Perl::Critic::Policy::Community::MultidimensionalArrayEmulation - Don't use multidimensional array

       This policy is part of Perl::Critic::Community.

       Dan Book, "dbook@cpan.org"

       This policy is not configurable except for the standard options.

       Copyright 2015, Dan Book.

       This library is free software; you may redistribute it and/or modify it under the terms of the Artistic
       License version 2.0.

       When used with the "@" or "%" sigils, a list in a hash subscript ("{}") will access multiple elements of
       the hash as a slice. With the "$" sigil however, it accesses the single element at the key defined by
       joining the list with the subscript separator $;. This feature is known as "Multi-dimensional array
       emulation" in perldata and provided a way to emulate a multidimensional structure before Perl 5
       introduced references. Perl now supports true multidimensional structures, so this feature is now
       unnecessary in most cases.

       In Perl 5.34 or newer, or automatically under "use v5.36" or newer, ""The 'multidimensional' feature" in
       feature can be disabled to remove this syntax from the parser.

         $foo{$x,$y,$z}   # not ok
         $foo{qw(a b c)}  # not ok
         $foo{$x}{$y}{$z} # ok
         @foo{$x,$y,$z}   # ok

       Perl::Critic::Policy::Community::MultidimensionalArrayEmulation - Don't use multidimensional array
       emulation

       Perl::Critic

perl v5.40.1                                       2025-03-22              Perl::Critic::...lArrayEmulation(3pm)