Re: Tying sub arguments is rare?

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, but I have seen tie used as

sub abc {

 # ... code ...
 tie $_[1], 'Package';
 # ... code ...
}

and also

sub def {
  my $ref = shift;

  tie $$ref, 'Package';

 # ... code ...
}

It is the latter of the two that I seem to remember being used
with some Tk modules. Normally to detect when the variable
was changed.

-- 
For myself I am an optimist--it does not seem to be much use being
anything else. -- Winston Churchill