Perl::Critic::Policy::References::ProhibitDoubleSigils(3pm) User Contributed Perl Documentation NAME Perl::Critic::Policy::References::ProhibitDoubleSigils - Write "@{ $array_ref }" instead of "@$array_ref". AFFILIATION This Policy is part of the core Perl::Critic distribution. DESCRIPTION When dereferencing a reference, put braces around the reference to separate the sigils. Especially for newbies, the braces eliminate any potential confusion about the relative precedence of the sigils. push @$array_ref, 'foo', 'bar', 'baz'; #not ok push @{ $array_ref }, 'foo', 'bar', 'baz'; #ok foreach ( keys %$hash_ref ){} #not ok foreach ( keys %{ $hash_ref } ){} #ok CONFIGURATION This Policy is not configurable except for the standard options. AUTHOR Jeffrey Ryan Thalhammer COPYRIGHT 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 v5.38.0 2023-07-26 Perl::Critic::Policy::References::ProhibitDoubleSigils(3pm)