Commit | Line | Data |
0882828e |
1 | #!/usr/bin/perl |
2 | |
3 | use strict; |
4 | use warnings; |
5 | |
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6 | use Test::More tests => 8; |
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7 | |
8 | BEGIN { |
9 | use_ok('Class::MOP'); |
10 | use_ok('Class::MOP::Class'); |
11 | } |
12 | |
13 | =pod |
14 | |
15 | A |
16 | / \ |
17 | B C |
18 | \ / |
19 | D |
20 | |
21 | =cut |
22 | |
23 | { |
24 | package My::A; |
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25 | use metaclass; |
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26 | package My::B; |
27 | our @ISA = ('My::A'); |
28 | package My::C; |
29 | our @ISA = ('My::A'); |
30 | package My::D; |
31 | our @ISA = ('My::B', 'My::C'); |
32 | } |
33 | |
34 | is_deeply( |
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35 | [ My::D->meta->class_precedence_list ], |
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36 | [ 'My::D', 'My::B', 'My::A', 'My::C', 'My::A' ], |
37 | '... My::D->meta->class_precedence_list == (D B A C A)'); |
38 | |
b7bdffc3 |
39 | is_deeply( |
40 | [ My::D->meta->linearized_isa ], |
41 | [ 'My::D', 'My::B', 'My::A', 'My::C' ], |
42 | '... My::D->meta->linearized_isa == (D B A C)'); |
43 | |
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44 | =pod |
45 | |
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46 | A <-+ |
47 | | | |
48 | B | |
49 | | | |
50 | C --+ |
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51 | |
52 | =cut |
53 | |
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54 | # 5.9.5+ dies at the moment of |
55 | # recursive @ISA definition, not later when |
56 | # you try to use the @ISAs. |
57 | eval { |
58 | { |
59 | package My::2::A; |
60 | use metaclass; |
61 | our @ISA = ('My::2::C'); |
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62 | |
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63 | package My::2::B; |
64 | our @ISA = ('My::2::A'); |
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65 | |
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66 | package My::2::C; |
67 | our @ISA = ('My::2::B'); |
68 | } |
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69 | |
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70 | My::2::B->meta->class_precedence_list |
71 | }; |
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72 | ok($@, '... recursive inheritance breaks correctly :)'); |
73 | |
74 | =pod |
75 | |
76 | +--------+ |
77 | | A | |
78 | | / \ | |
79 | +->B C-+ |
80 | \ / |
81 | D |
82 | |
83 | =cut |
84 | |
85 | { |
86 | package My::3::A; |
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87 | use metaclass; |
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88 | package My::3::B; |
89 | our @ISA = ('My::3::A'); |
90 | package My::3::C; |
91 | our @ISA = ('My::3::A', 'My::3::B'); |
92 | package My::3::D; |
93 | our @ISA = ('My::3::B', 'My::3::C'); |
94 | } |
95 | |
96 | is_deeply( |
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97 | [ My::3::D->meta->class_precedence_list ], |
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98 | [ 'My::3::D', 'My::3::B', 'My::3::A', 'My::3::C', 'My::3::A', 'My::3::B', 'My::3::A' ], |
99 | '... My::3::D->meta->class_precedence_list == (D B A C A B A)'); |
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100 | |
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101 | is_deeply( |
102 | [ My::3::D->meta->linearized_isa ], |
103 | [ 'My::3::D', 'My::3::B', 'My::3::A', 'My::3::C' ], |
104 | '... My::3::D->meta->linearized_isa == (D B A C B)'); |
105 | |
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106 | =pod |
107 | |
108 | Test all the class_precedence_lists |
109 | using Perl's own dispatcher to check |
110 | against. |
111 | |
112 | =cut |
113 | |
114 | my @CLASS_PRECEDENCE_LIST; |
115 | |
116 | { |
117 | package Foo; |
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118 | use metaclass; |
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119 | |
120 | sub CPL { push @CLASS_PRECEDENCE_LIST => 'Foo' } |
121 | |
122 | package Bar; |
123 | our @ISA = ('Foo'); |
124 | |
125 | sub CPL { |
126 | push @CLASS_PRECEDENCE_LIST => 'Bar'; |
127 | $_[0]->SUPER::CPL(); |
128 | } |
129 | |
130 | package Baz; |
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131 | use metaclass; |
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132 | our @ISA = ('Bar'); |
133 | |
134 | sub CPL { |
135 | push @CLASS_PRECEDENCE_LIST => 'Baz'; |
136 | $_[0]->SUPER::CPL(); |
137 | } |
138 | |
139 | package Foo::Bar; |
140 | our @ISA = ('Baz'); |
141 | |
142 | sub CPL { |
143 | push @CLASS_PRECEDENCE_LIST => 'Foo::Bar'; |
144 | $_[0]->SUPER::CPL(); |
145 | } |
146 | |
147 | package Foo::Bar::Baz; |
148 | our @ISA = ('Foo::Bar'); |
149 | |
150 | sub CPL { |
151 | push @CLASS_PRECEDENCE_LIST => 'Foo::Bar::Baz'; |
152 | $_[0]->SUPER::CPL(); |
153 | } |
154 | |
155 | } |
156 | |
157 | Foo::Bar::Baz->CPL(); |
158 | |
159 | is_deeply( |
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160 | [ Foo::Bar::Baz->meta->class_precedence_list ], |
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161 | [ @CLASS_PRECEDENCE_LIST ], |
162 | '... Foo::Bar::Baz->meta->class_precedence_list == @CLASS_PRECEDENCE_LIST'); |
163 | |