Details
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Bug
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Status: Resolved
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Major
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Resolution: Fixed
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2.7.1, 2.7
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None
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Linux, Sun java 1.6
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fp3
Description
If you do set:distinct over attribute list, XSLTC-compiled translet throws HIERARCHY_REQUEST_ERR exception.
Exception is localised to point where set:distinct is called, even if it is assigned into a variable.
Test case:
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:set="http://exslt.org/sets" version="1.0">
<xsl:output method="html" />
<xsl:template match="/">
<xsl:variable name="attrs" select="set:distinct(source/element/@attr)" />
<html><body>
<xsl:for-each select="$attrs">
<xsl:value-of select="." />
</xsl:for-each>
</body></html>
</xsl:template>
</xsl:stylesheet>
With xml
<source>
<element attr="val1" name="foobar" />
<element attr="val2" name="bar" />
<element attr="val2" name="baz" />
<element attr="val3" name="baz" />
</source>
that will cause an Exception to be thrown when variable is assigned.
My unedicated guess is that it tries to apply-templates over selected nodes into document in place where set:distinct is computed. This happens, as I see for different partially-serialized document, before variable's enclosing element is closed. I've disassembled the stylesheet but didn't understand much from there, it goes like this:
// 30 66:invokeinterface #110 <Method org.w3c.dom.NodeList DOM.makeNodeList(DTMAxisIterator)>
// 31 71:invokestatic #116 <Method org.w3c.dom.NodeList ExsltSets.distinct(org.w3c.dom.NodeList)>
// 32 74:aload_0
// 33 75:aload_1
// 34 76:invokestatic #122 <Method DTMAxisIterator BasisLibrary.nodeList2Iterator(org.w3c.dom.NodeList, org.apache.xalan.xsltc.Translet, DOM)>
// 35 79:new #126 <Class CachedNodeListIterator>
// 36 82:dup_x1
// 37 83:swap
// 38 84:invokespecial #127 <Method void CachedNodeListIterator(DTMAxisIterator)>
// 39 87:iload 4
// 40 89:invokeinterface #41 <Method DTMAxisIterator DTMAxisIterator.setStartNode(int)>
// 41 94:astore 9
// 42 96:aload_3
// 43 97:ldc1 #129 <String "html">
// 44 99:dup2
// 45 100:invokeinterface #14 <Method void SerializationHandler.startElement(String)>
P.S. If said variable is located in prologue (not inside any xsl:template) the bug persists.
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- Resolved
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