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Posted to dev@xalan.apache.org by "David Bertoni (JIRA)" <xa...@xml.apache.org> on 2006/12/06 00:41:22 UTC
[jira] Commented: (XALANC-625) Spurious (though harmless) assert
failure in XPath::findNodeSet() when an expression contains an empty
node-set enclosed in parenthesis
[ http://issues.apache.org/jira/browse/XALANC-625?page=comments#action_12455798 ]
David Bertoni commented on XALANC-625:
--------------------------------------
This assert actually uncovered what is a more serious error. In cases where executeMore() returns a non-null XObjectPtr, that value should be used, but the code in group() is actually ignoring it.
I'm attaching a stylesheet and source document that not only trip the assert, but also return an incorrect result.
A patch will follow.
> Spurious (though harmless) assert failure in XPath::findNodeSet() when an expression contains an empty node-set enclosed in parenthesis
> ---------------------------------------------------------------------------------------------------------------------------------------
>
> Key: XALANC-625
> URL: http://issues.apache.org/jira/browse/XALANC-625
> Project: XalanC
> Issue Type: Bug
> Components: XPathC
> Affects Versions: 1.10
> Environment: winxpsp2
> Reporter: Alain Le Guennec
> Priority: Minor
> Attachments: assertemptynodeset.xslt, nonemptynodeset.xml, nonemptynodeset.xsl
>
>
> There is a spurious (though apparently harmless) assert failure in XPath::findNodeSet() when compiled in Debug mode
> if an expression contains an empty node-set enclosed in parenthesis, as in the following stylesheet:
> <?xml version="1.0" encoding = "ISO-8859-1"?>
> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
> <xsl:template match="/">
> <xsl:variable name="empty-nodeset" select="/.."/>
> <xsl:variable name="foo" select="($empty-nodeset)/@bar"/>
> <xsl:value-of select="count($foo)"/>
> </xsl:template>
> </xsl:stylesheet>
> Best regards,
> Alain Le Guennec.
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