Perl::Critic::Policy::ControlStructures::ProhibitLabelsWithSpecialBlockNames(3pm)
                                           User Contributed Perl Documentation


NAME
       Perl::Critic::Policy::ControlStructures::ProhibitLabelsWithSpecialBlockNames
       - Don't use labels that are the same as the special block names.

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

DESCRIPTION
       When using one of the special Perl blocks "BEGIN", "END", "CHECK",
       "INIT", and "UNITCHECK", it is easy to mistakenly add a colon to the
       end of the block name.  E.g.:

           # a BEGIN block that gets executed at compile time.
           BEGIN { <...code...> }

           # an ordinary labeled block that gets executed at run time.
           BEGIN: { <...code...> }

       The labels "BEGIN:", "END:", etc. are probably errors.  This policy
       prohibits the special Perl block names from being used as labels.

CONFIGURATION
       This Policy is not configurable except for the standard options.

SEE ALSO
       The Perl Buzz article on this issue at
       <http://perlbuzz.com/2008/05/colons-invalidate-your-begin-and-end-blocks.html>.

ACKNOWLEDGMENT
       Randy Lauen for identifying the problem.

AUTHOR
       Mike O'Regan

COPYRIGHT
       Copyright (c) 2008-2011 Mike O'Regan.  All rights reserved.

       This program is free software; you can redistribute it and/or modify it
       under the same terms as Perl itself.

perl v5.38.0                      2023-07-26
Perl::Critic::Policy::ControlStructures::ProhibitLabelsWithSpecialBlockNames(3pm)