27 lines
654 B
Perl
Executable File
27 lines
654 B
Perl
Executable File
#!/usr/bin/env perl
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use strict;
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use warnings;
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use lib qw<blib/arch blib/lib>;
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use Variable::Magic qw<wizard cast dispell>;
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sub foo { print STDERR "got ${$_[0]}!\n" }
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my $bar = sub { ++${$_[0]}; print STDERR "now set to ${$_[0]}!\n"; };
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my $a = 1;
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{
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my $wiz = wizard get => \&foo,
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set => $bar,
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free => sub { print STDERR "deleted!\n"; };
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cast $a, $wiz, qw<a b c>;
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++$a; # "got 1!", "now set to 3!"
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dispell $a, $wiz;
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cast $a, $wiz;
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my $b = 123;
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cast $b, $wiz;
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} # "deleted!"
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my $b = $a; # "got 3!"
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$a = 3; # "now set to 4!"
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$b = 3; # (nothing)
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