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<title>src/Darcs/Patch/Prim/V1/Core.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>-- Copyright (C) 2002-2003,2007 David Roundy</span>
<a name="line-2"></a><span class='hs-comment'>--</span>
<a name="line-3"></a><span class='hs-comment'>-- This program is free software; you can redistribute it and/or modify</span>
<a name="line-4"></a><span class='hs-comment'>-- it under the terms of the GNU General Public License as published by</span>
<a name="line-5"></a><span class='hs-comment'>-- the Free Software Foundation; either version 2, or (at your option)</span>
<a name="line-6"></a><span class='hs-comment'>-- any later version.</span>
<a name="line-7"></a><span class='hs-comment'>--</span>
<a name="line-8"></a><span class='hs-comment'>-- This program is distributed in the hope that it will be useful,</span>
<a name="line-9"></a><span class='hs-comment'>-- but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="line-10"></a><span class='hs-comment'>-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="line-11"></a><span class='hs-comment'>-- GNU General Public License for more details.</span>
<a name="line-12"></a><span class='hs-comment'>--</span>
<a name="line-13"></a><span class='hs-comment'>-- You should have received a copy of the GNU General Public License</span>
<a name="line-14"></a><span class='hs-comment'>-- along with this program; see the file COPYING. If not, write to</span>
<a name="line-15"></a><span class='hs-comment'>-- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="line-16"></a><span class='hs-comment'>-- Boston, MA 02110-1301, USA.</span>
<a name="line-17"></a>
<a name="line-18"></a><span class='hs-comment'>{-# LANGUAGE CPP #-}</span>
<a name="line-19"></a>
<a name="line-20"></a><span class='hs-cpp'>#include "gadts.h"</span>
<a name="line-21"></a>
<a name="line-22"></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'>V1</span><span class='hs-varop'>.</span><span class='hs-conid'>Core</span>
<a name="line-23"></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>
<a name="line-24"></a> <span class='hs-conid'>DirPatchType</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'>FilePatchType</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-25"></a> <span class='hs-varid'>isIdentity</span><span class='hs-layout'>,</span>
<a name="line-26"></a> <span class='hs-varid'>comparePrim</span><span class='hs-layout'>,</span>
<a name="line-27"></a> <span class='hs-layout'>)</span>
<a name="line-28"></a> <span class='hs-keyword'>where</span>
<a name="line-29"></a>
<a name="line-30"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Prelude</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span> <span class='hs-varid'>pi</span> <span class='hs-layout'>)</span>
<a name="line-31"></a>
<a name="line-32"></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> <span class='hs-layout'>(</span><span class='hs-conid'>ByteString</span><span class='hs-layout'>)</span>
<a name="line-33"></a>
<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'>FileName</span> <span class='hs-layout'>(</span> <span class='hs-conid'>FileName</span><span class='hs-layout'>,</span> <span class='hs-varid'>fn2fp</span><span class='hs-layout'>,</span> <span class='hs-varid'>fp2fn</span><span class='hs-layout'>,</span> <span class='hs-varid'>normPath</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'>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> <span class='hs-conid'>EqCheck</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'>Witnesses</span><span class='hs-varop'>.</span><span class='hs-conid'>Unsafe</span> <span class='hs-layout'>(</span> <span class='hs-varid'>unsafeCoerceP</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'>FileHunk</span> <span class='hs-layout'>(</span> <span class='hs-conid'>FileHunk</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'>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-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'>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-39"></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-40"></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'>Permutations</span> <span class='hs-conid'>()</span> <span class='hs-comment'>-- for Invert instance of FL</span>
<a name="line-41"></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-42"></a>
<a name="line-43"></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-44"></a> <span class='hs-conid'>Move</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>FileName</span> <span class='hs-keyglyph'>-></span> <span class='hs-varop'>!</span><span class='hs-conid'>FileName</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-45"></a> <span class='hs-conid'>DP</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>FileName</span> <span class='hs-keyglyph'>-></span> <span class='hs-varop'>!</span><span class='hs-layout'>(</span><span class='hs-conid'>DirPatchType</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-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-46"></a> <span class='hs-conid'>FP</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>FileName</span> <span class='hs-keyglyph'>-></span> <span class='hs-varop'>!</span><span class='hs-layout'>(</span><span class='hs-conid'>FilePatchType</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-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-47"></a> <span class='hs-conid'>ChangePref</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-varop'>!</span><span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-varop'>!</span><span class='hs-conid'>String</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-48"></a>
<a name="line-49"></a><a name="FilePatchType"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>FilePatchType</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'>RmFile</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>AddFile</span>
<a name="line-50"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Hunk</span> <span class='hs-varop'>!</span><span class='hs-conid'>Int</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span><span class='hs-keyglyph'>]</span>
<a name="line-51"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>TokReplace</span> <span class='hs-varop'>!</span><span class='hs-conid'>String</span> <span class='hs-varop'>!</span><span class='hs-conid'>String</span> <span class='hs-varop'>!</span><span class='hs-conid'>String</span>
<a name="line-52"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>Binary</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span> <span class='hs-conid'>B</span><span class='hs-varop'>.</span><span class='hs-conid'>ByteString</span>
<a name="line-53"></a> <span class='hs-keyword'>deriving</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>
<a name="line-54"></a>
<a name="line-55"></a><a name="DirPatchType"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>DirPatchType</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'>RmDir</span> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>AddDir</span>
<a name="line-56"></a> <span class='hs-keyword'>deriving</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>
<a name="line-57"></a>
<a name="line-58"></a><a name="instance%20MyEq%20FilePatchType"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>MyEq</span> <span class='hs-conid'>FilePatchType</span> <span class='hs-keyword'>where</span>
<a name="line-59"></a> <span class='hs-varid'>unsafeCompare</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>a</span> <span class='hs-varop'>==</span> <span class='hs-varid'>unsafeCoerceP</span> <span class='hs-varid'>b</span>
<a name="line-60"></a>
<a name="line-61"></a><a name="instance%20MyEq%20DirPatchType"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>MyEq</span> <span class='hs-conid'>DirPatchType</span> <span class='hs-keyword'>where</span>
<a name="line-62"></a> <span class='hs-varid'>unsafeCompare</span> <span class='hs-varid'>a</span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>a</span> <span class='hs-varop'>==</span> <span class='hs-varid'>unsafeCoerceP</span> <span class='hs-varid'>b</span>
<a name="line-63"></a>
<a name="line-64"></a><a name="isIdentity"></a><span class='hs-definition'>isIdentity</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-conid'>EqCheck</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-65"></a><span class='hs-definition'>isIdentity</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>Binary</span> <span class='hs-varid'>old</span> <span class='hs-varid'>new</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>old</span> <span class='hs-varop'>==</span> <span class='hs-varid'>new</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafeCoerceP</span> <span class='hs-conid'>IsEq</span>
<a name="line-66"></a><span class='hs-definition'>isIdentity</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>Hunk</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>old</span> <span class='hs-varid'>new</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>old</span> <span class='hs-varop'>==</span> <span class='hs-varid'>new</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafeCoerceP</span> <span class='hs-conid'>IsEq</span>
<a name="line-67"></a><span class='hs-definition'>isIdentity</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>TokReplace</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>old</span> <span class='hs-varid'>new</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>old</span> <span class='hs-varop'>==</span> <span class='hs-varid'>new</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafeCoerceP</span> <span class='hs-conid'>IsEq</span>
<a name="line-68"></a><span class='hs-definition'>isIdentity</span> <span class='hs-layout'>(</span><span class='hs-conid'>Move</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-varid'>old</span> <span class='hs-varop'>==</span> <span class='hs-varid'>new</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unsafeCoerceP</span> <span class='hs-conid'>IsEq</span>
<a name="line-69"></a><span class='hs-definition'>isIdentity</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>NotEq</span>
<a name="line-70"></a>
<a name="line-71"></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-72"></a> <span class='hs-varid'>primIsAddfile</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>AddFile</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-73"></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-74"></a>
<a name="line-75"></a> <span class='hs-varid'>primIsRmfile</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>RmFile</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-76"></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-77"></a>
<a name="line-78"></a> <span class='hs-varid'>primIsAdddir</span> <span class='hs-layout'>(</span><span class='hs-conid'>DP</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>AddDir</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-79"></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-80"></a>
<a name="line-81"></a> <span class='hs-varid'>primIsRmdir</span> <span class='hs-layout'>(</span><span class='hs-conid'>DP</span> <span class='hs-keyword'>_</span> <span class='hs-conid'>RmDir</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-82"></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-83"></a>
<a name="line-84"></a> <span class='hs-varid'>primIsMove</span> <span class='hs-layout'>(</span><span class='hs-conid'>Move</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</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>
<a name="line-87"></a> <span class='hs-varid'>primIsHunk</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>Hunk</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-88"></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-89"></a>
<a name="line-90"></a> <span class='hs-varid'>primIsTokReplace</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>TokReplace</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-91"></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-92"></a>
<a name="line-93"></a> <span class='hs-varid'>primIsBinary</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>Binary</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-94"></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-95"></a>
<a name="line-96"></a> <span class='hs-varid'>primIsSetpref</span> <span class='hs-layout'>(</span><span class='hs-conid'>ChangePref</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-97"></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-98"></a>
<a name="line-99"></a> <span class='hs-varid'>is_filepatch</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-varid'>f</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-varid'>f</span>
<a name="line-100"></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-101"></a>
<a name="line-102"></a><a name="evalargs"></a><span class='hs-definition'>evalargs</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>c</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>b</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>c</span>
<a name="line-103"></a><span class='hs-definition'>evalargs</span> <span class='hs-varid'>f</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>f</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>y</span>
<a name="line-104"></a>
<a name="line-105"></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-106"></a> <span class='hs-varid'>addfile</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FP</span> <span class='hs-layout'>(</span><span class='hs-varid'>fp2fn</span> <span class='hs-varop'>$</span> <span class='hs-varid'>nFn</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-conid'>AddFile</span>
<a name="line-107"></a> <span class='hs-varid'>rmfile</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FP</span> <span class='hs-layout'>(</span><span class='hs-varid'>fp2fn</span> <span class='hs-varop'>$</span> <span class='hs-varid'>nFn</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-conid'>RmFile</span>
<a name="line-108"></a> <span class='hs-varid'>adddir</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DP</span> <span class='hs-layout'>(</span><span class='hs-varid'>fp2fn</span> <span class='hs-varop'>$</span> <span class='hs-varid'>nFn</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <span class='hs-conid'>AddDir</span>
<a name="line-109"></a> <span class='hs-varid'>rmdir</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DP</span> <span class='hs-layout'>(</span><span class='hs-varid'>fp2fn</span> <span class='hs-varop'>$</span> <span class='hs-varid'>nFn</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <span class='hs-conid'>RmDir</span>
<a name="line-110"></a> <span class='hs-varid'>move</span> <span class='hs-varid'>f</span> <span class='hs-varid'>f'</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Move</span> <span class='hs-layout'>(</span><span class='hs-varid'>fp2fn</span> <span class='hs-varop'>$</span> <span class='hs-varid'>nFn</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fp2fn</span> <span class='hs-varop'>$</span> <span class='hs-varid'>nFn</span> <span class='hs-varid'>f'</span><span class='hs-layout'>)</span>
<a name="line-111"></a> <span class='hs-varid'>changepref</span> <span class='hs-varid'>p</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ChangePref</span> <span class='hs-varid'>p</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t</span>
<a name="line-112"></a> <span class='hs-varid'>hunk</span> <span class='hs-varid'>f</span> <span class='hs-varid'>line</span> <span class='hs-varid'>old</span> <span class='hs-varid'>new</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>evalargs</span> <span class='hs-conid'>FP</span> <span class='hs-layout'>(</span><span class='hs-varid'>fp2fn</span> <span class='hs-varop'>$</span> <span class='hs-varid'>nFn</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Hunk</span> <span class='hs-varid'>line</span> <span class='hs-varid'>old</span> <span class='hs-varid'>new</span><span class='hs-layout'>)</span>
<a name="line-113"></a> <span class='hs-varid'>tokreplace</span> <span class='hs-varid'>f</span> <span class='hs-varid'>tokchars</span> <span class='hs-varid'>old</span> <span class='hs-varid'>new</span> <span class='hs-keyglyph'>=</span>
<a name="line-114"></a> <span class='hs-varid'>evalargs</span> <span class='hs-conid'>FP</span> <span class='hs-layout'>(</span><span class='hs-varid'>fp2fn</span> <span class='hs-varop'>$</span> <span class='hs-varid'>nFn</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>TokReplace</span> <span class='hs-varid'>tokchars</span> <span class='hs-varid'>old</span> <span class='hs-varid'>new</span><span class='hs-layout'>)</span>
<a name="line-115"></a> <span class='hs-varid'>binary</span> <span class='hs-varid'>f</span> <span class='hs-varid'>old</span> <span class='hs-varid'>new</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FP</span> <span class='hs-layout'>(</span><span class='hs-varid'>fp2fn</span> <span class='hs-varop'>$!</span> <span class='hs-varid'>nFn</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Binary</span> <span class='hs-varid'>old</span> <span class='hs-varid'>new</span>
<a name="line-116"></a> <span class='hs-varid'>primFromHunk</span> <span class='hs-layout'>(</span><span class='hs-conid'>FileHunk</span> <span class='hs-varid'>fn</span> <span class='hs-varid'>line</span> <span class='hs-varid'>before</span> <span class='hs-varid'>after</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FP</span> <span class='hs-varid'>fn</span> <span class='hs-layout'>(</span><span class='hs-conid'>Hunk</span> <span class='hs-varid'>line</span> <span class='hs-varid'>before</span> <span class='hs-varid'>after</span><span class='hs-layout'>)</span>
<a name="line-117"></a> <span class='hs-varid'>anIdentity</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>let</span> <span class='hs-varid'>fp</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"./dummy"</span> <span class='hs-keyword'>in</span> <span class='hs-varid'>move</span> <span class='hs-varid'>fp</span> <span class='hs-varid'>fp</span>
<a name="line-118"></a>
<a name="line-119"></a><a name="nFn"></a><span class='hs-definition'>nFn</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FilePath</span>
<a name="line-120"></a><span class='hs-definition'>nFn</span> <span class='hs-varid'>f</span> <span class='hs-keyglyph'>=</span> <span class='hs-str'>"./"</span><span class='hs-varop'>++</span><span class='hs-layout'>(</span><span class='hs-varid'>fn2fp</span> <span class='hs-varop'>$</span> <span class='hs-varid'>normPath</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fp2fn</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span>
<a name="line-121"></a>
<a name="line-122"></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-123"></a> <span class='hs-varid'>isHunk</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-varid'>fn</span> <span class='hs-layout'>(</span><span class='hs-conid'>Hunk</span> <span class='hs-varid'>line</span> <span class='hs-varid'>before</span> <span class='hs-varid'>after</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>FileHunk</span> <span class='hs-varid'>fn</span> <span class='hs-varid'>line</span> <span class='hs-varid'>before</span> <span class='hs-varid'>after</span><span class='hs-layout'>)</span>
<a name="line-124"></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-125"></a>
<a name="line-126"></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-127"></a> <span class='hs-varid'>invert</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-varid'>f</span> <span class='hs-conid'>RmFile</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FP</span> <span class='hs-varid'>f</span> <span class='hs-conid'>AddFile</span>
<a name="line-128"></a> <span class='hs-varid'>invert</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-varid'>f</span> <span class='hs-conid'>AddFile</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FP</span> <span class='hs-varid'>f</span> <span class='hs-conid'>RmFile</span>
<a name="line-129"></a> <span class='hs-varid'>invert</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>Hunk</span> <span class='hs-varid'>line</span> <span class='hs-varid'>old</span> <span class='hs-varid'>new</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FP</span> <span class='hs-varid'>f</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Hunk</span> <span class='hs-varid'>line</span> <span class='hs-varid'>new</span> <span class='hs-varid'>old</span>
<a name="line-130"></a> <span class='hs-varid'>invert</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>TokReplace</span> <span class='hs-varid'>t</span> <span class='hs-varid'>o</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FP</span> <span class='hs-varid'>f</span> <span class='hs-varop'>$</span> <span class='hs-conid'>TokReplace</span> <span class='hs-varid'>t</span> <span class='hs-varid'>n</span> <span class='hs-varid'>o</span>
<a name="line-131"></a> <span class='hs-varid'>invert</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>Binary</span> <span class='hs-varid'>o</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>FP</span> <span class='hs-varid'>f</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Binary</span> <span class='hs-varid'>n</span> <span class='hs-varid'>o</span>
<a name="line-132"></a> <span class='hs-varid'>invert</span> <span class='hs-layout'>(</span><span class='hs-conid'>DP</span> <span class='hs-varid'>d</span> <span class='hs-conid'>RmDir</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DP</span> <span class='hs-varid'>d</span> <span class='hs-conid'>AddDir</span>
<a name="line-133"></a> <span class='hs-varid'>invert</span> <span class='hs-layout'>(</span><span class='hs-conid'>DP</span> <span class='hs-varid'>d</span> <span class='hs-conid'>AddDir</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>DP</span> <span class='hs-varid'>d</span> <span class='hs-conid'>RmDir</span>
<a name="line-134"></a> <span class='hs-varid'>invert</span> <span class='hs-layout'>(</span><span class='hs-conid'>Move</span> <span class='hs-varid'>f</span> <span class='hs-varid'>f'</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Move</span> <span class='hs-varid'>f'</span> <span class='hs-varid'>f</span>
<a name="line-135"></a> <span class='hs-varid'>invert</span> <span class='hs-layout'>(</span><span class='hs-conid'>ChangePref</span> <span class='hs-varid'>p</span> <span class='hs-varid'>f</span> <span class='hs-varid'>t</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ChangePref</span> <span class='hs-varid'>p</span> <span class='hs-varid'>t</span> <span class='hs-varid'>f</span>
<a name="line-136"></a>
<a name="line-137"></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-138"></a> <span class='hs-comment'>-- Recurse on everything, these are potentially spoofed patches</span>
<a name="line-139"></a> <span class='hs-varid'>listTouchedFiles</span> <span class='hs-layout'>(</span><span class='hs-conid'>Move</span> <span class='hs-varid'>f1</span> <span class='hs-varid'>f2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>fn2fp</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>f1</span><span class='hs-layout'>,</span> <span class='hs-varid'>f2</span><span class='hs-keyglyph'>]</span>
<a name="line-140"></a> <span class='hs-varid'>listTouchedFiles</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-varid'>f</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'>fn2fp</span> <span class='hs-varid'>f</span><span class='hs-keyglyph'>]</span>
<a name="line-141"></a> <span class='hs-varid'>listTouchedFiles</span> <span class='hs-layout'>(</span><span class='hs-conid'>DP</span> <span class='hs-varid'>d</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'>fn2fp</span> <span class='hs-varid'>d</span><span class='hs-keyglyph'>]</span>
<a name="line-142"></a> <span class='hs-varid'>listTouchedFiles</span> <span class='hs-layout'>(</span><span class='hs-conid'>ChangePref</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span>
<a name="line-143"></a>
<a name="line-144"></a> <span class='hs-varid'>hunkMatches</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>Hunk</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>remove</span> <span class='hs-varid'>add</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>anyMatches</span> <span class='hs-varid'>remove</span> <span class='hs-varop'>||</span> <span class='hs-varid'>anyMatches</span> <span class='hs-varid'>add</span>
<a name="line-145"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>anyMatches</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>foldr</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'>||</span><span class='hs-layout'>)</span> <span class='hs-varop'>.</span> <span class='hs-varid'>f</span><span class='hs-layout'>)</span> <span class='hs-conid'>False</span>
<a name="line-146"></a> <span class='hs-varid'>hunkMatches</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-147"></a> <span class='hs-varid'>hunkMatches</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>DP</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-148"></a> <span class='hs-varid'>hunkMatches</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>ChangePref</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-149"></a> <span class='hs-varid'>hunkMatches</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>Move</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-150"></a>
<a name="line-151"></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-152"></a> <span class='hs-varid'>unsafeCompare</span> <span class='hs-layout'>(</span><span class='hs-conid'>Move</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'>Move</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-153"></a> <span class='hs-varid'>unsafeCompare</span> <span class='hs-layout'>(</span><span class='hs-conid'>DP</span> <span class='hs-varid'>d1</span> <span class='hs-varid'>p1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>DP</span> <span class='hs-varid'>d2</span> <span class='hs-varid'>p2</span><span class='hs-layout'>)</span>
<a name="line-154"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>d1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>d2</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>p1</span> <span class='hs-varop'>`unsafeCompare`</span> <span class='hs-varid'>p2</span>
<a name="line-155"></a> <span class='hs-varid'>unsafeCompare</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-varid'>f1</span> <span class='hs-varid'>fp1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-varid'>f2</span> <span class='hs-varid'>fp2</span><span class='hs-layout'>)</span>
<a name="line-156"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>f2</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>fp1</span> <span class='hs-varop'>`unsafeCompare`</span> <span class='hs-varid'>fp2</span>
<a name="line-157"></a> <span class='hs-varid'>unsafeCompare</span> <span class='hs-layout'>(</span><span class='hs-conid'>ChangePref</span> <span class='hs-varid'>a1</span> <span class='hs-varid'>b1</span> <span class='hs-varid'>c1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>ChangePref</span> <span class='hs-varid'>a2</span> <span class='hs-varid'>b2</span> <span class='hs-varid'>c2</span><span class='hs-layout'>)</span>
<a name="line-158"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>c1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>c2</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>b1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>b2</span> <span class='hs-varop'>&&</span> <span class='hs-varid'>a1</span> <span class='hs-varop'>==</span> <span class='hs-varid'>a2</span>
<a name="line-159"></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-160"></a>
<a name="line-161"></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-162"></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>
<a name="line-163"></a>
<a name="line-164"></a><a name="comparePrim"></a><span class='hs-comment'>-- | 'comparePrim' @p1 p2@ is used to provide an arbitrary ordering between</span>
<a name="line-165"></a><span class='hs-comment'>-- @p1@ and @p2@. Basically, identical patches are equal and</span>
<a name="line-166"></a><span class='hs-comment'>-- @Move < DP < FP < ChangePref@.</span>
<a name="line-167"></a><span class='hs-comment'>-- Everything else is compared in dictionary order of its arguments.</span>
<a name="line-168"></a><span class='hs-definition'>comparePrim</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-conid'>Prim</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>w</span> <span class='hs-varid'>z</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Ordering</span>
<a name="line-169"></a><span class='hs-definition'>comparePrim</span> <span class='hs-layout'>(</span><span class='hs-conid'>Move</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'>Move</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'>compare</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-layout'>(</span><span class='hs-varid'>c</span><span class='hs-layout'>,</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span>
<a name="line-170"></a><span class='hs-definition'>comparePrim</span> <span class='hs-layout'>(</span><span class='hs-conid'>Move</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>LT</span>
<a name="line-171"></a><span class='hs-definition'>comparePrim</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>Move</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GT</span>
<a name="line-172"></a><span class='hs-definition'>comparePrim</span> <span class='hs-layout'>(</span><span class='hs-conid'>DP</span> <span class='hs-varid'>d1</span> <span class='hs-varid'>p1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>DP</span> <span class='hs-varid'>d2</span> <span class='hs-varid'>p2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>compare</span> <span class='hs-layout'>(</span><span class='hs-varid'>d1</span><span class='hs-layout'>,</span> <span class='hs-varid'>p1</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>unsafeCoerceP</span> <span class='hs-layout'>(</span><span class='hs-varid'>d2</span><span class='hs-layout'>,</span> <span class='hs-varid'>p2</span><span class='hs-layout'>)</span>
<a name="line-173"></a><span class='hs-definition'>comparePrim</span> <span class='hs-layout'>(</span><span class='hs-conid'>DP</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>LT</span>
<a name="line-174"></a><span class='hs-definition'>comparePrim</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>DP</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GT</span>
<a name="line-175"></a><span class='hs-definition'>comparePrim</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-varid'>f1</span> <span class='hs-varid'>fp1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-varid'>f2</span> <span class='hs-varid'>fp2</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>compare</span> <span class='hs-layout'>(</span><span class='hs-varid'>f1</span><span class='hs-layout'>,</span> <span class='hs-varid'>fp1</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>unsafeCoerceP</span> <span class='hs-layout'>(</span><span class='hs-varid'>f2</span><span class='hs-layout'>,</span> <span class='hs-varid'>fp2</span><span class='hs-layout'>)</span>
<a name="line-176"></a><span class='hs-definition'>comparePrim</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>LT</span>
<a name="line-177"></a><span class='hs-definition'>comparePrim</span> <span class='hs-keyword'>_</span> <span class='hs-layout'>(</span><span class='hs-conid'>FP</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>GT</span>
<a name="line-178"></a><span class='hs-definition'>comparePrim</span> <span class='hs-layout'>(</span><span class='hs-conid'>ChangePref</span> <span class='hs-varid'>a1</span> <span class='hs-varid'>b1</span> <span class='hs-varid'>c1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>ChangePref</span> <span class='hs-varid'>a2</span> <span class='hs-varid'>b2</span> <span class='hs-varid'>c2</span><span class='hs-layout'>)</span>
<a name="line-179"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>compare</span> <span class='hs-layout'>(</span><span class='hs-varid'>c1</span><span class='hs-layout'>,</span> <span class='hs-varid'>b1</span><span class='hs-layout'>,</span> <span class='hs-varid'>a1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>c2</span><span class='hs-layout'>,</span> <span class='hs-varid'>b2</span><span class='hs-layout'>,</span> <span class='hs-varid'>a2</span><span class='hs-layout'>)</span>
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