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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE DeriveDataTypeable #-}</span>
<a name="line-2"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Network</span><span class='hs-varop'>.</span><span class='hs-conid'>HTTP</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span><span class='hs-varop'>.</span><span class='hs-conid'>Method</span>
<a name="line-3"></a><span class='hs-layout'>(</span>
<a name="line-4"></a> <span class='hs-conid'>Method</span>
<a name="line-5"></a><span class='hs-layout'>,</span> <span class='hs-varid'>methodGet</span>
<a name="line-6"></a><span class='hs-layout'>,</span> <span class='hs-varid'>methodPost</span>
<a name="line-7"></a><span class='hs-layout'>,</span> <span class='hs-varid'>methodHead</span>
<a name="line-8"></a><span class='hs-layout'>,</span> <span class='hs-varid'>methodPut</span>
<a name="line-9"></a><span class='hs-layout'>,</span> <span class='hs-varid'>methodDelete</span>
<a name="line-10"></a><span class='hs-layout'>,</span> <span class='hs-varid'>methodTrace</span>
<a name="line-11"></a><span class='hs-layout'>,</span> <span class='hs-varid'>methodConnect</span>
<a name="line-12"></a><span class='hs-layout'>,</span> <span class='hs-varid'>methodOptions</span>
<a name="line-13"></a><span class='hs-layout'>,</span> <span class='hs-varid'>methodPatch</span>
<a name="line-14"></a><span class='hs-layout'>,</span> <span class='hs-conid'>StdMethod</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-15"></a><span class='hs-layout'>,</span> <span class='hs-varid'>parseMethod</span>
<a name="line-16"></a><span class='hs-layout'>,</span> <span class='hs-varid'>renderMethod</span>
<a name="line-17"></a><span class='hs-layout'>,</span> <span class='hs-varid'>renderStdMethod</span>
<a name="line-18"></a><span class='hs-layout'>)</span>
<a name="line-19"></a><span class='hs-keyword'>where</span>
<a name="line-20"></a>
<a name="line-21"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Arrow</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>|||</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-22"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Array</span>
<a name="line-23"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>B</span>
<a name="line-24"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-varop'>.</span><span class='hs-conid'>Char8</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>B8</span>
<a name="line-25"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Typeable</span>
<a name="line-26"></a>
<a name="line-27"></a><a name="Method"></a><span class='hs-comment'>-- | HTTP method (flat string type).</span>
<a name="line-28"></a><a name="Method"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>Method</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-29"></a>
<a name="line-30"></a><a name="methodGet"></a><span class='hs-comment'>-- | HTTP Method constants.</span>
<a name="line-31"></a><span class='hs-definition'>methodGet</span><span class='hs-layout'>,</span> <span class='hs-varid'>methodPost</span><span class='hs-layout'>,</span> <span class='hs-varid'>methodHead</span><span class='hs-layout'>,</span> <span class='hs-varid'>methodPut</span><span class='hs-layout'>,</span> <span class='hs-varid'>methodDelete</span><span class='hs-layout'>,</span> <span class='hs-varid'>methodTrace</span><span class='hs-layout'>,</span> <span class='hs-varid'>methodConnect</span><span class='hs-layout'>,</span> <span class='hs-varid'>methodOptions</span><span class='hs-layout'>,</span> <span class='hs-varid'>methodPatch</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Method</span>
<a name="line-32"></a><span class='hs-definition'>methodGet</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>renderStdMethod</span> <span class='hs-conid'>GET</span>
<a name="line-33"></a><a name="methodPost"></a><span class='hs-definition'>methodPost</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>renderStdMethod</span> <span class='hs-conid'>POST</span>
<a name="line-34"></a><a name="methodHead"></a><span class='hs-definition'>methodHead</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>renderStdMethod</span> <span class='hs-conid'>HEAD</span>
<a name="line-35"></a><a name="methodPut"></a><span class='hs-definition'>methodPut</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>renderStdMethod</span> <span class='hs-conid'>PUT</span>
<a name="line-36"></a><a name="methodDelete"></a><span class='hs-definition'>methodDelete</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>renderStdMethod</span> <span class='hs-conid'>DELETE</span>
<a name="line-37"></a><a name="methodTrace"></a><span class='hs-definition'>methodTrace</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>renderStdMethod</span> <span class='hs-conid'>TRACE</span>
<a name="line-38"></a><a name="methodConnect"></a><span class='hs-definition'>methodConnect</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>renderStdMethod</span> <span class='hs-conid'>CONNECT</span>
<a name="line-39"></a><a name="methodOptions"></a><span class='hs-definition'>methodOptions</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>renderStdMethod</span> <span class='hs-conid'>OPTIONS</span>
<a name="line-40"></a><a name="methodPatch"></a><span class='hs-definition'>methodPatch</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>renderStdMethod</span> <span class='hs-conid'>PATCH</span>
<a name="line-41"></a>
<a name="line-42"></a><a name="StdMethod"></a><span class='hs-comment'>-- | HTTP standard method (as defined by RFC 2616, and PATCH which is defined</span>
<a name="line-43"></a><a name="StdMethod"></a><span class='hs-comment'>-- by RFC 5789).</span>
<a name="line-44"></a><a name="StdMethod"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>StdMethod</span>
<a name="line-45"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GET</span>
<a name="line-46"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>POST</span>
<a name="line-47"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>HEAD</span>
<a name="line-48"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PUT</span>
<a name="line-49"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>DELETE</span>
<a name="line-50"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>TRACE</span>
<a name="line-51"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>CONNECT</span>
<a name="line-52"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>OPTIONS</span>
<a name="line-53"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PATCH</span>
<a name="line-54"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Read</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span><span class='hs-layout'>,</span> <span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Ord</span><span class='hs-layout'>,</span> <span class='hs-conid'>Enum</span><span class='hs-layout'>,</span> <span class='hs-conid'>Bounded</span><span class='hs-layout'>,</span> <span class='hs-conid'>Ix</span><span class='hs-layout'>,</span> <span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-55"></a><span class='hs-comment'>-- These are ordered by suspected frequency. More popular methods should go first.</span>
<a name="line-56"></a><span class='hs-comment'>-- The reason is that methodList is used with lookup.</span>
<a name="line-57"></a><span class='hs-comment'>-- lookup is probably faster for these few cases than setting up an elaborate data structure.</span>
<a name="line-58"></a>
<a name="line-59"></a><a name="methodArray"></a><span class='hs-definition'>methodArray</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Array</span> <span class='hs-conid'>StdMethod</span> <span class='hs-conid'>Method</span>
<a name="line-60"></a><span class='hs-definition'>methodArray</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>listArray</span> <span class='hs-layout'>(</span><span class='hs-varid'>minBound</span><span class='hs-layout'>,</span> <span class='hs-varid'>maxBound</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-conid'>B8</span><span class='hs-varop'>.</span><span class='hs-varid'>pack</span> <span class='hs-varop'>.</span> <span class='hs-varid'>show</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>minBound</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>StdMethod</span> <span class='hs-keyglyph'>..</span> <span class='hs-varid'>maxBound</span><span class='hs-keyglyph'>]</span>
<a name="line-61"></a>
<a name="line-62"></a><a name="methodList"></a><span class='hs-definition'>methodList</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Method</span><span class='hs-layout'>,</span> <span class='hs-conid'>StdMethod</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span>
<a name="line-63"></a><span class='hs-definition'>methodList</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>b</span><span class='hs-layout'>,</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>assocs</span> <span class='hs-varid'>methodArray</span><span class='hs-layout'>)</span>
<a name="line-64"></a>
<a name="line-65"></a><a name="parseMethod"></a><span class='hs-comment'>-- | Convert a method 'ByteString' to a 'StdMethod' if possible.</span>
<a name="line-66"></a><span class='hs-definition'>parseMethod</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Method</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Either</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-conid'>StdMethod</span>
<a name="line-67"></a><span class='hs-definition'>parseMethod</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Left</span> <span class='hs-varid'>bs</span><span class='hs-layout'>)</span> <span class='hs-conid'>Right</span> <span class='hs-varop'>$</span> <span class='hs-varid'>lookup</span> <span class='hs-varid'>bs</span> <span class='hs-varid'>methodList</span>
<a name="line-68"></a>
<a name="line-69"></a><a name="renderMethod"></a><span class='hs-comment'>-- | Convert an algebraic method to a 'ByteString'.</span>
<a name="line-70"></a><span class='hs-definition'>renderMethod</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Either</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-conid'>StdMethod</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Method</span>
<a name="line-71"></a><span class='hs-definition'>renderMethod</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>id</span> <span class='hs-varop'>|||</span> <span class='hs-varid'>renderStdMethod</span>
<a name="line-72"></a>
<a name="line-73"></a><a name="renderStdMethod"></a><span class='hs-comment'>-- | Convert a 'StdMethod' to a 'ByteString'.</span>
<a name="line-74"></a><span class='hs-definition'>renderStdMethod</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>StdMethod</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Method</span>
<a name="line-75"></a><span class='hs-definition'>renderStdMethod</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>methodArray</span> <span class='hs-varop'>!</span> <span class='hs-varid'>m</span>
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