tie is overkill. Use Variable::Magic. 

use Variable::Magic qw( wizard cast );
 
my $wiz = wizard(
   set => sub { print "Now set to ${$_[0]}.\n" },
);

cast my $name, $wiz;

[download]

In reply to Re: call subroutine if scalar is changed by ikegami
in thread call subroutine if scalar is changed by Anonymous Monk

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