1Perl::Critic::Policy::IUPnseperurlt:OC:uoCtnrptiurttii:bc:u:Rt:eePqdouliPireceryCl:h:eDIconkcpeuudmtOeOpnuettnap(tu3it)o:n:RequireCheckedOpen(3)
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NAME

6       Perl::Critic::Policy::InputOutput::RequireCheckedOpen - Write "my
7       $error = open $fh, $mode, $filename;" instead of "open $fh, $mode,
8       $filename;".
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AFFILIATION

11       This Policy is part of the core Perl::Critic distribution.
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DESCRIPTION

14       The perl builtin I/O function "open" returns a false value on failure.
15       That value should always be checked to ensure that the open was
16       successful.
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18           my $error = open( $filehandle, $mode, $filename );                  # ok
19           open( $filehandle, $mode, $filename ) or die "unable to open: $!";  # ok
20           open( $filehandle, $mode, $filename );                              # not ok
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22           use autodie;
23           open $filehandle, $mode, $filename;                                 # ok
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25       You can use autodie, Fatal, or Fatal::Exception to get around this.
26       Currently, autodie is not properly treated as a pragma; its lexical
27       effects aren't taken into account.
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CONFIGURATION

30       If you create a module that exports "autodie" you can tell this policy
31       about it with the "autodie_modules" setting:
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33           [InputOutput::RequireCheckedSyscalls]
34           autodie_modules = My::Thing
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AUTHOR

37       Andrew Moore <amoore@mooresystems.com>
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ACKNOWLEDGMENTS

40       This policy module is based heavily on policies written by Jeffrey Ryan
41       Thalhammer <jeff@imaginative-software.com>.
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44       Copyright (c) 2007-2011 Andrew Moore.  All rights reserved.
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46       This program is free software; you can redistribute it and/or modify it
47       under the same terms as Perl itself.  The full text of this license can
48       be found in the LICENSE file included with this module.
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52perl v5.34.0          Perl::Critic2:0:2P2o-l0i1c-y2:1:InputOutput::RequireCheckedOpen(3)
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