my $scalar_ref = \42;
my $array_ref = [ 1 .. 10 ];
my $hash_ref = { key => 'value' };
my $sub_ref = sub {};

eval $scalar_ref; # doesn't dereference the scalar
eval $array_ref; # doesn't dereference the array
eval $hash_ref; # doesn't dereference the hash
eval $sub_ref; # doesn't ______ the ______