<?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/full/Agda/Syntax/Internal/Pattern.hs</title> <link type='text/css' rel='stylesheet' href='hscolour.css' /> </head> <body> <pre><a name="line-1"></a> <a name="line-2"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>Syntax</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span><span class='hs-varop'>.</span><span class='hs-conid'>Pattern</span> <span class='hs-keyword'>where</span> <a name="line-3"></a> <a name="line-4"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>Syntax</span><span class='hs-varop'>.</span><span class='hs-conid'>Common</span> <a name="line-5"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>Syntax</span><span class='hs-varop'>.</span><span class='hs-conid'>Internal</span> <a name="line-6"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Agda</span><span class='hs-varop'>.</span><span class='hs-conid'>Utils</span><span class='hs-varop'>.</span><span class='hs-conid'>Tuple</span> <a name="line-7"></a> <a name="line-8"></a><a name="OneHolePatterns"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>OneHolePatterns</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>OHPats</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Arg</span> <span class='hs-conid'>Pattern</span><span class='hs-keyglyph'>]</span> <span class='hs-layout'>(</span><span class='hs-conid'>Arg</span> <span class='hs-conid'>OneHolePattern</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Arg</span> <span class='hs-conid'>Pattern</span><span class='hs-keyglyph'>]</span> <a name="line-9"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Show</span><span class='hs-layout'>)</span> <a name="line-10"></a><a name="OneHolePattern"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>OneHolePattern</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Hole</span> <a name="line-11"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>OHCon</span> <span class='hs-conid'>QName</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Arg</span> <span class='hs-conid'>Type</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-conid'>OneHolePatterns</span> <a name="line-12"></a> <span class='hs-comment'>-- ^ The type serves the same role as the type</span> <a name="line-13"></a> <span class='hs-comment'>-- argument to 'ConP'.</span> <a name="line-14"></a> <span class='hs-comment'>--</span> <a name="line-15"></a> <span class='hs-comment'>-- TODO: If a hole is plugged this type may</span> <a name="line-16"></a> <span class='hs-comment'>-- have to be updated in some way.</span> <a name="line-17"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Show</span><span class='hs-layout'>)</span> <a name="line-18"></a> <a name="line-19"></a><a name="plugHole"></a><span class='hs-definition'>plugHole</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pattern</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>OneHolePatterns</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Arg</span> <span class='hs-conid'>Pattern</span><span class='hs-keyglyph'>]</span> <a name="line-20"></a><span class='hs-definition'>plugHole</span> <span class='hs-varid'>p</span> <span class='hs-layout'>(</span><span class='hs-conid'>OHPats</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>hole</span> <span class='hs-varid'>qs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>ps</span> <span class='hs-varop'>++</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>fmap</span> <span class='hs-layout'>(</span><span class='hs-varid'>plug</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-varid'>hole</span><span class='hs-keyglyph'>]</span> <span class='hs-varop'>++</span> <span class='hs-varid'>qs</span> <a name="line-21"></a> <span class='hs-keyword'>where</span> <a name="line-22"></a> <span class='hs-varid'>plug</span> <span class='hs-varid'>p</span> <span class='hs-conid'>Hole</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>p</span> <a name="line-23"></a> <span class='hs-varid'>plug</span> <span class='hs-varid'>p</span> <span class='hs-layout'>(</span><span class='hs-conid'>OHCon</span> <span class='hs-varid'>c</span> <span class='hs-varid'>mt</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ConP</span> <span class='hs-varid'>c</span> <span class='hs-varid'>mt</span> <span class='hs-varop'>$</span> <span class='hs-varid'>plugHole</span> <span class='hs-varid'>p</span> <span class='hs-varid'>h</span> <a name="line-24"></a> <a name="line-25"></a><a name="allHoles"></a><span class='hs-definition'>allHoles</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Arg</span> <span class='hs-conid'>Pattern</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>OneHolePatterns</span><span class='hs-keyglyph'>]</span> <a name="line-26"></a><span class='hs-definition'>allHoles</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>snd</span> <span class='hs-varop'>.</span> <span class='hs-varid'>allHolesWithContents</span> <a name="line-27"></a> <a name="line-28"></a><a name="allHolesWithContents"></a><span class='hs-definition'>allHolesWithContents</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Arg</span> <span class='hs-conid'>Pattern</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Pattern</span><span class='hs-layout'>,</span> <span class='hs-conid'>OneHolePatterns</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <a name="line-29"></a><span class='hs-definition'>allHolesWithContents</span> <span class='hs-conid'>[]</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span> <a name="line-30"></a><span class='hs-definition'>allHolesWithContents</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span> <span class='hs-conop'>:</span> <span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-varid'>left</span> <span class='hs-varid'>phs</span> <span class='hs-varop'>++</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>right</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>allHolesWithContents</span> <span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <a name="line-31"></a> <span class='hs-keyword'>where</span> <a name="line-32"></a> <span class='hs-varid'>phs</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Pattern</span><span class='hs-layout'>,</span> <span class='hs-conid'>Arg</span> <span class='hs-conid'>OneHolePattern</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <a name="line-33"></a> <span class='hs-varid'>phs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>id</span> <span class='hs-varop'>-*-</span> <span class='hs-conid'>Arg</span> <span class='hs-layout'>(</span><span class='hs-varid'>argHiding</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <span class='hs-conid'>Relevant</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>holes</span> <span class='hs-varop'>$</span> <span class='hs-varid'>unArg</span> <span class='hs-varid'>p</span><span class='hs-layout'>)</span> <a name="line-34"></a> <a name="line-35"></a> <span class='hs-varid'>holes</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pattern</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>Pattern</span><span class='hs-layout'>,</span> <span class='hs-conid'>OneHolePattern</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <a name="line-36"></a> <span class='hs-varid'>holes</span> <span class='hs-varid'>p</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>VarP</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hole</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <a name="line-37"></a> <span class='hs-varid'>holes</span> <span class='hs-varid'>p</span><span class='hs-keyglyph'>@</span><span class='hs-layout'>(</span><span class='hs-conid'>DotP</span> <span class='hs-keyword'>_</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-conid'>Hole</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <a name="line-38"></a> <span class='hs-varid'>holes</span> <span class='hs-layout'>(</span><span class='hs-conid'>ConP</span> <span class='hs-varid'>c</span> <span class='hs-varid'>mt</span> <span class='hs-varid'>qs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>id</span> <span class='hs-varop'>-*-</span> <span class='hs-conid'>OHCon</span> <span class='hs-varid'>c</span> <span class='hs-varid'>mt</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-varid'>allHolesWithContents</span> <span class='hs-varid'>qs</span> <a name="line-39"></a> <span class='hs-varid'>holes</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>[]</span> <a name="line-40"></a> <a name="line-41"></a> <span class='hs-varid'>left</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-varid'>ph</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-conid'>OHPats</span> <span class='hs-conid'>[]</span> <span class='hs-varid'>ph</span> <span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <a name="line-42"></a> <span class='hs-varid'>right</span> <span class='hs-varid'>q</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-conid'>OHPats</span> <span class='hs-varid'>ps</span> <span class='hs-varid'>h</span> <span class='hs-varid'>qs</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>p</span><span class='hs-layout'>,</span> <span class='hs-conid'>OHPats</span> <span class='hs-layout'>(</span><span class='hs-varid'>q</span> <span class='hs-conop'>:</span> <span class='hs-varid'>ps</span><span class='hs-layout'>)</span> <span class='hs-varid'>h</span> <span class='hs-varid'>qs</span><span class='hs-layout'>)</span> </pre></body> </html>
