Re: Tying sub arguments is rare?

Chip Salzenberg <[email protected]> writes:
>According to Graham Barr:
>> On Wed, Oct 13, 1999 at 02:10:07PM -0700, Chip Salzenberg wrote:
>> > > But then Tk will need a lot of work if XS is not going to be
>> > > compatible as it stresses XS now :-)
>> > 
>> > I see a thin thread of hope.  Are the ties via references user-visible?
>> 
>> I am not sure what you mean ...
>
>I mean, can Tk be changed to work without C<tie $$ref>, or is it part
>of Tk's public (documented) interface?

the documented interface is 

$obj->configure(-variable => \$foo)

where configure is an XS defined method. Given the reference the XS code 
must be able to arrange for C code to be called on either FETCH or STORE.
It is currently done with 'U' magic.

Other than wholesale changes XS side (which are inevitable) I don't see 
a problem.

-- 
Nick Ing-Simmons