That's nasty :)

It's much simpler using Tie::StdHash as you only need to implement the methods that you want to override.

package Tie::Hash::ExpandingHash;
use strict;
use warnings;

use Tie::Hash;
our @ISA = 'Tie::StdHash';

sub CLEAR    { } # NOT IMPLEMENTED

sub FORCE_CLEAR { %{$_[0]} = () }

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<http://dave.org.uk>

"The first rule of Perl club is you do not talk about Perl club."
-- Chip Salzenberg

In reply to Re^3: Assign (key, value) to a hash w/o clobbering hash by davorg
in thread Assign (key, value) to a hash w/o clobbering hash by Melly

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