File | /usr/local/lib/perl/5.10.0/Moose/Meta/Role/Application/ToRole.pm |
Statements Executed | 19 |
Total Time | 0.001152 seconds |
Calls | P | F | Exclusive Time |
Inclusive Time |
Subroutine |
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0 | 0 | 0 | 0s | 0s | BEGIN | Moose::Meta::Role::Application::ToRole::
0 | 0 | 0 | 0s | 0s | apply | Moose::Meta::Role::Application::ToRole::
0 | 0 | 0 | 0s | 0s | apply_attributes | Moose::Meta::Role::Application::ToRole::
0 | 0 | 0 | 0s | 0s | apply_method_modifiers | Moose::Meta::Role::Application::ToRole::
0 | 0 | 0 | 0s | 0s | apply_methods | Moose::Meta::Role::Application::ToRole::
0 | 0 | 0 | 0s | 0s | apply_override_method_modifiers | Moose::Meta::Role::Application::ToRole::
0 | 0 | 0 | 0s | 0s | check_required_attributes | Moose::Meta::Role::Application::ToRole::
0 | 0 | 0 | 0s | 0s | check_required_methods | Moose::Meta::Role::Application::ToRole::
0 | 0 | 0 | 0s | 0s | check_role_exclusions | Moose::Meta::Role::Application::ToRole::
Line | Stmts. | Exclusive Time | Avg. | Code |
---|---|---|---|---|
1 | package Moose::Meta::Role::Application::ToRole; | |||
2 | ||||
3 | 3 | 27µs | 9µs | use strict; # spent 9µs making 1 call to strict::import |
4 | 3 | 32µs | 10µs | use warnings; # spent 21µs making 1 call to warnings::import |
5 | 3 | 40µs | 13µs | use metaclass; # spent 813µs making 1 call to metaclass::import |
6 | ||||
7 | 3 | 72µs | 24µs | use Scalar::Util 'blessed'; # spent 46µs making 1 call to Exporter::import |
8 | ||||
9 | 1 | 800ns | 800ns | our $VERSION = '1.15'; |
10 | 1 | 29µs | 29µs | $VERSION = eval $VERSION; |
11 | 1 | 600ns | 600ns | our $AUTHORITY = 'cpan:STEVAN'; |
12 | ||||
13 | 3 | 942µs | 314µs | use base 'Moose::Meta::Role::Application'; # spent 63µs making 1 call to base::import |
14 | ||||
15 | sub apply { | |||
16 | my ($self, $role1, $role2) = @_; | |||
17 | $self->SUPER::apply($role1, $role2); | |||
18 | $role2->add_role($role1); | |||
19 | } | |||
20 | ||||
21 | sub check_role_exclusions { | |||
22 | my ($self, $role1, $role2) = @_; | |||
23 | if ( $role2->excludes_role($role1->name) ) { | |||
24 | require Moose; | |||
25 | Moose->throw_error("Conflict detected: " . $role2->name . " excludes role '" . $role1->name . "'"); | |||
26 | } | |||
27 | foreach my $excluded_role_name ($role1->get_excluded_roles_list) { | |||
28 | if ( $role2->does_role($excluded_role_name) ) { | |||
29 | require Moose; | |||
30 | Moose->throw_error("The class " . $role2->name . " does the excluded role '$excluded_role_name'"); | |||
31 | } | |||
32 | $role2->add_excluded_roles($excluded_role_name); | |||
33 | } | |||
34 | } | |||
35 | ||||
36 | sub check_required_methods { | |||
37 | my ($self, $role1, $role2) = @_; | |||
38 | foreach my $required_method ($role1->get_required_method_list) { | |||
39 | my $required_method_name = $required_method->name; | |||
40 | ||||
41 | next if $self->is_aliased_method($required_method_name); | |||
42 | ||||
43 | $role2->add_required_methods($required_method) | |||
44 | unless $role2->find_method_by_name($required_method_name); | |||
45 | } | |||
46 | } | |||
47 | ||||
48 | sub check_required_attributes { | |||
49 | ||||
50 | } | |||
51 | ||||
52 | sub apply_attributes { | |||
53 | my ($self, $role1, $role2) = @_; | |||
54 | foreach my $attribute_name ($role1->get_attribute_list) { | |||
55 | # it if it has one already | |||
56 | if ($role2->has_attribute($attribute_name) && | |||
57 | # make sure we haven't seen this one already too | |||
58 | $role2->get_attribute($attribute_name) != $role1->get_attribute($attribute_name)) { | |||
59 | ||||
60 | my $role2_name = $role2->name; | |||
61 | ||||
62 | require Moose; | |||
63 | Moose->throw_error( "Role '" | |||
64 | . $role1->name | |||
65 | . "' has encountered an attribute conflict" | |||
66 | . " while being composed into '$role2_name'." | |||
67 | . " This is a fatal error and cannot be disambiguated." | |||
68 | . " The conflicting attribute is named '$attribute_name'." ); | |||
69 | } | |||
70 | else { | |||
71 | $role2->add_attribute( | |||
72 | $role1->get_attribute($attribute_name)->clone | |||
73 | ); | |||
74 | } | |||
75 | } | |||
76 | } | |||
77 | ||||
78 | sub apply_methods { | |||
79 | my ( $self, $role1, $role2 ) = @_; | |||
80 | foreach my $method ( $role1->_get_local_methods ) { | |||
81 | ||||
82 | my $method_name = $method->name; | |||
83 | ||||
84 | next if $method->isa('Class::MOP::Method::Meta'); | |||
85 | ||||
86 | unless ( $self->is_method_excluded($method_name) ) { | |||
87 | ||||
88 | my $role2_method = $role2->get_method($method_name); | |||
89 | if ( $role2_method | |||
90 | && $role2_method->body != $method->body ) { | |||
91 | ||||
92 | # method conflicts between roles result in the method becoming | |||
93 | # a requirement | |||
94 | $role2->add_conflicting_method( | |||
95 | name => $method_name, | |||
96 | roles => [ $role1->name, $role2->name ], | |||
97 | ); | |||
98 | } | |||
99 | else { | |||
100 | $role2->add_method( | |||
101 | $method_name, | |||
102 | $method, | |||
103 | ); | |||
104 | } | |||
105 | } | |||
106 | ||||
107 | next unless $self->is_method_aliased($method_name); | |||
108 | ||||
109 | my $aliased_method_name = $self->get_method_aliases->{$method_name}; | |||
110 | ||||
111 | my $role2_method = $role2->get_method($aliased_method_name); | |||
112 | ||||
113 | if ( $role2_method | |||
114 | && $role2_method->body != $method->body ) { | |||
115 | ||||
116 | require Moose; | |||
117 | Moose->throw_error( | |||
118 | "Cannot create a method alias if a local method of the same name exists" | |||
119 | ); | |||
120 | } | |||
121 | ||||
122 | $role2->add_method( | |||
123 | $aliased_method_name, | |||
124 | $role1->get_method($method_name) | |||
125 | ); | |||
126 | ||||
127 | if ( !$role2->has_method($method_name) ) { | |||
128 | $role2->add_required_methods($method_name) | |||
129 | unless $self->is_method_excluded($method_name); | |||
130 | } | |||
131 | } | |||
132 | } | |||
133 | ||||
134 | sub apply_override_method_modifiers { | |||
135 | my ($self, $role1, $role2) = @_; | |||
136 | foreach my $method_name ($role1->get_method_modifier_list('override')) { | |||
137 | # it if it has one already then ... | |||
138 | if ($role2->has_method($method_name)) { | |||
139 | # if it is being composed into another role | |||
140 | # we have a conflict here, because you cannot | |||
141 | # combine an overridden method with a locally | |||
142 | # defined one | |||
143 | require Moose; | |||
144 | Moose->throw_error("Role '" . $role1->name . "' has encountered an 'override' method conflict " . | |||
145 | "during composition (A local method of the same name as been found). This " . | |||
146 | "is fatal error."); | |||
147 | } | |||
148 | else { | |||
149 | # if we are a role, we need to make sure | |||
150 | # we dont have a conflict with the role | |||
151 | # we are composing into | |||
152 | if ($role2->has_override_method_modifier($method_name) && | |||
153 | $role2->get_override_method_modifier($method_name) != $role2->get_override_method_modifier($method_name)) { | |||
154 | ||||
155 | require Moose; | |||
156 | Moose->throw_error("Role '" . $role1->name . "' has encountered an 'override' method conflict " . | |||
157 | "during composition (Two 'override' methods of the same name encountered). " . | |||
158 | "This is fatal error."); | |||
159 | } | |||
160 | else { | |||
161 | # if there is no conflict, | |||
162 | # just add it to the role | |||
163 | $role2->add_override_method_modifier( | |||
164 | $method_name, | |||
165 | $role1->get_override_method_modifier($method_name) | |||
166 | ); | |||
167 | } | |||
168 | } | |||
169 | } | |||
170 | } | |||
171 | ||||
172 | sub apply_method_modifiers { | |||
173 | my ($self, $modifier_type, $role1, $role2) = @_; | |||
174 | my $add = "add_${modifier_type}_method_modifier"; | |||
175 | my $get = "get_${modifier_type}_method_modifiers"; | |||
176 | foreach my $method_name ($role1->get_method_modifier_list($modifier_type)) { | |||
177 | $role2->$add( | |||
178 | $method_name, | |||
179 | $_ | |||
180 | ) foreach $role1->$get($method_name); | |||
181 | } | |||
182 | } | |||
183 | ||||
184 | ||||
185 | 1 | 9µs | 9µs | 1; |
186 | ||||
187 | __END__ | |||
188 | ||||
189 | =pod | |||
190 | ||||
191 | =head1 NAME | |||
192 | ||||
193 | Moose::Meta::Role::Application::ToRole - Compose a role into another role | |||
194 | ||||
195 | =head1 DESCRIPTION | |||
196 | ||||
197 | =head2 METHODS | |||
198 | ||||
199 | =over 4 | |||
200 | ||||
201 | =item B<new> | |||
202 | ||||
203 | =item B<meta> | |||
204 | ||||
205 | =item B<apply> | |||
206 | ||||
207 | =item B<check_role_exclusions> | |||
208 | ||||
209 | =item B<check_required_methods> | |||
210 | ||||
211 | =item B<check_required_attributes> | |||
212 | ||||
213 | =item B<apply_attributes> | |||
214 | ||||
215 | =item B<apply_methods> | |||
216 | ||||
217 | =item B<apply_method_modifiers> | |||
218 | ||||
219 | =item B<apply_override_method_modifiers> | |||
220 | ||||
221 | =back | |||
222 | ||||
223 | =head1 BUGS | |||
224 | ||||
225 | See L<Moose/BUGS> for details on reporting bugs. | |||
226 | ||||
227 | =head1 AUTHOR | |||
228 | ||||
229 | Stevan Little E<lt>stevan@iinteractive.comE<gt> | |||
230 | ||||
231 | =head1 COPYRIGHT AND LICENSE | |||
232 | ||||
233 | Copyright 2006-2010 by Infinity Interactive, Inc. | |||
234 | ||||
235 | L<http://www.iinteractive.com> | |||
236 | ||||
237 | This library is free software; you can redistribute it and/or modify | |||
238 | it under the same terms as Perl itself. | |||
239 | ||||
240 | =cut | |||
241 |