6 use Variable::Magic qw/wizard cast VMG_OP_INFO_NAME/;
9 my $wiz = wizard set => sub { print "now set to ${$_[0]}!\n" },
10 free => sub { print "destroyed!\n" };
14 $a = 2; # "now set to 2!"
18 my $wiz = wizard data => sub { $_[1] },
19 fetch => sub { $_[2] = $_[1] unless exists $_[0]->{$_[2]}; () },
20 store => sub { print "key $_[2] stored in $_[-1]\n" },
22 op_info => VMG_OP_INFO_NAME;
24 my %h = (_default => 0, apple => 2);
25 cast %h, $wiz, '_default';
26 print $h{banana}, "\n"; # "0", because the 'banana' key doesn't exist in %h
27 $h{pear} = 1; # "key pear stored in helem"