clone 476579 -1
retitle 476579 libmoose-perl: uses an experimental perl regexp feature, breaks
with threads
retitle -1 perl: crash with ??{ code } regexps and threads
reassign -1 perl 5.8.8-12
severity -1 normal
thanks
On Thu, Apr 17, 2008 at 08:02:43PM +0200, Piotr Roszatycki wrote:
> Package: libmoose-perl
> Version: 0.40-1
> Severity: important
>
> Moose can't be used with threads:
> (sid)[EMAIL PROTECTED]:/home/dexter# perl -ale 'use threads; package P;
> use Moose; has "a" => isa=>"Str | Num"; package main; my $thr =
> threads->create(sub { }); $thr->join(); '
> *** glibc detected *** perl: double free or corruption (!prev): 0x086c5480 ***
Moose::Util::TypeConstraints uses the (??{ code }) regexp feature,
which has this disclaimer in the 'perlre' document:
WARNING: This extended regular expression feature is considered highly
experimental, and may be changed or deleted without notice. A simplified
version of the syntax may be introduced for commonly used idioms.
I can reproduce the crash with just
#!/usr/bin/perl
use threads;
use re 'eval';
my $a = qr{(??{a})};
print "match\n" if "bc" =~ /(??{b})/;
my $thr = threads->create(sub { });
$thr->join();
__END__
I'm cloning a separate perl bug about this (with a lower severity because
of the disclaimer). It looks like this is fixed in perl 5.10.0, which
will hopefully enter sid soon, but I'll look into that better later.
Cheers,
--
Niko Tyni [EMAIL PROTECTED]
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