probably not a direct reference, but by calling a function myLast()
that returns
$sequence[last]
I want this to be calculated only once. My question was will it be
successful to use the
saxon:memo-function="yes" attribute
on the definition of myLast()
I suspect that's not a good idea. Evaluating $seq[last] is probably much
faster than calculating the hash key to discover that the result is already
stored. Memo functions work best when the arguments are small.
As always, though, the only definitive answer is to measure it.
Michael Kay
http://www.saxonica.com/
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