Manual Reference Pages - PERL::CRITIC::POLICY::INPUTOUTPUT::REQUIRECHECKEDOPEN (3)
Perl::Critic::Policy::InputOutput::RequireCheckedOpen - Write "my $error = open $fh, $mode, $filename;" instead of "open $fh, $mode, $filename;".
This Policy is part of the core Perl::Critic
The perl builtin I/O function open returns a false value on
failure. That value should always be checked to ensure that the open
my $error = open( $filehandle, $mode, $filename ); # ok
open( $filehandle, $mode, $filename ) or die "unable to open: $!"; # ok
open( $filehandle, $mode, $filename ); # not ok
open $filehandle, $mode, $filename; # ok
You can use autodie, Fatal, or
Fatal::Exception to get around
this. Currently, autodie is not properly treated as a pragma; its
lexical effects arent taken into account.
This Policy is not configurable except for the standard options.
Andrew Moore <firstname.lastname@example.org>
This policy module is based heavily on policies written by Jeffrey
Ryan Thalhammer <email@example.com>.
Copyright (c) 2007-2011 Andrew Moore. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the same terms as Perl itself. The full text of this license
can be found in the LICENSE file included with this module.
|perl v5.20.3 ||PERL::CRITIC::POLICY::INPUTOUTPUT::REQUIRECHECKEDOPEN (3) ||2016-04-03 |
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