[XALANC-544] Assert failure, then crash, during "variable undefined" error recovery in certain circumstances.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.9
• Fix Version/s: CurrentCVS
• Component/s: XalanC
• Environment: win2k on ix86
• Assignee: David N Bertoni
• Reporter: Alain Le Guennec
• Created: 16/Aug/05 23:42
• Updated: 18/Aug/05 10:08
• Resolved: 18/Aug/05 10:08

Description

Consirer the following stylesheet (the actual input document does not matter):

<?xml version="1.0" encoding = "ISO-8859-1"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:exsl="http://exslt.org/common">
<xsl:template match="/">
<xsl:call-template name="T1">
<xsl:with-param name="arg1" select="."/>
<xsl:with-param name="arg2" select="$foobar"/><!-- not defined -->
</xsl:call-template>
</xsl:template>

<xsl:template name="T1">
<xsl:param name="arg1" select="."/>
<xsl:param name="arg2"/>
</xsl:template>
</xsl:stylesheet>

If you run Xalan with this stylesheet in Debug mode, you get the following message:
Assertion failed: m_referenceCount == 0, file xalan-1-9-0\src\xalanc\PlatformSupport\XalanReferenceCountedObject.cpp, line 43
In Release mode, Xalan just crashes.
Note that if you remove the first "xsl:with-param" element, then Xalan correctly prints the expected error:
XSLT Error: The variable 'foobar' is not defined.Source tree node: #document. (file://stylesheet.xslt, line 5, column 50.)
Apparently, this is a regression w.r.t. Xalan 1.8.
Best regards,
Alain Le Guennec