NAME

       Perl::Critic::Policy::Subroutines::ProhibitBuiltinHomonyms - Don't declare your own "open"
       function.

AFFILIATION

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

DESCRIPTION

       Common sense dictates that you shouldn't declare subroutines with the same name as one of
       Perl's built-in functions or keywords.  See perlfunc for a list of built-in functions; see
       perlsyn for keywords.

         sub open {}    #not ok
         sub exit {}    #not ok
         sub print {}   #not ok
         sub foreach {} #not ok
         sub if {}      #not ok

         #You get the idea...

       Exceptions are made for "BEGIN", "END", "INIT" and "CHECK" blocks, as well as "AUTOLOAD",
       "DESTROY", and "import" subroutines.

CONFIGURATION

       You can configure additional builtin homonyms to accept by specifying them in a space-
       delimited list to the "allow" option:

           [Subroutines::ProhibitUnusedPrivateSubroutines]
           allow = default index

       These are added to the default list of exemptions from this policy. So the above allows
       "sub default {}" and "sub index {}".

CAVEATS

       It is reasonable to declare an object method with the same name as a Perl built-in
       function, since they are easily distinguished from each other.  However, at this time,
       Perl::Critic cannot tell whether a subroutine is static or an object method.

AUTHOR

       Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>

COPYRIGHT

       Copyright (c) 2005-2022 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 v5.36.0                      Perl::Critic::Policy::Subroutines::ProhibitBuiltinHomonyms(3pm)