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use strict;
use warnings;
use Test::More tests => 1;
use Algorithm::C3;
=pod
example taken from: L<http://gauss.gwydiondylan.org/books/drm/drm_50.html>
Object
^
|
LifeForm
^ ^
/ \
Sentient BiPedal
^ ^
| |
Intelligent Humanoid
^ ^
\ /
Vulcan
define class <sentient> (<life-form>) end class;
define class <bipedal> (<life-form>) end class;
define class <intelligent> (<sentient>) end class;
define class <humanoid> (<bipedal>) end class;
define class <vulcan> (<intelligent>, <humanoid>) end class;
=cut
{
package Object;
sub my_ISA {
no strict 'refs';
@{$_[0] . '::ISA'};
}
package LifeForm;
our @ISA = qw(Object);
package Sentient;
our @ISA = qw(LifeForm);
package BiPedal;
our @ISA = qw(LifeForm);
package Intelligent;
our @ISA = qw(Sentient);
package Humanoid;
our @ISA = qw(BiPedal);
package Vulcan;
our @ISA = qw(Intelligent Humanoid);
}
is_deeply(
[ Algorithm::C3::merge('Vulcan', 'my_ISA') ],
[ qw(Vulcan Intelligent Sentient Humanoid BiPedal LifeForm Object) ],
'... got the right C3 merge order for the Vulcan Dylan Example');
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