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[perl #126715] Deprecate barewords?
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From:
Ed Avis
Date:
November 23, 2015 14:04
Subject:
[perl #126715] Deprecate barewords?
Message ID:
rt-4.0.18-11191-1448287445-762.126715-75-0@perl.org
# New Ticket Created by "Ed Avis"
# Please include the string: [perl #126715]
# in the subject line of all future correspondence about this issue.
# <URL: https://rt.perl.org/Ticket/Display.html?id=126715 >
This is a bug report for perl from eda@waniasset.com,
generated with the help of perlbug 1.40 running under perl 5.20.3.
-----------------------------------------------------------------
[Please describe your issue here]
Does anybody use barewords? I know that not everyone runs with 'use
strict' all the time, but is the ancient rule treating an unknown,
unquoted word as a string still useful? Even for the most throwaway
oneliner it seems to get in the way more than it helps. Other
opinions welcome, though.
If there is a consensus that barewords are no longer useful, perhaps
they could start to trigger a deprecation warning? Then in a future
release "use strict 'subs'" or something like it could be built in.
[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
category=core
severity=wishlist
---
Site configuration information for perl 5.20.3:
Configured by Red Hat, Inc. at Thu Sep 24 08:45:26 UTC 2015.
Summary of my perl5 (revision 5 version 20 subversion 3) configuration:
Platform:
osname=linux, osvers=4.1.6-100.fc21.x86_64, archname=x86_64-linux-thread-multi
uname='linux buildvm-04.phx2.fedoraproject.org 4.1.6-100.fc21.x86_64 #1 smp mon aug 17 22:20:37 utc 2015 x86_64 x86_64 x86_64 gnulinux '
config_args='-des -Doptimize=-O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -Dccdlflags=-Wl,--enable-new-dtags -Dlddlflags=-shared -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -Wl,-z,relro -Dshrpdir=/usr/lib64 -DDEBUGGING=-g -Dversion=5.20.3 -Dmyhostname=localhost -Dperladmin=root@localhost -Dcc=gcc -Dcf_by=Red Hat, Inc. -Dprefix=/usr -Dvendorprefix=/usr -Dsiteprefix=/usr/local -Dsitelib=/usr/local/share/perl5 -Dsitearch=/usr/local/lib64/perl5 -Dprivlib=/usr/share/perl5 -Dvendorlib=/usr/share/perl5/vendor_perl -Darchlib=/usr/lib64/perl5 -Dvendorarch=/usr/lib64/perl5/vendor_perl -Darchname=x86_64-linux-thread-multi -Dlibpth=/usr/local/lib64 /lib64 /usr/lib64 -Duseshrplib -Dusethreads -Duseithreads -Dusedtrace=/usr/bin/dt
race -Duselargefiles -Dd_semctl_semun -Di_db -Ui_ndbm -Di_gdbm -Di_shadow -Di_syslog -Dman3ext=3pm -Duseperlio -Dinstallusrbinperl=n -Ubincompat5005 -Uversiononly -Dpager=/usr/bin/less -isr -Dd_gethostent_r_proto -Ud_endhostent_r_proto -Ud_sethostent_r_proto -Ud_endprotoent_r_proto -Ud_setprotoent_r_proto -Ud_endservent_r_proto -Ud_setservent_r_proto -Dscriptdir=/usr/bin -Dusesitecustomize'
hint=recommended, useposix=true, d_sigaction=define
useithreads=define, usemultiplicity=define
use64bitint=define, use64bitall=define, uselongdouble=undef
usemymalloc=n, bincompat5005=undef
Compiler:
cc='gcc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -fwrapv -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
optimize='-O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic',
cppflags='-D_REENTRANT -D_GNU_SOURCE -fwrapv -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include'
ccversion='', gccversion='5.1.1 20150618 (Red Hat 5.1.1-4)', gccosandvers=''
intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
ivtype='long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
alignbytes=8, prototype=define
Linker and Libraries:
ld='gcc', ldflags =' -fstack-protector -L/usr/local/lib'
libpth=/usr/local/lib64 /lib64 /usr/lib64 /usr/local/lib /usr/lib /lib/../lib64 /usr/lib/../lib64 /lib
libs=-lpthread -lresolv -lnsl -lgdbm -ldb -ldl -lm -lcrypt -lutil -lc -lgdbm_compat
perllibs=-lpthread -lresolv -lnsl -ldl -lm -lcrypt -lutil -lc
libc=libc-2.21.so, so=so, useshrplib=true, libperl=libperl.so
gnulibc_version='2.21'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,--enable-new-dtags'
cccdlflags='-fPIC', lddlflags='-shared -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -Wl,-z,relro -L/usr/local/lib'
Locally applied patches:
Fedora Patch1: Removes date check, Fedora/RHEL specific
Fedora Patch3: support for libdir64
Fedora Patch4: use libresolv instead of libbind
Fedora Patch5: USE_MM_LD_RUN_PATH
Fedora Patch6: Skip hostname tests, due to builders not being network capable
Fedora Patch7: Dont run one io test due to random builder failures
Fedora Patch15: Define SONAME for libperl.so
Fedora Patch16: Install libperl.so to -Dshrpdir value
Fedora Patch22: Document Math::BigInt::CalcEmu requires Math::BigInt (CPAN RT#85015)
Fedora Patch25: Use stronger algorithm needed for FIPS in t/op/crypt.t (RT#121591)
Fedora Patch26: Make *DBM_File desctructors thread-safe (RT#61912)
Fedora Patch27: Report inaccesible file on failed require (RT#123270)
Fedora Patch28: Use stronger algorithm needed for FIPS in t/op/taint.t (RT#123338)
Fedora Patch29: Fix debugger y command scope level
Fedora Patch200: Link XS modules to libperl.so with EU::CBuilder on Linux
Fedora Patch201: Link XS modules to libperl.so with EU::MM on Linux
---
@INC for perl 5.20.3:
/home/eda/share/perl5
/home/eda/lib/perl5/
/home/eda/lib64/perl5/
/usr/local/lib64/perl5
/usr/local/share/perl5
/usr/lib64/perl5/vendor_perl
/usr/share/perl5/vendor_perl
/usr/lib64/perl5
/usr/share/perl5
.
---
Environment for perl 5.20.3:
HOME=/home/eda
LANG=en_GB.UTF-8
LANGUAGE (unset)
LC_COLLATE=C
LC_CTYPE=en_GB.UTF-8
LC_MESSAGES=en_GB.UTF-8
LC_MONETARY=en_GB.UTF-8
LC_NUMERIC=en_GB.UTF-8
LC_TIME=en_GB.UTF-8
LD_LIBRARY_PATH (unset)
LOGDIR (unset)
PATH=/home/eda/bin:/home/eda/bin:/usr/local/bin:/usr/bin:/sbin:/usr/sbin:/sbin:/usr/sbin
PERL5LIB=/home/eda/share/perl5:/home/eda/lib/perl5/:/home/eda/lib64/perl5/
PERL_BADLANG (unset)
SHELL=/bin/bash
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[perl #126715] Deprecate barewords?
by Ed Avis