<?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://www.cs.york.ac.uk/fp/darcs/hscolour/ --> <title>src/HSE/NameMatch.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'>HSE</span><span class='hs-varop'>.</span><span class='hs-conid'>NameMatch</span><span class='hs-layout'>(</span><span class='hs-conid'>NameMatch</span><span class='hs-layout'>,</span> <span class='hs-varid'>nameMatch</span><span class='hs-layout'>)</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'>HSE</span><span class='hs-varop'>.</span><span class='hs-conid'>Type</span> <a name="line-5"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>HSE</span><span class='hs-varop'>.</span><span class='hs-conid'>Util</span> <a name="line-6"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>HSE</span><span class='hs-varop'>.</span><span class='hs-conid'>Match</span> <a name="line-7"></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'>Map</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Map</span> <a name="line-8"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Util</span> <a name="line-9"></a> <a name="line-10"></a> <a name="line-11"></a><a name="NameMatch"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>NameMatch</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>QName</span> <span class='hs-conid'>S</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>QName</span> <span class='hs-conid'>S</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span> <a name="line-12"></a> <a name="line-13"></a> <a name="line-14"></a><a name="nameMatch"></a><span class='hs-comment'>-- Given a list of import statements, are the names equal</span> <a name="line-15"></a><span class='hs-comment'>-- The import statements are only in scope on the second name</span> <a name="line-16"></a><span class='hs-comment'>--</span> <a name="line-17"></a><span class='hs-comment'>-- If the left is unqualified, then the right is dequalified and checked for match</span> <a name="line-18"></a><span class='hs-comment'>-- If the left is qualified, then the right is wrapped and name resolved</span> <a name="line-19"></a><span class='hs-definition'>nameMatch</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>ImportDecl</span> <span class='hs-conid'>S</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>NameMatch</span> <a name="line-20"></a><span class='hs-definition'>nameMatch</span> <span class='hs-varid'>imps</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>f</span> <a name="line-21"></a> <span class='hs-keyword'>where</span> <a name="line-22"></a> <span class='hs-comment'>-- deal with "as" imports</span> <a name="line-23"></a> <span class='hs-varid'>resolve</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ModuleName</span> <span class='hs-conid'>S</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ModuleName</span> <span class='hs-conid'>S</span> <a name="line-24"></a> <span class='hs-varid'>resolve</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>x</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>findWithDefault</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromNamed</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varid'>mp</span> <a name="line-25"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>mp</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>fromList</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>fromNamed</span> <span class='hs-keyword'>as</span><span class='hs-layout'>,</span> <span class='hs-varid'>importModule</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>imps</span><span class='hs-layout'>,</span> <span class='hs-conid'>Just</span> <span class='hs-keyword'>as</span> <span class='hs-keyglyph'><-</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>importAs</span> <span class='hs-varid'>i</span><span class='hs-keyglyph'>]</span><span class='hs-keyglyph'>]</span> <a name="line-26"></a> <a name="line-27"></a> <span class='hs-comment'>-- return True if x is potentially imported by B</span> <a name="line-28"></a> <span class='hs-varid'>importedFrom</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ModuleName</span> <span class='hs-conid'>S</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Name</span> <span class='hs-conid'>S</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span> <a name="line-29"></a> <span class='hs-varid'>importedFrom</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>modu</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>-></span> <a name="line-30"></a> <span class='hs-varid'>any</span> <span class='hs-layout'>(</span><span class='hs-varid'>g</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>findWithDefault</span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>True</span><span class='hs-layout'>,</span><span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>fromNamed</span> <span class='hs-varid'>modu</span> <span class='hs-varop'>==</span> <span class='hs-str'>"Prelude"</span><span class='hs-keyglyph'>]</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromNamed</span> <span class='hs-varid'>modu</span><span class='hs-layout'>)</span> <span class='hs-varid'>mp</span> <a name="line-31"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>mp</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Map</span><span class='hs-varop'>.</span><span class='hs-varid'>fromList</span> <span class='hs-varop'>$</span> <span class='hs-varid'>groupSortFst</span> <a name="line-32"></a> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-varid'>fromNamed</span> <span class='hs-varop'>$</span> <span class='hs-varid'>importModule</span> <span class='hs-varid'>i</span><span class='hs-layout'>,</span> <span class='hs-varid'>importSpecNames</span> <span class='hs-varid'>i</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>i</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>imps</span><span class='hs-layout'>,</span> <span class='hs-varid'>not</span> <span class='hs-varop'>$</span> <span class='hs-varid'>importQualified</span> <span class='hs-varid'>i</span><span class='hs-keyglyph'>]</span> <a name="line-33"></a> <a name="line-34"></a> <span class='hs-varid'>g</span> <span class='hs-varid'>x</span> <span class='hs-layout'>(</span><span class='hs-varid'>hide</span><span class='hs-layout'>,</span><span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>hide</span> <span class='hs-varop'>/=</span> <span class='hs-layout'>(</span><span class='hs-varid'>x</span> <span class='hs-varop'>`elem_`</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <a name="line-35"></a> <a name="line-36"></a> <a name="line-37"></a> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>Qual</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>xm</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Qual</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ym</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</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'>xm</span> <span class='hs-varop'>=~=</span> <span class='hs-varid'>resolve</span> <span class='hs-varid'>ym</span> <a name="line-38"></a> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>Qual</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>xm</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnQual</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</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'>importedFrom</span> <span class='hs-varid'>xm</span> <span class='hs-varid'>x</span> <a name="line-39"></a> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>UnQual</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Qual</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>ym</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span> <span class='hs-varop'>=~=</span> <span class='hs-varid'>y</span> <a name="line-40"></a> <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-varid'>x</span> <span class='hs-varop'>=~=</span> <span class='hs-varid'>y</span> <a name="line-41"></a> <a name="line-42"></a> <a name="line-43"></a><a name="importSpecNames"></a><span class='hs-definition'>importSpecNames</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ImportDecl</span> <span class='hs-conid'>S</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>Bool</span><span class='hs-layout'>,</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Name</span> <span class='hs-conid'>S</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span> <a name="line-44"></a><span class='hs-definition'>importSpecNames</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>importSpecs</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>of</span> <a name="line-45"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>True</span><span class='hs-layout'>,</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span> <a name="line-46"></a> <span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-conid'>ImportSpecList</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>b</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>b</span><span class='hs-layout'>,</span> <span class='hs-varid'>concatMap</span> <span class='hs-varid'>f</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <a name="line-47"></a> <span class='hs-keyword'>where</span> <a name="line-48"></a> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>IVar</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>x</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-49"></a> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>IAbs</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>x</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-50"></a> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>IThingAll</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>x</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-51"></a> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-conid'>IThingWith</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>x</span> <span class='hs-varid'>ys</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span> <span class='hs-conop'>:</span> <span class='hs-varid'>map</span> <span class='hs-varid'>g</span> <span class='hs-varid'>ys</span> <a name="line-52"></a> <span class='hs-varid'>g</span> <span class='hs-layout'>(</span><span class='hs-conid'>VarName</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span> <a name="line-53"></a> <span class='hs-varid'>g</span> <span class='hs-layout'>(</span><span class='hs-conid'>ConName</span> <span class='hs-keyword'>_</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span> <a name="line-54"></a> </pre></body> </html>
