Subject: Re: parameters in XSLT 2.0
From: Bruce D'Arcus <bdarcus@xxxxxxxxx>
Date: Tue, 7 Jun 2005 19:49:35 -0400
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On Jun 7, 2005, at 7:40 PM, Michael Kay wrote:
The effect of using "as" on performance may be positive or negative.
It may
cause the system to do run-time checks that would otherwise not be
performed. On the other hand, it gives the system compile-time
information
that may be useful to perform optimizations. I would use it as widely
as
possible because it speeds the development cycle and catches bugs more
efficiently, and not worry too much about any effect on performance.
I mean in the specific case of passing a reference vs. creating a
temporary tree: is the former by definition more efficient? I've seen
you mention on a few occasions that it's expensive to create an
unnecessary node (e.g. using xsl:value-of vs. xsl:sequence).
Bruce
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