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<title>src/Darcs/Patch/Prim/V3/Core.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE CPP, OverloadedStrings #-}</span>
<a name="line-2"></a>
<a name="line-3"></a><span class='hs-comment'>-- Copyright (C) 2011 Petr Rockai</span>
<a name="line-4"></a><span class='hs-comment'>--</span>
<a name="line-5"></a><span class='hs-comment'>-- Permission is hereby granted, free of charge, to any person</span>
<a name="line-6"></a><span class='hs-comment'>-- obtaining a copy of this software and associated documentation</span>
<a name="line-7"></a><span class='hs-comment'>-- files (the "Software"), to deal in the Software without</span>
<a name="line-8"></a><span class='hs-comment'>-- restriction, including without limitation the rights to use, copy,</span>
<a name="line-9"></a><span class='hs-comment'>-- modify, merge, publish, distribute, sublicense, and/or sell copies</span>
<a name="line-10"></a><span class='hs-comment'>-- of the Software, and to permit persons to whom the Software is</span>
<a name="line-11"></a><span class='hs-comment'>-- furnished to do so, subject to the following conditions:</span>
<a name="line-12"></a><span class='hs-comment'>--</span>
<a name="line-13"></a><span class='hs-comment'>-- The above copyright notice and this permission notice shall be</span>
<a name="line-14"></a><span class='hs-comment'>-- included in all copies or substantial portions of the Software.</span>
<a name="line-15"></a><span class='hs-comment'>--</span>
<a name="line-16"></a><span class='hs-comment'>-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,</span>
<a name="line-17"></a><span class='hs-comment'>-- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF</span>
<a name="line-18"></a><span class='hs-comment'>-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND</span>
<a name="line-19"></a><span class='hs-comment'>-- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS</span>
<a name="line-20"></a><span class='hs-comment'>-- BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN</span>
<a name="line-21"></a><span class='hs-comment'>-- ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN</span>
<a name="line-22"></a><span class='hs-comment'>-- CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span>
<a name="line-23"></a><span class='hs-comment'>-- SOFTWARE.</span>
<a name="line-24"></a>
<a name="line-25"></a><span class='hs-cpp'>#include "gadts.h"</span>
<a name="line-26"></a>
<a name="line-27"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Prim</span><span class='hs-varop'>.</span><span class='hs-conid'>V3</span><span class='hs-varop'>.</span><span class='hs-conid'>Core</span>
<a name="line-28"></a> <span class='hs-layout'>(</span> <span class='hs-conid'>Prim</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hunk</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>UUID</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>Location</span><span class='hs-layout'>,</span> <span class='hs-conid'>Object</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>touches</span><span class='hs-layout'>,</span> <span class='hs-varid'>hunkEdit</span> <span class='hs-layout'>)</span>
<a name="line-29"></a> <span class='hs-keyword'>where</span>
<a name="line-30"></a>
<a name="line-31"></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'>BS</span>
<a name="line-32"></a>
<a name="line-33"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Witnesses</span><span class='hs-varop'>.</span><span class='hs-conid'>Eq</span> <span class='hs-layout'>(</span> <span class='hs-conid'>MyEq</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-34"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>FileHunk</span><span class='hs-layout'>(</span> <span class='hs-conid'>IsHunk</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-35"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Invert</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Invert</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-36"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Inspect</span> <span class='hs-layout'>(</span> <span class='hs-conid'>PatchInspect</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-37"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Prim</span><span class='hs-varop'>.</span><span class='hs-conid'>Class</span> <span class='hs-layout'>(</span> <span class='hs-conid'>PrimConstruct</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>PrimClassify</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span>
<a name="line-38"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Darcs</span><span class='hs-varop'>.</span><span class='hs-conid'>Patch</span><span class='hs-varop'>.</span><span class='hs-conid'>Prim</span><span class='hs-varop'>.</span><span class='hs-conid'>V3</span><span class='hs-varop'>.</span><span class='hs-conid'>ObjectMap</span>
<a name="line-39"></a>
<a name="line-40"></a><span class='hs-comment'>-- TODO: elaborate</span>
<a name="line-41"></a>
<a name="line-42"></a><a name="Hunk"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Hunk</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-43"></a> <span class='hs-conid'>Hunk</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Hunk</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-44"></a>
<a name="line-45"></a><a name="invertHunk"></a><span class='hs-definition'>invertHunk</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Hunk</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Hunk</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>y</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-46"></a><span class='hs-definition'>invertHunk</span> <span class='hs-layout'>(</span><span class='hs-conid'>Hunk</span> <span class='hs-varid'>off</span> <span class='hs-varid'>old</span> <span class='hs-varid'>new</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Hunk</span> <span class='hs-varid'>off</span> <span class='hs-varid'>new</span> <span class='hs-varid'>old</span>
<a name="line-47"></a>
<a name="line-48"></a><a name="hunkEdit"></a><span class='hs-definition'>hunkEdit</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Hunk</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-49"></a><span class='hs-definition'>hunkEdit</span> <span class='hs-layout'>(</span><span class='hs-conid'>Hunk</span> <span class='hs-varid'>off</span> <span class='hs-varid'>old</span> <span class='hs-varid'>new</span><span class='hs-layout'>)</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>splice</span> <span class='hs-varid'>bs</span> <span class='hs-layout'>(</span><span class='hs-varid'>off</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>off</span> <span class='hs-varop'>+</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>old</span><span class='hs-layout'>)</span> <span class='hs-keyword'>of</span>
<a name="line-50"></a> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-varid'>old</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>concat</span> <span class='hs-keyglyph'>[</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>take</span> <span class='hs-varid'>off</span> <span class='hs-varid'>bs</span><span class='hs-layout'>,</span> <span class='hs-varid'>new</span><span class='hs-layout'>,</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>drop</span> <span class='hs-layout'>(</span><span class='hs-varid'>off</span> <span class='hs-varop'>+</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>length</span> <span class='hs-varid'>old</span><span class='hs-layout'>)</span> <span class='hs-varid'>bs</span> <span class='hs-keyglyph'>]</span>
<a name="line-51"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>error</span> <span class='hs-varop'>$</span> <span class='hs-str'>"error applying hunk: "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>off</span> <span class='hs-varop'>++</span> <span class='hs-str'>" "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>old</span> <span class='hs-varop'>++</span> <span class='hs-str'>" "</span>
<a name="line-52"></a> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>new</span> <span class='hs-varop'>++</span> <span class='hs-str'>" to "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>bs</span>
<a name="line-53"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>splice</span> <span class='hs-varid'>bs'</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>drop</span> <span class='hs-varid'>x</span> <span class='hs-varop'>$</span> <span class='hs-conid'>BS</span><span class='hs-varop'>.</span><span class='hs-varid'>take</span> <span class='hs-varid'>y</span> <span class='hs-varid'>bs'</span>
<a name="line-54"></a>
<a name="line-55"></a><a name="instance%20MyEq%20Hunk"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>MyEq</span> <span class='hs-conid'>Hunk</span> <span class='hs-keyword'>where</span>
<a name="line-56"></a> <span class='hs-varid'>unsafeCompare</span> <span class='hs-layout'>(</span><span class='hs-conid'>Hunk</span> <span class='hs-varid'>i</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Hunk</span> <span class='hs-varid'>i'</span> <span class='hs-varid'>x'</span> <span class='hs-varid'>y'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>i</span> <span class='hs-varop'>==</span> <span class='hs-varid'>i'</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-varid'>x'</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>y</span> <span class='hs-varop'>==</span> <span class='hs-varid'>y'</span>
<a name="line-57"></a>
<a name="line-58"></a><a name="Prim"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Prim</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-59"></a> <span class='hs-conid'>BinaryHunk</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>UUID</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Hunk</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Prim</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-60"></a> <span class='hs-conid'>TextHunk</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>UUID</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Hunk</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Prim</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-61"></a>
<a name="line-62"></a> <span class='hs-comment'>-- TODO: String is not the right type here. However, what it represents is</span>
<a name="line-63"></a> <span class='hs-comment'>-- a single file *name* (not a path). No slashes allowed, no "." and ".."</span>
<a name="line-64"></a> <span class='hs-comment'>-- allowed either.</span>
<a name="line-65"></a> <span class='hs-conid'>Manifest</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>UUID</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Location</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Prim</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-66"></a> <span class='hs-conid'>Demanifest</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>UUID</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Location</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Prim</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-67"></a> <span class='hs-conid'>Move</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>UUID</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Location</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Location</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Prim</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span>
<a name="line-68"></a> <span class='hs-conid'>Identity</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prim</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span>
<a name="line-69"></a>
<a name="line-70"></a><a name="touches"></a><span class='hs-definition'>touches</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Prim</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>UUID</span><span class='hs-keyglyph'>]</span>
<a name="line-71"></a><span class='hs-definition'>touches</span> <span class='hs-layout'>(</span><span class='hs-conid'>BinaryHunk</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span>
<a name="line-72"></a><span class='hs-definition'>touches</span> <span class='hs-layout'>(</span><span class='hs-conid'>TextHunk</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span>
<a name="line-73"></a><span class='hs-definition'>touches</span> <span class='hs-layout'>(</span><span class='hs-conid'>Manifest</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span>
<a name="line-74"></a><span class='hs-definition'>touches</span> <span class='hs-layout'>(</span><span class='hs-conid'>Demanifest</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-keyglyph'>]</span>
<a name="line-75"></a><span class='hs-definition'>touches</span> <span class='hs-layout'>(</span><span class='hs-conid'>Move</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>y</span><span class='hs-layout'>,</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>x</span><span class='hs-layout'>,</span> <span class='hs-varid'>y</span><span class='hs-keyglyph'>]</span>
<a name="line-76"></a><span class='hs-definition'>touches</span> <span class='hs-conid'>Identity</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-77"></a>
<a name="line-78"></a><a name="instance%20PrimClassify%20Prim"></a><span class='hs-comment'>-- TODO: PrimClassify doesn't make sense for V3 prims</span>
<a name="line-79"></a><a name="instance%20PrimClassify%20Prim"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>PrimClassify</span> <span class='hs-conid'>Prim</span> <span class='hs-keyword'>where</span>
<a name="line-80"></a> <span class='hs-varid'>primIsAddfile</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-81"></a> <span class='hs-varid'>primIsRmfile</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-82"></a> <span class='hs-varid'>primIsAdddir</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-83"></a> <span class='hs-varid'>primIsRmdir</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-84"></a> <span class='hs-varid'>primIsHunk</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-85"></a> <span class='hs-varid'>primIsMove</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-86"></a> <span class='hs-varid'>primIsBinary</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-87"></a> <span class='hs-varid'>primIsTokReplace</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-88"></a> <span class='hs-varid'>primIsSetpref</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-89"></a> <span class='hs-varid'>is_filepatch</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-90"></a>
<a name="line-91"></a><a name="instance%20PrimConstruct%20Prim"></a><span class='hs-comment'>-- TODO: PrimConstruct makes no sense for V3 prims</span>
<a name="line-92"></a><a name="instance%20PrimConstruct%20Prim"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>PrimConstruct</span> <span class='hs-conid'>Prim</span> <span class='hs-keyword'>where</span>
<a name="line-93"></a> <span class='hs-varid'>addfile</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"PrimConstruct addfile"</span>
<a name="line-94"></a> <span class='hs-varid'>rmfile</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"PrimConstruct rmfile"</span>
<a name="line-95"></a> <span class='hs-varid'>adddir</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"PrimConstruct adddir"</span>
<a name="line-96"></a> <span class='hs-varid'>rmdir</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"PrimConstruct rmdir"</span>
<a name="line-97"></a> <span class='hs-varid'>move</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"PrimConstruct move"</span>
<a name="line-98"></a> <span class='hs-varid'>changepref</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"PrimConstruct changepref"</span>
<a name="line-99"></a> <span class='hs-varid'>hunk</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"PrimConstruct hunk"</span>
<a name="line-100"></a> <span class='hs-varid'>tokreplace</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"PrimConstruct tokreplace"</span>
<a name="line-101"></a> <span class='hs-varid'>binary</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"PrimConstruct binary"</span>
<a name="line-102"></a> <span class='hs-varid'>primFromHunk</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"PrimConstruct primFromHunk"</span>
<a name="line-103"></a> <span class='hs-varid'>anIdentity</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Identity</span>
<a name="line-104"></a>
<a name="line-105"></a><a name="instance%20IsHunk%20Prim"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>IsHunk</span> <span class='hs-conid'>Prim</span> <span class='hs-keyword'>where</span>
<a name="line-106"></a> <span class='hs-varid'>isHunk</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Nothing</span>
<a name="line-107"></a>
<a name="line-108"></a><a name="instance%20Invert%20Prim"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Invert</span> <span class='hs-conid'>Prim</span> <span class='hs-keyword'>where</span>
<a name="line-109"></a> <span class='hs-varid'>invert</span> <span class='hs-layout'>(</span><span class='hs-conid'>BinaryHunk</span> <span class='hs-varid'>x</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>BinaryHunk</span> <span class='hs-varid'>x</span> <span class='hs-varop'>$</span> <span class='hs-varid'>invertHunk</span> <span class='hs-varid'>h</span>
<a name="line-110"></a> <span class='hs-varid'>invert</span> <span class='hs-layout'>(</span><span class='hs-conid'>TextHunk</span> <span class='hs-varid'>x</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>TextHunk</span> <span class='hs-varid'>x</span> <span class='hs-varop'>$</span> <span class='hs-varid'>invertHunk</span> <span class='hs-varid'>h</span>
<a name="line-111"></a> <span class='hs-varid'>invert</span> <span class='hs-layout'>(</span><span class='hs-conid'>Manifest</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Demanifest</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-112"></a> <span class='hs-varid'>invert</span> <span class='hs-layout'>(</span><span class='hs-conid'>Demanifest</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Manifest</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span>
<a name="line-113"></a> <span class='hs-varid'>invert</span> <span class='hs-layout'>(</span><span class='hs-conid'>Move</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-varid'>z</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Move</span> <span class='hs-varid'>x</span> <span class='hs-varid'>z</span> <span class='hs-varid'>y</span>
<a name="line-114"></a> <span class='hs-varid'>invert</span> <span class='hs-conid'>Identity</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Identity</span>
<a name="line-115"></a>
<a name="line-116"></a><a name="instance%20PatchInspect%20Prim"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>PatchInspect</span> <span class='hs-conid'>Prim</span> <span class='hs-keyword'>where</span>
<a name="line-117"></a> <span class='hs-comment'>-- We don't need this for V3. Slashes are not allowed in Manifest and</span>
<a name="line-118"></a> <span class='hs-comment'>-- Demanifest patches and nothing else uses working-copy paths.</span>
<a name="line-119"></a> <span class='hs-varid'>listTouchedFiles</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-120"></a>
<a name="line-121"></a> <span class='hs-comment'>-- TODO (used for --match 'hunk ...', presumably)</span>
<a name="line-122"></a> <span class='hs-varid'>hunkMatches</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-123"></a>
<a name="line-124"></a><a name="instance%20MyEq%20Prim"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>MyEq</span> <span class='hs-conid'>Prim</span> <span class='hs-keyword'>where</span>
<a name="line-125"></a> <span class='hs-varid'>unsafeCompare</span> <span class='hs-layout'>(</span><span class='hs-conid'>BinaryHunk</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>BinaryHunk</span> <span class='hs-varid'>c</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>a</span> <span class='hs-varop'>==</span> <span class='hs-varid'>c</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>b</span> <span class='hs-varop'>`unsafeCompare`</span> <span class='hs-varid'>d</span>
<a name="line-126"></a> <span class='hs-varid'>unsafeCompare</span> <span class='hs-layout'>(</span><span class='hs-conid'>TextHunk</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>TextHunk</span> <span class='hs-varid'>c</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>a</span> <span class='hs-varop'>==</span> <span class='hs-varid'>c</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>b</span> <span class='hs-varop'>`unsafeCompare`</span> <span class='hs-varid'>d</span>
<a name="line-127"></a> <span class='hs-varid'>unsafeCompare</span> <span class='hs-layout'>(</span><span class='hs-conid'>Manifest</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Manifest</span> <span class='hs-varid'>c</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>a</span> <span class='hs-varop'>==</span> <span class='hs-varid'>c</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>b</span> <span class='hs-varop'>==</span> <span class='hs-varid'>d</span>
<a name="line-128"></a> <span class='hs-varid'>unsafeCompare</span> <span class='hs-layout'>(</span><span class='hs-conid'>Demanifest</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Demanifest</span> <span class='hs-varid'>c</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>a</span> <span class='hs-varop'>==</span> <span class='hs-varid'>c</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>b</span> <span class='hs-varop'>==</span> <span class='hs-varid'>d</span>
<a name="line-129"></a> <span class='hs-varid'>unsafeCompare</span> <span class='hs-conid'>Identity</span> <span class='hs-conid'>Identity</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-130"></a> <span class='hs-varid'>unsafeCompare</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-131"></a>
<a name="line-132"></a><a name="instance%20Eq%20(Prim%20C(x%20y))"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Eq</span> <span class='hs-layout'>(</span><span class='hs-conid'>Prim</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-133"></a> <span class='hs-layout'>(</span><span class='hs-varop'>==</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafeCompare</span>
</pre></body>
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