<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html> <head> <!-- Generated by HsColour, http://code.haskell.org/~malcolm/hscolour/ --> <title>src/Darcs/Patch/V1/Core.hs</title> <link type='text/css' rel='stylesheet' href='hscolour.css' /> </head> <body> <pre><a name="line-1"></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'>V1</span><span class='hs-varop'>.</span><span class='hs-conid'>Core</span> <a name="line-2"></a> <span class='hs-layout'>(</span> <span class='hs-conid'>Patch</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <a name="line-3"></a> <span class='hs-varid'>isMerger</span><span class='hs-layout'>,</span> <span class='hs-varid'>mergerUndo</span> <a name="line-4"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span> <a name="line-5"></a> <a name="line-6"></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'>Format</span> <span class='hs-layout'>(</span> <span class='hs-conid'>PatchListFormat</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'>ListFormat</span><span class='hs-layout'>(</span><span class='hs-conid'>ListFormatV1</span><span class='hs-layout'>)</span> <span class='hs-layout'>)</span> <a name="line-7"></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-layout'>(</span> <span class='hs-conid'>FromPrim</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'>PrimOf</span><span class='hs-layout'>,</span> <span class='hs-conid'>PrimPatchBase</span><span class='hs-layout'>,</span> <span class='hs-conid'>PrimPatch</span> <span class='hs-layout'>)</span> <a name="line-8"></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'>Repair</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Check</span> <span class='hs-layout'>)</span> <a name="line-9"></a> <a name="line-10"></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'>Ordered</span> <span class='hs-layout'>(</span> <span class='hs-conid'>FL</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'>RL</span> <span class='hs-layout'>)</span> <a name="line-11"></a> <a name="line-12"></a><span class='hs-cpp'>#include "gadts.h"</span> <a name="line-13"></a><span class='hs-cpp'>#include "impossible.h"</span> <a name="line-14"></a> <a name="line-15"></a><a name="PrimPatchBase"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Patch</span> <span class='hs-varid'>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-16"></a> <span class='hs-conid'>PP</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>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'>Patch</span> <span class='hs-varid'>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-17"></a> <span class='hs-conid'>Merger</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patch</span> <span class='hs-varid'>prim</span><span class='hs-layout'>)</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-18"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patch</span> <span class='hs-varid'>prim</span><span class='hs-layout'>)</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <a name="line-19"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Patch</span> <span class='hs-varid'>prim</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>c</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <a name="line-20"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Patch</span> <span class='hs-varid'>prim</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>c</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <a name="line-21"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Patch</span> <span class='hs-varid'>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-22"></a> <span class='hs-conid'>Regrem</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patch</span> <span class='hs-varid'>prim</span><span class='hs-layout'>)</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-23"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>RL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patch</span> <span class='hs-varid'>prim</span><span class='hs-layout'>)</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <a name="line-24"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Patch</span> <span class='hs-varid'>prim</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>c</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <a name="line-25"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Patch</span> <span class='hs-varid'>prim</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>c</span> <span class='hs-varid'>a</span><span class='hs-layout'>)</span> <a name="line-26"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Patch</span> <span class='hs-varid'>prim</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-27"></a> <a name="line-28"></a><a name="instance%20PrimPatchBase%20(Patch%20prim)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>PrimPatch</span> <span class='hs-varid'>prim</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>PrimPatchBase</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patch</span> <span class='hs-varid'>prim</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span> <a name="line-29"></a> <span class='hs-keyword'>type</span> <span class='hs-conid'>PrimOf</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patch</span> <span class='hs-varid'>prim</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>prim</span> <a name="line-30"></a> <a name="line-31"></a><a name="instance%20FromPrim%20(Patch%20prim)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>FromPrim</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patch</span> <span class='hs-varid'>prim</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span> <a name="line-32"></a> <span class='hs-varid'>fromPrim</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PP</span> <a name="line-33"></a> <a name="line-34"></a><a name="isMerger"></a><span class='hs-definition'>isMerger</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Patch</span> <span class='hs-varid'>prim</span> <span class='hs-conid'>C</span><span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span> <a name="line-35"></a><span class='hs-definition'>isMerger</span> <span class='hs-layout'>(</span><span class='hs-conid'>Merger</span> <span class='hs-keyword'>_</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-36"></a><span class='hs-definition'>isMerger</span> <span class='hs-layout'>(</span><span class='hs-conid'>Regrem</span> <span class='hs-keyword'>_</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-37"></a><span class='hs-definition'>isMerger</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span> <a name="line-38"></a> <a name="line-39"></a><a name="mergerUndo"></a><span class='hs-definition'>mergerUndo</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Patch</span> <span class='hs-varid'>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'>FL</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patch</span> <span class='hs-varid'>prim</span><span class='hs-layout'>)</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-40"></a><span class='hs-definition'>mergerUndo</span> <span class='hs-layout'>(</span><span class='hs-conid'>Merger</span> <span class='hs-varid'>undo</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-varid'>undo</span> <a name="line-41"></a><span class='hs-definition'>mergerUndo</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>impossible</span> <a name="line-42"></a> <a name="line-43"></a><a name="instance%20PatchListFormat%20(Patch%20prim)"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>PatchListFormat</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patch</span> <span class='hs-varid'>prim</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span> <a name="line-44"></a> <span class='hs-comment'>-- In principle we could use ListFormatDefault when prim /= V1 Prim patches,</span> <a name="line-45"></a> <span class='hs-comment'>-- as those are the only case where we need to support a legacy on-disk</span> <a name="line-46"></a> <span class='hs-comment'>-- format. In practice we don't expect Patch to be used with any other argument</span> <a name="line-47"></a> <span class='hs-comment'>-- anyway, so it doesn't matter.</span> <a name="line-48"></a> <span class='hs-varid'>patchListFormat</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ListFormatV1</span> <a name="line-49"></a> <a name="line-50"></a><a name="instance%20Check%20(Patch%20prim)%20--%20no%20checks"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Check</span> <span class='hs-layout'>(</span><span class='hs-conid'>Patch</span> <span class='hs-varid'>prim</span><span class='hs-layout'>)</span> <a name="line-51"></a> <span class='hs-comment'>-- no checks</span> </pre></body> </html>
