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[perl #24482] 5.8.2: sort CORE::keys() results in subroutine in sort

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From:
James E Keenan via RT
Date:
February 3, 2013 13:45
Subject:
[perl #24482] 5.8.2: sort CORE::keys() results in subroutine in sort
Message ID:
rt-3.6.HEAD-27190-1359899138-1103.24482-15-0@perl.org
On Sun Jan 27 17:42:43 2013, jkeenan wrote:
> On Tue Jan 10 13:42:33 2012, sprout wrote:
> > On Sun Nov 16 09:10:38 2003, rafael wrote:
> > > James Jurach (via RT) wrote:
> > > > 
> > > >  $ perl -we '%a=(a=>"b"); print((sort CORE::keys(%a)),"\n")'
> > > >  Undefined subroutine in sort at -e line 1.
> > > > 
> > > >  $ perl -we '%a=(a=>"b"); print((sort keys(%a)),"\n")'
> > > >  a
> > > 
> > > This is due to two facts :
> > > 
> > > - perl will parse "sort foo(...)" and "sort(foo ...)" as "sort foo
..."
> > >   In other words, it doesn't take the parens into account
> > > - perl parses CORE::keyword as a subroutine, not as the corresponding
> > >   keyword.
> > > 
> > > Fixing this would probably break backward incompatibility in
> > > undesirable ways.
> > 
> > How would that break compatibility?  Who is currently putting custom
> > subroutines in the CORE:: namespace?
> > 
> 
> There's been no correspondence in this ticket for a year.  Reviewing
> this older ticket tonight, I don't see a strong case that there's a bug
> in the source code which needs fixing.
> 
> Anyone disagree?  If not, I will close the ticket in seven days and am
> taking it for that purpose.
> 

No one spoke up to argue for the existence of a real bug.  Hence, I am
closing this ticket as per schedule.  Marking ticket Rejected.

Thank you very much.
Jim Keenan

---
via perlbug:  queue: perl5 status: open
https://rt.perl.org:443/rt3/Ticket/Display.html?id=24482

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