Re: [xsl] Better include them in the XSLT 2.0 spec (Was: Re: [xsl] Time for an exslt for 2.0?)

[Dimitre Novatchev <dnovatchev@xxxxxxxxx>]

> The debate with memo-function would be about whether it actually has any
> semantics, or is merely a performance hint. Could a conformant processor
> ignore it? What is the effect on a "creative" function, one that constructs
> new nodes each time it is called?

xsl:function -s with side effects should not have been allowed -- in
the first place.

So it is not only a nice wish to think about memoisation, but probably
a pressing need to clean up the spec from functions with side
effects.

Or be prepared for all kinds of a nasty surprise following the fact
that the value of

       my:f($x) is my:f($x)

is generally not guaranteed to be true()



Cheers,
Dimitre Novatchev.