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List: perl5-porters
Subject: [perl #42226] warn() causes $object->method(Class->method) to fail
From: "fbriere () fbriere ! net (via RT)" <perlbug-followup () perl ! org>
Date: 2007-03-30 22:51:26
Message-ID: rt-3.6.HEAD-30557-1175295086-1114.42226-75-0 () perl ! org
[Download RAW message or body]
# New Ticket Created by fbriere@fbriere.net
# Please include the string: [perl #42226]
# in the subject line of all future correspondence about this issue.
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=42226 >
This is a bug report for perl from fbriere@fbriere.net,
generated with the help of perlbug 1.35 running under perl v5.8.8.
-----------------------------------------------------------------
[Please enter your report here]
This is the darnest thing I've seen in quite a while:
sub Foo::bar {
warn;
return 'something';
}
my $self = bless {};
$self->isa(Foo->bar);
This fails with:
Can't call method "isa" without a package or object reference
As you might have guessed, it all works fine when removing the warn().
> From what I can tell, this occurs when calling warn() inside a method that
is itself called as an argument to another method. Whether either of those
methods is called upon a class or an object doesn't seem to matter.
This bug doesn't occur when warn() is called with arguments (even undef), or
when calling print STDERR or eval{die} instead.
[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
category=core
severity=low
---
Site configuration information for perl v5.8.8:
Configured by Debian Project at Wed Dec 6 23:17:41 UTC 2006.
Summary of my perl5 (revision 5 version 8 subversion 8) configuration:
Platform:
osname=linux, osvers=2.6.18.3, archname=i486-linux-gnu-thread-multi
uname='linux saens 2.6.18.3 #1 smp sat nov 25 13:39:52 est 2006 i686 gnulinux '
config_args='-Dusethreads -Duselargefiles -Dccflags=-DDEBIAN -Dcccdlflags=-fPIC \
-Darchname=i486-linux-gnu -Dprefix=/usr -Dprivlib=/usr/share/perl/5.8 \
-Darchlib=/usr/lib/perl/5.8 -Dvendorprefix=/usr -Dvendorlib=/usr/share/perl5 \
-Dvendorarch=/usr/lib/perl5 -Dsiteprefix=/usr/local \
-Dsitelib=/usr/local/share/perl/5.8.8 -Dsitearch=/usr/local/lib/perl/5.8.8 \
-Dman1dir=/usr/share/man/man1 -Dman3dir=/usr/share/man/man3 \
-Dsiteman1dir=/usr/local/man/man1 -Dsiteman3dir=/usr/local/man/man3 -Dman1ext=1 \
-Dman3ext=3perl -Dpager=/usr/bin/sensible-pager -Uafs -Ud_csh -Uusesfio -Uusenm \
-Duseshrplib -Dlibperl=libperl.so.5.8.8 -Dd_dosuid -des' hint=recommended, \
useposix=true, d_sigaction=define usethreads=define use5005threads=undef \
useithreads=define usemultiplicity=define useperlio=define d_sfio=undef \
uselargefiles=define usesocks=undef use64bitint=undef use64bitall=undef \
uselongdouble=undef usemymalloc=n, bincompat5005=undef
Compiler:
cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBIAN \
-fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE \
-D_FILE_OFFSET_BITS=64', optimize='-O2',
cppflags='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBIAN \
-fno-strict-aliasing -pipe -I/usr/local/include' ccversion='', gccversion='4.1.2 \
20061115 (prerelease) (Debian 4.1.1-20)', gccosandvers='' intsize=4, longsize=4, \
ptrsize=4, doublesize=8, byteorder=1234 d_longlong=define, longlongsize=8, \
d_longdbl=define, longdblsize=12 ivtype='long', ivsize=4, nvtype='double', nvsize=8, \
Off_t='off_t', lseeksize=8 alignbytes=4, prototype=define
Linker and Libraries:
ld='cc', ldflags =' -L/usr/local/lib'
libpth=/usr/local/lib /lib /usr/lib
libs=-lgdbm -lgdbm_compat -ldb -ldl -lm -lpthread -lc -lcrypt
perllibs=-ldl -lm -lpthread -lc -lcrypt
libc=/lib/libc-2.3.6.so, so=so, useshrplib=true, libperl=libperl.so.5.8.8
gnulibc_version='2.3.6'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib'
Locally applied patches:
---
@INC for perl v5.8.8:
/etc/perl
/usr/local/lib/perl/5.8.8
/usr/local/share/perl/5.8.8
/usr/lib/perl5
/usr/share/perl5
/usr/lib/perl/5.8
/usr/share/perl/5.8
/usr/local/lib/site_perl
.
---
Environment for perl v5.8.8:
HOME=/home/fbriere
LANG=en_CA
LANGUAGE (unset)
LD_LIBRARY_PATH (unset)
LOGDIR (unset)
PATH=/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games:.
PERL_BADLANG (unset)
SHELL=/bin/bash
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