Interesting use of constant, I kind of like it. I would make a wrapper for tie-ing so that you could provide a sub protoyped to accept an optional block so you can change sort/eval definition system. If no sort is specified it should do a default sort (not even the current "smart" default you have coded).

Update, for how to use coderef en lieu of eval. 

sub sortblock {
     my($self, $sort) = @_;
     local *hash = %{$self->[HASH]};
     sort $self->[SORT] keys %hash;
     $self->[CHANGED] = 1;
 }

[download]

--
I'm not belgian but I play one on TV.

In reply to Re: RFC - inplace upgrade for Tie::SortHash by belg4mit
in thread RFC - inplace upgrade for Tie::SortHash by Limbic~Region

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