#NAME

Perl::Critic::Policy::InputOutput::RequireCheckedClose - Write my $error = close $fh; instead of close $fh;.

#AFFILIATION

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

#DESCRIPTION

The perl builtin I/O function close returns a false value on failure. That value should be checked to ensure that the close was successful.

my $error = close $filehandle;                   # ok
close $filehandle or die "unable to close: $!";  # ok
close $filehandle;                               # not ok

use autodie qw< :io >;
close $filehandle;                               # 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 aren't taken into account.

#CONFIGURATION

If you create a module that exports autodie you can tell this policy about it with the autodie_modules setting:

[InputOutput::RequireCheckedSyscalls]
autodie_modules = My::Thing

#AUTHOR

Andrew Moore <amoore@mooresystems.com>

#ACKNOWLEDGMENTS

This policy module is based heavily on policies written by Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>.

#COPYRIGHT

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.