blob: 4941294233afbc05d9c5b3ec8f64b4401d7932ce (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
#!./perl
use strict;
use warnings;
BEGIN {
unless (-d 'blib') {
chdir 't' if -d 't';
@INC = '../lib';
}
}
use Test::More tests => 1;
use mro;
=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;
use mro 'dfs';
package LifeForm;
use mro 'dfs';
use base 'Object';
package Sentient;
use mro 'dfs';
use base 'LifeForm';
package BiPedal;
use mro 'dfs';
use base 'LifeForm';
package Intelligent;
use mro 'dfs';
use base 'Sentient';
package Humanoid;
use mro 'dfs';
use base 'BiPedal';
package Vulcan;
use mro 'dfs';
use base ('Intelligent', 'Humanoid');
}
is_deeply(
mro::get_linear_isa('Vulcan'),
[ qw(Vulcan Intelligent Sentient LifeForm Object Humanoid BiPedal) ],
'... got the right MRO for the Vulcan Dylan Example');
|
