</span> <a href="src/Data-Tagged.html#line-265" class="link">Source</a></td><td class="doc empty">&nbsp;</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/Prelude.html#t:RealFrac">RealFrac</a> a =&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Prelude.html#t:RealFrac">RealFrac</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s a)</span> <a href="src/Data-Tagged.html#line-257" class="link">Source</a></td><td class="doc empty">&nbsp;</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/Text-Show.html#t:Show">Show</a> b =&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Text-Show.html#t:Show">Show</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s b)</span> <a href="src/Data-Tagged.html#line-131" class="link">Source</a></td><td class="doc empty">&nbsp;</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-Ix.html#t:Ix">Ix</a> b =&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Ix.html#t:Ix">Ix</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s b)</span> <a href="src/Data-Tagged.html#line-84" class="link">Source</a></td><td class="doc empty">&nbsp;</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/GHC-Generics.html#t:Generic">Generic</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s b)</span> <a href="src/Data-Tagged.html#line-86" class="link">Source</a></td><td class="doc empty">&nbsp;</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-Monoid.html#t:Monoid">Monoid</a> a =&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Monoid.html#t:Monoid">Monoid</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s a)</span> <a href="src/Data-Tagged.html#line-140" class="link">Source</a></td><td class="doc empty">&nbsp;</td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="file:///usr/share/doc/ghc-doc/html/libraries/deepseq-1.4.1.1/Control-DeepSeq.html#t:NFData">NFData</a> b =&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/deepseq-1.4.1.1/Control-DeepSeq.html#t:NFData">NFData</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s b)</span> <a href="src/Data-Tagged.html#line-156" class="link">Source</a></td><td class="doc empty">&nbsp;</td></tr><tr><td class="src clearfix"><span class="inst-left"><span class="keyword">type</span> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Rep1">Rep1</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s)</span> <a href="src/Data-Tagged.html#line-83" class="link">Source</a></td><td class="doc empty">&nbsp;</td></tr><tr><td class="src clearfix"><span class="inst-left"><span class="keyword">type</span> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Rep">Rep</a> (<a href="Data-Tagged.html#t:Tagged">Tagged</a> k s b)</span> <a href="src/Data-Tagged.html#line-83" class="link">Source</a></td><td class="doc empty">&nbsp;</td></tr></table></div></div></div><div class="top"><p class="src"><a name="v:retag" class="def">retag</a> :: <a href="Data-Tagged.html#t:Tagged">Tagged</a> s b -&gt; <a href="Data-Tagged.html#t:Tagged">Tagged</a> t b <a href="src/Data-Tagged.html#retag" class="link">Source</a></p><div class="doc"><p>Some times you need to change the tag you have lying around.
 Idiomatic usage is to make a new combinator for the relationship between the
 tags that you want to enforce, and define that combinator using <code><a href="Data-Tagged.html#v:retag">retag</a></code>.</p><pre>data Succ n
retagSucc :: <code><a href="Data-Tagged.html#t:Tagged">Tagged</a></code> n a -&gt; <code><a href="Data-Tagged.html#t:Tagged">Tagged</a></code> (Succ n) a
retagSucc = <code><a href="Data-Tagged.html#v:retag">retag</a></code>
</pre></div></div><div class="top"><p class="src"><a name="v:untag" class="def">untag</a> :: <a href="Data-Tagged.html#t:Tagged">Tagged</a> s b -&gt; b <a href="src/Data-Tagged.html#untag" class="link">Source</a></p><div class="doc"><p>Alias for <code><a href="Data-Tagged.html#v:unTagged">unTagged</a></code></p></div></div><div class="top"><p class="src"><a name="v:tagSelf" class="def">tagSelf</a> :: a -&gt; <a href="Data-Tagged.html#t:Tagged">Tagged</a> a a <a href="src/Data-Tagged.html#tagSelf" class="link">Source</a></p><div class="doc"><p>Tag a value with its own type.</p></div></div><div class="top"><p class="src"><a name="v:untagSelf" class="def">untagSelf</a> :: <a href="Data-Tagged.html#t:Tagged">Tagged</a> a a -&gt; a <a href="src/Data-Tagged.html#untagSelf" class="link">Source</a></p><div class="doc"><p><code><a href="Data-Tagged.html#v:untagSelf">untagSelf</a></code> is a type-restricted version of <code><a href="Data-Tagged.html#v:untag">untag</a></code>.</p></div></div><div class="top"><p class="src"><a name="v:asTaggedTypeOf" class="def">asTaggedTypeOf</a> :: s -&gt; tagged s b -&gt; s <a href="src/Data-Tagged.html#asTaggedTypeOf" class="link">Source</a></p><div class="doc"><p><code><a href="Data-Tagged.html#v:asTaggedTypeOf">asTaggedTypeOf</a></code> is a type-restricted version of <code><a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Function.html#v:const">const</a></code>. It is usually used as an infix operator, and its typing forces its first argument (which is usually overloaded) to have the same type as the tag of the second.</p></div></div><div class="top"><p class="src"><a name="v:witness" class="def">witness</a> :: <a href="Data-Tagged.html#t:Tagged">Tagged</a> a b -&gt; a -&gt; b <a href="src/Data-Tagged.html#witness" class="link">Source</a></p></div><h1 id="g:2">Conversion</h1><div class="top"><p class="src"><a name="v:proxy" class="def">proxy</a> :: <a href="Data-Tagged.html#t:Tagged">Tagged</a> s a -&gt; proxy s -&gt; a <a href="src/Data-Tagged.html#proxy" class="link">Source</a></p><div class="doc"><p>Convert from a <code><a href="Data-Tagged.html#t:Tagged">Tagged</a></code> representation to a representation
 based on a <code><a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Proxy.html#t:Proxy">Proxy</a></code>.</p></div></div><div class="top"><p class="src"><a name="v:unproxy" class="def">unproxy</a> :: (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Proxy.html#t:Proxy">Proxy</a> s -&gt; a) -&gt; <a href="Data-Tagged.html#t:Tagged">Tagged</a> s a <a href="src/Data-Tagged.html#unproxy" class="link">Source</a></p><div class="doc"><p>Convert from a representation based on a <code><a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Proxy.html#t:Proxy">Proxy</a></code> to a <code><a href="Data-Tagged.html#t:Tagged">Tagged</a></code>
 representation.</p></div></div><div class="top"><p class="src"><a name="v:tagWith" class="def">tagWith</a> :: proxy s -&gt; a -&gt; <a href="Data-Tagged.html#t:Tagged">Tagged</a> s a <a href="src/Data-Tagged.html#tagWith" class="link">Source</a></p><div class="doc"><p>Another way to convert a proxy to a tag.</p></div></div><h1 id="g:3">Proxy methods GHC dropped</h1><div class="top"><p class="src"><a name="v:reproxy" class="def">reproxy</a> :: proxy a -&gt; <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Proxy.html#t:Proxy">Proxy</a> b <a href="src/Data-Tagged.html#reproxy" class="link">Source</a></p><div class="doc"><p>Some times you need to change the proxy you have lying around.
 Idiomatic usage is to make a new combinator for the relationship
 between the proxies that you want to enforce, and define that
 combinator using <code><a href="Data-Tagged.html#v:reproxy">reproxy</a></code>.</p><pre>data Succ n
reproxySucc :: proxy n -&gt; <code><a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/Data-Proxy.html#t:Proxy">Proxy</a></code> (Succ n)
reproxySucc = <code><a href="Data-Tagged.html#v:reproxy">reproxy</a></code>
</pre></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>