Here's an answer about this problem from the p5p list. Looks like this bug
is simply a known issue and will be fixed come 5.10.
-dave
---------- Forwarded message ----------
Date: Sun, 8 Oct 2006 10:52:35 +0100
From: Dave Mitchell <[EMAIL PROTECTED]>
To: Dave Rolsky <[EMAIL PROTECTED]>
Cc: perl5-porters@perl.org
Subject: Re: (Very) nested subref leak in 5.8.8?
On Sat, Oct 07, 2006 at 02:36:17PM -0500, Dave Rolsky wrote:
> I think I've found a leak in a fairly funky use of nested closures in Perl
> 5.8.8. I found it trying to track down a problem in Mason, I've narrowed
> it down to a fairly small example.
or even the smaller example:
sub {
my $object = Object->new();
sub {
$object;
sub { $object };
};
}->();
> This sure looks like a Perl bug, but I've been wrong before. I'd
> confirmation or correction here.
It a bug in perl. It been fixed in the 5.9.x branch, (by rewriting the
lexical/closure code from scratch), but not backported to 5.8.x as it was
too big a change.
> Is there any obvious way that I could make $thing clean up $object? That'd
> help fix the bug in Mason, at least. Unfortunately, tickling this bug in
> when you use Mason isn't all _that_ hard.
Not really. The 5.8.x code has lots of subtle closure bugs, which can
generally be triggered or avoided by slight changes to the code.
--
My Dad used to say 'always fight fire with fire', which is probably why
he got thrown out of the fire brigade.
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