Re: test results differents between the perl and XS parsers

[Gavin Smith]

On Mon, Nov 16, 2020 at 10:09:59PM -0600, Jacob Bachmeyer wrote:
> Gavin Smith wrote:
> > [...]
> > In the Perl code, however, there is always a current line number object
> > available and when this is referenced the line number is stored as
> > a reference to the object.  It looks like
> > 
> >           $current->{'contents'}->[-1]->{'line_nr'} = $line_nr;
> > 
> > Hence the object can easily be shared.  Perl's garbage collector
> > takes care of memory leaks.
> 
> Wait a minute here... if the line number object is being shared, how do
> elements from different lines get different line numbers?
> 
> Why is the line number even an object in the first place?  Why not simply
> read $. or use the HANDLE->input_line_number accessor?

It's pointless to speculate about this without looking at or attempting
to change the code.  It was surely done this way for a reason.