in reply to Access reference of a tied hash within TIEHASH

No, not unless you pass it in manually.

use v5.14; package MyHash { use Data::Dumper; use Tie::Hash (); use base "Tie::StdHash"; sub TIEHASH { my $class = shift; print Dumper @_; $class->SUPER::TIEHASH(@_); } } my %hash; tie %hash, MyHash => \%hash;
package Cow { use Moo; has name => (is => 'lazy', default => sub { 'Mooington' }) } say Cow->new->name