That's no excuse for implementing a constant using tie.

use strict;
use warnings;

Internals::SvREADONLY(my $answer = 42, 1);

print "This interpolates: $answer\n";
$answer++;  # dies

[download]
use Moops; class Cow :rw { has name => (default => 'Ermintrude') }; say Cow->new->name

In reply to Re^3: question regarding "Tie" in Perl by tobyink
in thread question regarding "Tie" in Perl by lightoverhead

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