That's a lot of extra lexicals that aren't being used in the closure. Does it carry them around?

That's easy to test:

#!/usr/bin/perl

use strict;
use warnings;

sub DESTROY {
    print "DESTROY called!\n";
}

sub make_accessor {  
    my $self = shift;
    my ($name, $index) = (bless ([] => 'main'), 1);
        
    no strict 'refs';
    *{ref($self) . "::$name"} = sub {
        my $self = shift;
        return $self->[$index] unless @_;
        $self->[$index] = $_[0];
        $self;
    };
    1;
}

my $foo = make_accessor;

print "End of program\n";
__END__
DESTROY called!
End of program
[download]

So the answer is "no".

Abigail