Also, is there any real advantage to specifying as="element()" other
then readability/documentation?  You've recently discussed the
advantages of doing this for non-element data types (e.g. numeric
functions).  Are there similar advantages for element()?

Thanks,

~Chris

Christopher Scott
Loan Fulfillment Solutions
Fiserv


-----Original Message-----
From: Michael Kay [mailto:mike@xxxxxxxxxxxx]
Sent: Monday, March 02, 2009 10:52 AM
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: RE:  Push Processing

> Michael Kay wrote:
>
> > <xsl:function name="f:expand" as="element()">
> >   <xsl:param name="item" as="element(item)"/>
> >   <xsl:param name="child" as="element()?"/>
> >   <xsl:choose>
> >     <xsl:when test="exists($child)">
> >       <xsl:sequence select="$child"/>
> >     </xsl:when>
> >     <xsl:otherwise>
> >       <emptyCell/>
> >     </xsl:otherwise>
> >   </xsl:choose>
> > </xsl:function>
>
>   Just out of interest, why do you pass the $item param here?

Because I changed the design half way through.

Michael Kay
http://www.saxonica.com/