Should <xsl:apply-templates select="@* , node()"/> be streamable?

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Should <xsl:apply-templates select="@* , node()"/> be streamable?

Martin Honnen-2

I have a question on the streamability assessment I get with Saxon EE for <xsl:apply-templates select="@* , node()"/>.

I have the stylesheet

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
        exclude-result-prefixes="xs math"
        <xsl:mode streamable="yes" on-no-match="shallow-copy"/>
        <xsl:template match="item">
                <item processed="true">
                        <xsl:apply-templates select="@* , node()"/>

and Saxon rejects that as not streamable, however with the explication

Description:   * There is more than one potentially consuming operand:
{@attribute()} and {( element() | text() | comment() |
processing-instruction() )}, both on line 12

Is @* a consuming operand? Is there some rewrite of "node()" to
"element() | text() | comment() | processing-instruction()" that then
causes the problem? Should <xsl:apply-templates select="@* , node()"/>
be streamable?

Exselt runs the stylesheet fine and outputs the analysis
[Streaming]  12,  5: xsl:apply-templates is Motionless and Grounded

Saxon compiles and runs the XSLT fine when I change the single
apply-templates to

                        <xsl:apply-templates select="@*"/>
                        <xsl:apply-templates select="node()"/>

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