annon { $label => ...} with out assignment is seen as a list?

annon_hash_eq_list.t

#!/usr/bin/env perl 
use strict;
use warnings;
use Test::Most qw{no_plan};

my $data = [{ label => {key => 'value'}}];

eq_or_diff
  [ map{ my $hash = $_;
         my $x =
         { map { my $label = $_;
                 $label => $hash->{$label}
               } keys %$hash
         }
       } @$data
  ],
  [ map{ my $hash = $_;
         #my $x =  
         { map { my $label = $_;
                 $label => $hash->{$label}
               } keys %$hash
         }
       } @$data
  ],
  q| annon { $label => ...} with out assignment is seen as a list? |;

__END__
not ok 1 -  annon { $label => ...} with out assignment is seen as a list? 
#   Failed test ' annon { $label => ...} with out assignment is seen as a list? '
#   at data_eq.t line 17.
# +----+----------------------+----+--------------------+
# | Elt|Got                   | Elt|Expected            |
# +----+----------------------+----+--------------------+
# |   0|[                     |   0|[                   |
# |    |                      *   1|  'label',          *
# |   1|  {                   |   2|  {                 |
# *   2|    label => {        *   3|    key => 'value'  *
# *   3|      key => 'value'  *    |                    |
# *   4|    }                 *    |                    |
# |   5|  }                   |   4|  }                 |
# |   6|]                     |   5|]                   |
# +----+----------------------+----+--------------------+
1..1
# Looks like you failed 1 test of 1.  

I think it's interpreting the braces as a bare block.

You can stick "scalar" or + in front of the { to force Perl to interpret it as a hash ref.

Ahhhh. Bare block that makes sence.