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(:
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This XQuery loads a GCC-XML file and reports the locations of all
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global variables in the original C++ source. To run the query,
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use the command line:
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xmlpatterns reportGlobals.xq -param fileToOpen=globals.gccxml -output globals.html
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"fileToOpen=globals.gccxml" binds the file name "globals.gccxml"
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to the variable "fileToOpen" declared and used below.
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:)
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declare variable $fileToOpen as xs:anyURI external;
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declare variable $inDoc as document-node() := doc($fileToOpen);
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(:
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This function determines whether the typeId is a complex type,
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e.g. QString. We only check whether it's a class. To be strictly
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correct, we should check whether the class has a non-synthesized
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constructor. We accept both mutable and const types.
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:)
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declare function local:isComplexType($typeID as xs:string) as xs:boolean
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{
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exists($inDoc/GCC_XML/Class[@id = $typeID])
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or
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exists($inDoc/GCC_XML/Class[@id = $inDoc/GCC_XML/CvQualifiedType[@id = $typeID]/@type])
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};
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(:
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This function determines whether the typeId is a primitive type.
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:)
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declare function local:isPrimitive($typeId as xs:string) as xs:boolean
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{
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exists($inDoc/GCC_XML/FundamentalType[@id = $typeId])
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};
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(:
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This function constructs a line for the report. The line contains
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a variable name, the source file, and the line number.
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:)
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declare function local:location($block as element()) as xs:string
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{
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concat($inDoc/GCC_XML/File[@id = $block/@file]/@name, " at line ", $block/@line)
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};
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(:
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This function generates the report. Note that it is called once
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in the <body> element of the <html> output.
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It ignores const variables of simple types but reports all others.
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:)
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declare function local:report() as element()+
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{
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let $complexVariables as element(Variable)* := $inDoc/GCC_XML/Variable[local:isComplexType(@type)]
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return if (exists($complexVariables))
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then (<p xmlns="http://www.w3.org/1999/xhtml/">Global variables with complex types:</p>,
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<ol xmlns="http://www.w3.org/1999/xhtml/">
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{
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(: For each Variable in $complexVariables... :)
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$complexVariables/<li><span class="variableName">{string(@name)}</span> in {local:location(.)}</li>
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}
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</ol>)
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else <p xmlns="http://www.w3.org/1999/xhtml/">No complex global variables found.</p>
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,
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let $primitiveVariables as element(Variable)+ := $inDoc/GCC_XML/Variable[local:isPrimitive(@type)]
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return if (exists($primitiveVariables))
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then (<p xmlns="http://www.w3.org/1999/xhtml/">Mutable global variables with primitives types:</p>,
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<ol xmlns="http://www.w3.org/1999/xhtml/">
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{
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(: For each Variable in $complexVariables... :)
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$primitiveVariables/<li><span class="variableName">{string(@name)}</span> in {local:location(.)}</li>
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}
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</ol>)
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else <p xmlns="http://www.w3.org/1999/xhtml/">No mutable primitive global variables found.</p>
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};
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(:
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This is where the <html> report is output. First
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there is some style stuff, then the <body> element,
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which contains the call to the \c{local:report()}
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declared above.
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:)
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<html xmlns="http://www.w3.org/1999/xhtml/" xml:lang="en" lang="en">
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<head>
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<title>Global variables report for {$fileToOpen}</title>
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</head>
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<style type="text/css">
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.details
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{{
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text-align: left;
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font-size: 80%;
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color: blue
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}}
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.variableName
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{{
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font-family: courier;
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color: blue
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}}
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</style>
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<body>
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<p class="details">Start report: {current-dateTime()}</p>
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{
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local:report()
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}
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<p class="details">End report: {current-dateTime()}</p>
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</body>
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</html>
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