Perl::Critic::Policy::InputOutput::RequireBracedFileHandleWithPrint - Write C<print {$FH} $foo, $bar;> instead of C<print $FH $foo, $bar;>. |
Perl::Critic::Policy::InputOutput::RequireBracedFileHandleWithPrint - Write print {$FH} $foo, $bar;
instead of print $FH $foo, $bar;
.
This Policy is part of the core Perl::Critic distribution.
The print
and printf
functions have a unique syntax that
supports an optional file handle argument. Conway suggests wrapping
this argument in braces to make it visually stand out from the other
arguments. When you put braces around any of the special
package-level file handles like STDOUT
, STDERR
, and DATA
, you
must the '*'
sigil or else it won't compile under use strict
'subs'
.
print $FH "Mary had a little lamb\n"; #not ok print {$FH} "Mary had a little lamb\n"; #ok
print STDERR $foo, $bar, $baz; #not ok print {STDERR} $foo, $bar, $baz; #won't compile under 'strict' print {*STDERR} $foo, $bar, $baz; #perfect!
This Policy is not configurable except for the standard options.
Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>
Copyright (c) 2005-2011 Imaginative Software Systems. All rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license can be found in the LICENSE file included with this module.
Perl::Critic::Policy::InputOutput::RequireBracedFileHandleWithPrint - Write C<print {$FH} $foo, $bar;> instead of C<print $FH $foo, $bar;>. |