File | /usr/local/lib/perl/5.10.0/Moose/Meta/TypeConstraint/Role.pm |
Statements Executed | 23 |
Total Time | 0.0008055 seconds |
Calls | P | F | Exclusive Time |
Inclusive Time |
Subroutine |
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0 | 0 | 0 | 0s | 0s | BEGIN | Moose::Meta::TypeConstraint::Role::
0 | 0 | 0 | 0s | 0s | __ANON__[:36] | Moose::Meta::TypeConstraint::Role::
0 | 0 | 0 | 0s | 0s | _create_hand_optimized_type_constraint | Moose::Meta::TypeConstraint::Role::
0 | 0 | 0 | 0s | 0s | create_child_type | Moose::Meta::TypeConstraint::Role::
0 | 0 | 0 | 0s | 0s | equals | Moose::Meta::TypeConstraint::Role::
0 | 0 | 0 | 0s | 0s | is_a_type_of | Moose::Meta::TypeConstraint::Role::
0 | 0 | 0 | 0s | 0s | is_subtype_of | Moose::Meta::TypeConstraint::Role::
0 | 0 | 0 | 0s | 0s | new | Moose::Meta::TypeConstraint::Role::
0 | 0 | 0 | 0s | 0s | parents | Moose::Meta::TypeConstraint::Role::
Line | Stmts. | Exclusive Time | Avg. | Code |
---|---|---|---|---|
1 | package Moose::Meta::TypeConstraint::Role; | |||
2 | ||||
3 | 3 | 25µs | 8µs | use strict; # spent 10µs making 1 call to strict::import |
4 | 3 | 32µs | 11µs | use warnings; # spent 30µs making 1 call to warnings::import |
5 | 3 | 43µs | 14µs | use metaclass; # spent 824µs making 1 call to metaclass::import |
6 | ||||
7 | 3 | 30µs | 10µs | use Scalar::Util 'blessed'; # spent 46µs making 1 call to Exporter::import |
8 | 3 | 61µs | 20µs | use Moose::Util::TypeConstraints (); |
9 | ||||
10 | 1 | 700ns | 700ns | our $VERSION = '1.15'; |
11 | 1 | 27µs | 27µs | $VERSION = eval $VERSION; |
12 | 1 | 600ns | 600ns | our $AUTHORITY = 'cpan:STEVAN'; |
13 | ||||
14 | 3 | 564µs | 188µs | use base 'Moose::Meta::TypeConstraint'; # spent 78µs making 1 call to base::import |
15 | ||||
16 | 1 | 14µs | 14µs | __PACKAGE__->meta->add_attribute('role' => ( # spent 583µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 32µs making 1 call to Moose::Meta::TypeConstraint::Role::meta |
17 | reader => 'role', | |||
18 | )); | |||
19 | ||||
20 | sub new { | |||
21 | my ( $class, %args ) = @_; | |||
22 | ||||
23 | $args{parent} = Moose::Util::TypeConstraints::find_type_constraint('Object'); | |||
24 | my $self = $class->_new(\%args); | |||
25 | ||||
26 | $self->_create_hand_optimized_type_constraint; | |||
27 | $self->compile_type_constraint(); | |||
28 | ||||
29 | return $self; | |||
30 | } | |||
31 | ||||
32 | sub _create_hand_optimized_type_constraint { | |||
33 | my $self = shift; | |||
34 | my $role = $self->role; | |||
35 | $self->hand_optimized_type_constraint( | |||
36 | sub { Moose::Util::does_role($_[0], $role) } | |||
37 | ); | |||
38 | } | |||
39 | ||||
40 | sub parents { | |||
41 | my $self = shift; | |||
42 | return ( | |||
43 | $self->parent, | |||
44 | map { | |||
45 | # FIXME find_type_constraint might find a TC named after the role but that isn't really it | |||
46 | # I did this anyway since it's a convention that preceded TypeConstraint::Role, and it should DWIM | |||
47 | # if anybody thinks this problematic please discuss on IRC. | |||
48 | # a possible fix is to add by attr indexing to the type registry to find types of a certain property | |||
49 | # regardless of their name | |||
50 | Moose::Util::TypeConstraints::find_type_constraint($_) | |||
51 | || | |||
52 | __PACKAGE__->new( role => $_, name => "__ANON__" ) | |||
53 | } @{ Class::MOP::class_of($self->role)->get_roles }, | |||
54 | ); | |||
55 | } | |||
56 | ||||
57 | sub equals { | |||
58 | my ( $self, $type_or_name ) = @_; | |||
59 | ||||
60 | my $other = Moose::Util::TypeConstraints::find_type_constraint($type_or_name); | |||
61 | ||||
62 | return unless defined $other; | |||
63 | return unless $other->isa(__PACKAGE__); | |||
64 | ||||
65 | return $self->role eq $other->role; | |||
66 | } | |||
67 | ||||
68 | sub is_a_type_of { | |||
69 | my ($self, $type_or_name) = @_; | |||
70 | ||||
71 | my $type = Moose::Util::TypeConstraints::find_type_constraint($type_or_name); | |||
72 | ||||
73 | ($self->equals($type) || $self->is_subtype_of($type_or_name)); | |||
74 | } | |||
75 | ||||
76 | sub is_subtype_of { | |||
77 | my ($self, $type_or_name_or_role ) = @_; | |||
78 | ||||
79 | if ( not ref $type_or_name_or_role ) { | |||
80 | # it might be a role | |||
81 | return 1 if Class::MOP::class_of($self->role)->does_role( $type_or_name_or_role ); | |||
82 | } | |||
83 | ||||
84 | my $type = Moose::Util::TypeConstraints::find_type_constraint($type_or_name_or_role); | |||
85 | ||||
86 | return unless defined $type; | |||
87 | ||||
88 | if ( $type->isa(__PACKAGE__) ) { | |||
89 | # if $type_or_name_or_role isn't a role, it might be the TC name of another ::Role type | |||
90 | # or it could also just be a type object in this branch | |||
91 | return Class::MOP::class_of($self->role)->does_role( $type->role ); | |||
92 | } else { | |||
93 | # the only other thing we are a subtype of is Object | |||
94 | $self->SUPER::is_subtype_of($type); | |||
95 | } | |||
96 | } | |||
97 | ||||
98 | sub create_child_type { | |||
99 | my ($self, @args) = @_; | |||
100 | return Moose::Meta::TypeConstraint->new(@args, parent => $self); | |||
101 | } | |||
102 | ||||
103 | 1 | 8µs | 8µs | 1; |
104 | ||||
105 | __END__ | |||
106 | ||||
107 | =pod | |||
108 | ||||
109 | =head1 NAME | |||
110 | ||||
111 | Moose::Meta::TypeConstraint::Role - Role/TypeConstraint parallel hierarchy | |||
112 | ||||
113 | =head1 DESCRIPTION | |||
114 | ||||
115 | This class represents type constraints for a role. | |||
116 | ||||
117 | =head1 INHERITANCE | |||
118 | ||||
119 | C<Moose::Meta::TypeConstraint::Role> is a subclass of | |||
120 | L<Moose::Meta::TypeConstraint>. | |||
121 | ||||
122 | =head1 METHODS | |||
123 | ||||
124 | =over 4 | |||
125 | ||||
126 | =item B<< Moose::Meta::TypeConstraint::Role->new(%options) >> | |||
127 | ||||
128 | This creates a new role type constraint based on the given | |||
129 | C<%options>. | |||
130 | ||||
131 | It takes the same options as its parent, with two exceptions. First, | |||
132 | it requires an additional option, C<role>, which is name of the | |||
133 | constraint's role. Second, it automatically sets the parent to the | |||
134 | C<Object> type. | |||
135 | ||||
136 | The constructor also overrides the hand optimized type constraint with | |||
137 | one it creates internally. | |||
138 | ||||
139 | =item B<< $constraint->role >> | |||
140 | ||||
141 | Returns the role name associated with the constraint. | |||
142 | ||||
143 | =item B<< $constraint->parents >> | |||
144 | ||||
145 | Returns all the type's parent types, corresponding to the roles that | |||
146 | its role does. | |||
147 | ||||
148 | =item B<< $constraint->is_subtype_of($type_name_or_object) >> | |||
149 | ||||
150 | If the given type is also a role type, then this checks that the | |||
151 | type's role does the other type's role. | |||
152 | ||||
153 | Otherwise it falls back to the implementation in | |||
154 | L<Moose::Meta::TypeConstraint>. | |||
155 | ||||
156 | =item B<< $constraint->create_child_type(%options) >> | |||
157 | ||||
158 | This returns a new L<Moose::Meta::TypeConstraint> object with the type | |||
159 | as its parent. | |||
160 | ||||
161 | Note that it does I<not> return a C<Moose::Meta::TypeConstraint::Role> | |||
162 | object! | |||
163 | ||||
164 | =back | |||
165 | ||||
166 | =head1 BUGS | |||
167 | ||||
168 | See L<Moose/BUGS> for details on reporting bugs. | |||
169 | ||||
170 | =head1 AUTHOR | |||
171 | ||||
172 | Yuval Kogman E<lt>nothingmuch@cpan.orgE<gt> | |||
173 | ||||
174 | =head1 COPYRIGHT AND LICENSE | |||
175 | ||||
176 | Copyright 2006-2010 by Infinity Interactive, Inc. | |||
177 | ||||
178 | L<http://www.iinteractive.com> | |||
179 | ||||
180 | This library is free software; you can redistribute it and/or modify | |||
181 | it under the same terms as Perl itself. | |||
182 | ||||
183 | =cut |