| Name : perl-warnings-pedantic
| |
| Version : 0.02
| Vendor : obs://build_opensuse_org/devel:languages:perl
|
| Release : 4.17
| Date : 2017-08-04 17:26:45
|
| Group : Development/Libraries/Perl
| Source RPM : perl-warnings-pedantic-0.02-4.17.src.rpm
|
| Size : 0.02 MB
| |
| Packager : (none)
| |
| Summary : Dubious warnings for dubious constructs
|
Description :
Besides the \'pedantic\' category, which enables all of the following, the
module also provides separate categories for individual groups of warnings:
* * void_grep
Warns on void-context \'grep\':
grep /42/, AATTINC;
grep { /42/ } AATTINC;
This code is not particularly wrong; it\'s merely using grep as an
alternative to a foreach loop.
* * void_close
Warns on void-context \'close()\' and \'closedir()\':
close($fh);
closedir($dirh);
This is considered dubious behaviour because errors on IO operations,
such as ENOSPC, are not usually caught on the operation itself, but on
the close() of the related filehandle.
* * void_print
Warns on void-context print(), printf(), and say():
print();
say();
printf();
* * sort_prototype
Warns when \'sort()\'\'s first argument is a subroutine with a prototype,
and that prototype isn\'t \'$$\'.
sub takes_a_block (&AATT) { ... }
takes_a_block { stuff_here } AATTargs;
sort takes_a_block sub {...}, AATTargs;
This probably doesn\'t do what the author intended for it to do.
* * ref_assignment
Warns when you attempt to assign an arrayref to an array, without using
parenthesis to disambiguate:
my AATTa = [1,2,3]; # Warns; did you mean (...) instead of [...]?
my AATTa2 = ([1,2,3]); # Doesn\'t warn
This is a common mistake for people who\'ve recently picked up Perl.
* * maybe_const
Identifiers used as either hash keys or on the left hand side of the fat
comma are always interpreted as barewords, even if they have a constant
attached to that name:
use constant CONSTANT => 1;
my %x = CONSTANT => 5; # Used as \"CONSTANT\"
$x{CONSTANT} = 5; # Ditto
This is intended behaviour on Perl\'s part, but is an occasional source of
bugs.
Or in tree form:
all -+
|
+- pedantic --+
|
+- void_grep
|
+- void_close
|
+- void_print
|
+- sort_prototype
|
+- ref_assignment
|
+- maybe_const
All of the warnings can be turned off with
no warnings \'pedantic\';
as well as
no warnings;
or even
no warnings::pedantic;
Additionally, you can turn off specific warnings with
no warnings \'void_grep\';
no warnings \'void_close\';
no warnings \'void_print\'; # printf, print, and say
|
RPM found in directory: /packages/linux-pbone/ftp5.gwdg.de/pub/opensuse/repositories/devel:/languages:/perl:/CPAN-W/openSUSE_Tumbleweed/x86_64 |
