[xsl] Re: Benefits of xsl.sequence

["Vladimir Nesterovsky" <vladimir@xxxxxxxxxxxxxxxxxxxx>]

> > Whenever you think of xsl:function (or xsl:sequence) as source of
> > intermediate result,
> > that you won't output in the tree immediately, you notice that 
> > xsl:sequence
> > is more efficient:
> >
> > <xsl:function name="t:add" as="xs:integer">
> >  <xsl:param name="first" as="xs:integer"/>
> >  <xsl:param name="second" as="xs:integer"/>
> >  <xsl:sequence select="$first + $second"/>
> > </xsl:function/>
>
> Why is  <xsl:sequence select="$first + $second"/> more efficient than
> <xsl:value-of select="$first + $second"/>?
>
> I can understand that math on atomic values ought to be more efficient
> than math on text nodes,

Yes, and there reason is in additional data conversions.

> but is the benefits something we can measure
> in any meaningful sense?

It's very possible that this particular sample wouldn't manifest any 
benefits, as
a processor may optimize it, however in a more complicated case an advantage
can be measured: it's an execution time.
--
Vladimir Nesterovsky
http://www.nesterovsky-bros.com