Tuple types

[Pavel Minaev]

On Wed, Sep 2, 2009 at 3:44 AM, Florent Georges<http://x-query.com/mailman/listinfo/talk> wrote:
>> > This makes sense, though it would be a nuisance to have to
>> > define ref() and deref() every time.  Is there any
>> > consideration to make them standard library functions?
>
>> My recollection is that the WG considered adding them and
>> rejected the idea on the grounds that functions that can be
>> defined in XQuery itself better belong in something like EXPath
>> function modules.  It's highly likely that I'll submit such a
>> module to EXPath in the future.
>
>  My first reaction was: "Why? Just use the HOF feature directly."

It's an obvious solution in case of deref(), but having to type out
identity lambdas in full every time will get repetitive fast, which is
why I think ref() is still handy regardless.