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For t/test-parsing
  Run on Sun Nov 14 09:49:57 2010
Reported on Sun Nov 14 09:50:10 2010

File /usr/local/lib/perl/5.10.0/Moose/Meta/TypeConstraint/Role.pm
Statements Executed 23
Total Time 0.0008055 seconds
Subroutines — ordered by exclusive time
Calls P F Exclusive
Time
Inclusive
Time
Subroutine
0000s0sMoose::Meta::TypeConstraint::Role::::BEGINMoose::Meta::TypeConstraint::Role::BEGIN
0000s0sMoose::Meta::TypeConstraint::Role::::__ANON__[:36]Moose::Meta::TypeConstraint::Role::__ANON__[:36]
0000s0sMoose::Meta::TypeConstraint::Role::::_create_hand_optimized_type_constraintMoose::Meta::TypeConstraint::Role::_create_hand_optimized_type_constraint
0000s0sMoose::Meta::TypeConstraint::Role::::create_child_typeMoose::Meta::TypeConstraint::Role::create_child_type
0000s0sMoose::Meta::TypeConstraint::Role::::equalsMoose::Meta::TypeConstraint::Role::equals
0000s0sMoose::Meta::TypeConstraint::Role::::is_a_type_ofMoose::Meta::TypeConstraint::Role::is_a_type_of
0000s0sMoose::Meta::TypeConstraint::Role::::is_subtype_ofMoose::Meta::TypeConstraint::Role::is_subtype_of
0000s0sMoose::Meta::TypeConstraint::Role::::newMoose::Meta::TypeConstraint::Role::new
0000s0sMoose::Meta::TypeConstraint::Role::::parentsMoose::Meta::TypeConstraint::Role::parents
LineStmts.Exclusive
Time
Avg.Code
1package Moose::Meta::TypeConstraint::Role;
2
3325µs8µsuse strict;
# spent 10µs making 1 call to strict::import
4332µs11µsuse warnings;
# spent 30µs making 1 call to warnings::import
5343µs14µsuse metaclass;
# spent 824µs making 1 call to metaclass::import
6
7330µs10µsuse Scalar::Util 'blessed';
# spent 46µs making 1 call to Exporter::import
8361µs20µsuse Moose::Util::TypeConstraints ();
9
101700ns700nsour $VERSION = '1.15';
11127µs27µs$VERSION = eval $VERSION;
121600ns600nsour $AUTHORITY = 'cpan:STEVAN';
13
143564µs188µsuse base 'Moose::Meta::TypeConstraint';
# spent 78µs making 1 call to base::import
15
16114µs14µs__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
20sub 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
32sub _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
40sub 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
57sub 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 $other->role;
66}
67
68sub is_a_type_of {
69 my ($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
76sub 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
98sub create_child_type {
99 my ($self, @args) = @_;
100 return Moose::Meta::TypeConstraint->new(@args, parent => $self);
101}
102
10318µs8µs1;
104
105__END__
106
107=pod
108
109=head1 NAME
110
111Moose::Meta::TypeConstraint::Role - Role/TypeConstraint parallel hierarchy
112
113=head1 DESCRIPTION
114
115This class represents type constraints for a role.
116
117=head1 INHERITANCE
118
119C<Moose::Meta::TypeConstraint::Role> is a subclass of
120L<Moose::Meta::TypeConstraint>.
121
122=head1 METHODS
123
124=over 4
125
126=item B<< Moose::Meta::TypeConstraint::Role->new(%options) >>
127
128This creates a new role type constraint based on the given
129C<%options>.
130
131It takes the same options as its parent, with two exceptions. First,
132it requires an additional option, C<role>, which is name of the
133constraint's role. Second, it automatically sets the parent to the
134C<Object> type.
135
136The constructor also overrides the hand optimized type constraint with
137one it creates internally.
138
139=item B<< $constraint->role >>
140
141Returns the role name associated with the constraint.
142
143=item B<< $constraint->parents >>
144
145Returns all the type's parent types, corresponding to the roles that
146its role does.
147
148=item B<< $constraint->is_subtype_of($type_name_or_object) >>
149
150If the given type is also a role type, then this checks that the
151type's role does the other type's role.
152
153Otherwise it falls back to the implementation in
154L<Moose::Meta::TypeConstraint>.
155
156=item B<< $constraint->create_child_type(%options) >>
157
158This returns a new L<Moose::Meta::TypeConstraint> object with the type
159as its parent.
160
161Note that it does I<not> return a C<Moose::Meta::TypeConstraint::Role>
162object!
163
164=back
165
166=head1 BUGS
167
168See L<Moose/BUGS> for details on reporting bugs.
169
170=head1 AUTHOR
171
172Yuval Kogman E<lt>nothingmuch@cpan.orgE<gt>
173
174=head1 COPYRIGHT AND LICENSE
175
176Copyright 2006-2010 by Infinity Interactive, Inc.
177
178L<http://www.iinteractive.com>
179
180This library is free software; you can redistribute it and/or modify
181it under the same terms as Perl itself.
182
183=cut