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For 01.HTTP.t
  Run on Tue May 4 15:25:55 2010
Reported on Tue May 4 15:26:05 2010

File /usr/local/lib/perl5/site_perl/5.10.1/darwin-2level/Moose/Meta/Role.pm
Statements Executed 99
Statement Execution Time 3.39ms
Subroutines — ordered by exclusive time
Calls P F Exclusive
Time
Inclusive
Time
Subroutine
1111.58ms2.97msMoose::Meta::Role::::BEGIN@17Moose::Meta::Role::BEGIN@17
111309µs985µsMoose::Meta::Role::::BEGIN@19Moose::Meta::Role::BEGIN@19
111259µs789µsMoose::Meta::Role::::BEGIN@20Moose::Meta::Role::BEGIN@20
111189µs299µsMoose::Meta::Role::::BEGIN@18Moose::Meta::Role::BEGIN@18
11115µs18µsMoose::Meta::Role::::BEGIN@4Moose::Meta::Role::BEGIN@4
11113µs34µsMoose::Meta::Role::::BEGIN@559Moose::Meta::Role::BEGIN@559
11112µs26µsMoose::Meta::Role::::BEGIN@544Moose::Meta::Role::BEGIN@544
11111µs68µsMoose::Meta::Role::::BEGIN@8Moose::Meta::Role::BEGIN@8
11110µs35µsMoose::Meta::Role::::BEGIN@523Moose::Meta::Role::BEGIN@523
1118µs251µsMoose::Meta::Role::::BEGIN@10Moose::Meta::Role::BEGIN@10
1118µs34µsMoose::Meta::Role::::BEGIN@9Moose::Meta::Role::BEGIN@9
1117µs158µsMoose::Meta::Role::::BEGIN@6Moose::Meta::Role::BEGIN@6
1117µs17µsMoose::Meta::Role::::BEGIN@5Moose::Meta::Role::BEGIN@5
1117µs136µsMoose::Meta::Role::::BEGIN@21Moose::Meta::Role::BEGIN@21
1117µs75µsMoose::Meta::Role::::BEGIN@23Moose::Meta::Role::BEGIN@23
1116µs6µsMoose::Meta::Role::::BEGIN@16Moose::Meta::Role::BEGIN@16
0000s0sMoose::Meta::Role::::DESTROYMoose::Meta::Role::DESTROY
0000s0sMoose::Meta::Role::::__ANON__[:100]Moose::Meta::Role::__ANON__[:100]
0000s0sMoose::Meta::Role::::__ANON__[:105]Moose::Meta::Role::__ANON__[:105]
0000s0sMoose::Meta::Role::::__ANON__[:110]Moose::Meta::Role::__ANON__[:110]
0000s0sMoose::Meta::Role::::__ANON__[:115]Moose::Meta::Role::__ANON__[:115]
0000s0sMoose::Meta::Role::::__ANON__[:256]Moose::Meta::Role::__ANON__[:256]
0000s0sMoose::Meta::Role::::__ANON__[:265]Moose::Meta::Role::__ANON__[:265]
0000s0sMoose::Meta::Role::::__ANON__[:273]Moose::Meta::Role::__ANON__[:273]
0000s0sMoose::Meta::Role::::__ANON__[:292]Moose::Meta::Role::__ANON__[:292]
0000s0sMoose::Meta::Role::::__ANON__[:301]Moose::Meta::Role::__ANON__[:301]
0000s0sMoose::Meta::Role::::__ANON__[:352]Moose::Meta::Role::__ANON__[:352]
0000s0sMoose::Meta::Role::::__ANON__[:482]Moose::Meta::Role::__ANON__[:482]
0000s0sMoose::Meta::Role::::__ANON__[:83]Moose::Meta::Role::__ANON__[:83]
0000s0sMoose::Meta::Role::::__ANON__[:90]Moose::Meta::Role::__ANON__[:90]
0000s0sMoose::Meta::Role::::__ANON__[:95]Moose::Meta::Role::__ANON__[:95]
0000s0sMoose::Meta::Role::::_attach_attributeMoose::Meta::Role::_attach_attribute
0000s0sMoose::Meta::Role::::_role_for_combinationMoose::Meta::Role::_role_for_combination
0000s0sMoose::Meta::Role::::add_attributeMoose::Meta::Role::add_attribute
0000s0sMoose::Meta::Role::::add_conflicting_methodMoose::Meta::Role::add_conflicting_method
0000s0sMoose::Meta::Role::::add_override_method_modifierMoose::Meta::Role::add_override_method_modifier
0000s0sMoose::Meta::Role::::add_required_methodsMoose::Meta::Role::add_required_methods
0000s0sMoose::Meta::Role::::add_roleMoose::Meta::Role::add_role
0000s0sMoose::Meta::Role::::alias_methodMoose::Meta::Role::alias_method
0000s0sMoose::Meta::Role::::applyMoose::Meta::Role::apply
0000s0sMoose::Meta::Role::::calculate_all_rolesMoose::Meta::Role::calculate_all_roles
0000s0sMoose::Meta::Role::::combineMoose::Meta::Role::combine
0000s0sMoose::Meta::Role::::composition_class_rolesMoose::Meta::Role::composition_class_roles
0000s0sMoose::Meta::Role::::createMoose::Meta::Role::create
0000s0sMoose::Meta::Role::::create_anon_roleMoose::Meta::Role::create_anon_role
0000s0sMoose::Meta::Role::::does_roleMoose::Meta::Role::does_role
0000s0sMoose::Meta::Role::::find_method_by_nameMoose::Meta::Role::find_method_by_name
0000s0sMoose::Meta::Role::::get_method_modifier_listMoose::Meta::Role::get_method_modifier_list
0000s0sMoose::Meta::Role::::get_override_method_modifierMoose::Meta::Role::get_override_method_modifier
0000s0sMoose::Meta::Role::::has_override_method_modifierMoose::Meta::Role::has_override_method_modifier
0000s0sMoose::Meta::Role::::initializeMoose::Meta::Role::initialize
0000s0sMoose::Meta::Role::::is_anon_roleMoose::Meta::Role::is_anon_role
0000s0sMoose::Meta::Role::::reinitializeMoose::Meta::Role::reinitialize
0000s0sMoose::Meta::Role::::reset_package_cache_flagMoose::Meta::Role::reset_package_cache_flag
0000s0sMoose::Meta::Role::::update_package_cache_flagMoose::Meta::Role::update_package_cache_flag
Call graph for these subroutines as a Graphviz dot language file.
Line State
ments
Time
on line
Calls Time
in subs
Code
1
2package Moose::Meta::Role;
3
4322µs221µs
# spent 18µs (15+3) within Moose::Meta::Role::BEGIN@4 which was called # once (15µs+3µs) by Moose::BEGIN@26 at line 4
use strict;
# spent 18µs making 1 call to Moose::Meta::Role::BEGIN@4 # spent 3µs making 1 call to strict::import
5320µs227µs
# spent 17µs (7+10) within Moose::Meta::Role::BEGIN@5 which was called # once (7µs+10µs) by Moose::BEGIN@26 at line 5
use warnings;
# spent 17µs making 1 call to Moose::Meta::Role::BEGIN@5 # spent 10µs making 1 call to warnings::import
6337µs2310µs
# spent 158µs (7+151) within Moose::Meta::Role::BEGIN@6 which was called # once (7µs+151µs) by Moose::BEGIN@26 at line 6
use metaclass;
# spent 158µs making 1 call to Moose::Meta::Role::BEGIN@6 # spent 151µs making 1 call to metaclass::import
7
8329µs2126µs
# spent 68µs (11+57) within Moose::Meta::Role::BEGIN@8 which was called # once (11µs+57µs) by Moose::BEGIN@26 at line 8
use Scalar::Util 'blessed';
# spent 68µs making 1 call to Moose::Meta::Role::BEGIN@8 # spent 57µs making 1 call to Exporter::import
9324µs261µs
# spent 34µs (8+26) within Moose::Meta::Role::BEGIN@9 which was called # once (8µs+26µs) by Moose::BEGIN@26 at line 9
use Carp 'confess';
# spent 34µs making 1 call to Moose::Meta::Role::BEGIN@9 # spent 26µs making 1 call to Exporter::import
10351µs2494µs
# spent 251µs (8+243) within Moose::Meta::Role::BEGIN@10 which was called # once (8µs+243µs) by Moose::BEGIN@26 at line 10
use Devel::GlobalDestruction 'in_global_destruction';
# spent 251µs making 1 call to Moose::Meta::Role::BEGIN@10 # spent 243µs making 1 call to Sub::Exporter::__ANON__[Sub/Exporter.pm:756]
11
1211µsour $VERSION = '0.98';
13131µs$VERSION = eval $VERSION;
141800nsour $AUTHORITY = 'cpan:STEVAN';
15
16321µs16µs
# spent 6µs within Moose::Meta::Role::BEGIN@16 which was called # once (6µs+0s) by Moose::BEGIN@26 at line 16
use Moose::Meta::Class;
# spent 6µs making 1 call to Moose::Meta::Role::BEGIN@16
173594µs12.97ms
# spent 2.97ms (1.58+1.39) within Moose::Meta::Role::BEGIN@17 which was called # once (1.58ms+1.39ms) by Moose::BEGIN@26 at line 17
use Moose::Meta::Role::Attribute;
# spent 2.97ms making 1 call to Moose::Meta::Role::BEGIN@17
18399µs1299µs
# spent 299µs (189+110) within Moose::Meta::Role::BEGIN@18 which was called # once (189µs+110µs) by Moose::BEGIN@26 at line 18
use Moose::Meta::Role::Method;
# spent 299µs making 1 call to Moose::Meta::Role::BEGIN@18
19396µs1985µs
# spent 985µs (309+676) within Moose::Meta::Role::BEGIN@19 which was called # once (309µs+676µs) by Moose::BEGIN@26 at line 19
use Moose::Meta::Role::Method::Required;
# spent 985µs making 1 call to Moose::Meta::Role::BEGIN@19
203102µs1789µs
# spent 789µs (259+530) within Moose::Meta::Role::BEGIN@20 which was called # once (259µs+530µs) by Moose::BEGIN@26 at line 20
use Moose::Meta::Role::Method::Conflicting;
# spent 789µs making 1 call to Moose::Meta::Role::BEGIN@20
21328µs2265µs
# spent 136µs (7+129) within Moose::Meta::Role::BEGIN@21 which was called # once (7µs+129µs) by Moose::BEGIN@26 at line 21
use Moose::Util qw( ensure_all_roles );
# spent 136µs making 1 call to Moose::Meta::Role::BEGIN@21 # spent 129µs making 1 call to Sub::Exporter::__ANON__[Sub/Exporter.pm:756]
22
2331.59ms2143µs
# spent 75µs (7+68) within Moose::Meta::Role::BEGIN@23 which was called # once (7µs+68µs) by Moose::BEGIN@26 at line 23
use base 'Class::MOP::Module', 'Class::MOP::Mixin::HasAttributes';
# spent 75µs making 1 call to Moose::Meta::Role::BEGIN@23 # spent 68µs making 1 call to base::import
24
25## ------------------------------------------------------------------
26## NOTE:
27## I normally don't do this, but I am doing
28## a whole bunch of meta-programmin in this
29## module, so it just makes sense. For a clearer
30## picture of what is going on in the next
31## several lines of code, look at the really
32## big comment at the end of this file (right
33## before the POD).
34## - SL
35## ------------------------------------------------------------------
36
3713µs127µsmy $META = __PACKAGE__->meta;
# spent 27µs making 1 call to Moose::Meta::Role::meta
38
39## ------------------------------------------------------------------
40## attributes ...
41
42# NOTE:
43# since roles are lazy, we hold all the attributes
44# of the individual role in 'statis' until which
45# time when it is applied to a class. This means
46# keeping a lot of things in hash maps, so we are
47# using a little of that meta-programmin' magic
48# here an saving lots of extra typin. And since
49# many of these attributes above require similar
50# functionality to support them, so we again use
51# the wonders of meta-programmin' to deliver a
52# very compact solution to this normally verbose
53# problem.
54# - SL
55
56117µsforeach my $action (
57 {
58 name => 'excluded_roles_map',
59 attr_reader => 'get_excluded_roles_map' ,
60 methods => {
61 add => 'add_excluded_roles',
62 get_keys => 'get_excluded_roles_list',
63 existence => 'excludes_role',
64 }
65 },
66 {
67 name => 'required_methods',
68 attr_reader => 'get_required_methods_map',
69 methods => {
70 remove => 'remove_required_methods',
71 get_values => 'get_required_method_list',
72 existence => 'requires_method',
73 }
74 },
75) {
76
7723µs my $attr_reader = $action->{attr_reader};
782800ns my $methods = $action->{methods};
79
80 # create the attribute
81 $META->add_attribute($action->{name} => (
82 reader => $attr_reader,
83 default => sub { {} }
84210µs2890µs ));
# spent 890µs making 2 calls to Class::MOP::Mixin::HasAttributes::add_attribute, avg 445µs/call
85
86 # create some helper methods
87 $META->add_method($methods->{add} => sub {
88 my ($self, @values) = @_;
89 $self->$attr_reader->{$_} = undef foreach @values;
9029µs150µs }) if exists $methods->{add};
# spent 50µs making 1 call to Class::MOP::Mixin::HasMethods::add_method
91
92 $META->add_method($methods->{get_keys} => sub {
93 my ($self) = @_;
94 keys %{$self->$attr_reader};
9527µs148µs }) if exists $methods->{get_keys};
# spent 48µs making 1 call to Class::MOP::Mixin::HasMethods::add_method
96
97 $META->add_method($methods->{get_values} => sub {
98 my ($self) = @_;
99 values %{$self->$attr_reader};
100210µs149µs }) if exists $methods->{get_values};
# spent 49µs making 1 call to Class::MOP::Mixin::HasMethods::add_method
101
102 $META->add_method($methods->{get} => sub {
103 my ($self, $name) = @_;
104 $self->$attr_reader->{$name}
10521µs }) if exists $methods->{get};
106
107 $META->add_method($methods->{existence} => sub {
108 my ($self, $name) = @_;
109 exists $self->$attr_reader->{$name} ? 1 : 0;
110216µs293µs }) if exists $methods->{existence};
# spent 93µs making 2 calls to Class::MOP::Mixin::HasMethods::add_method, avg 46µs/call
111
112 $META->add_method($methods->{remove} => sub {
113 my ($self, @values) = @_;
114 delete $self->$attr_reader->{$_} foreach @values;
115213µs151µs }) if exists $methods->{remove};
# spent 51µs making 1 call to Class::MOP::Mixin::HasMethods::add_method
116}
117
118$META->add_attribute(
11913µs1291µs 'method_metaclass',
# spent 291µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
120 reader => 'method_metaclass',
121 default => 'Moose::Meta::Role::Method',
122);
123
12412µs1252µs$META->add_attribute(
# spent 252µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
125 'required_method_metaclass',
126 reader => 'required_method_metaclass',
127 default => 'Moose::Meta::Role::Method::Required',
128);
129
13011µs1250µs$META->add_attribute(
# spent 250µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
131 'conflicting_method_metaclass',
132 reader => 'conflicting_method_metaclass',
133 default => 'Moose::Meta::Role::Method::Conflicting',
134);
135
13612µs1345µs$META->add_attribute(
# spent 345µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
137 'application_to_class_class',
138 reader => 'application_to_class_class',
139 default => 'Moose::Meta::Role::Application::ToClass',
140);
141
14212µs1321µs$META->add_attribute(
# spent 321µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
143 'application_to_role_class',
144 reader => 'application_to_role_class',
145 default => 'Moose::Meta::Role::Application::ToRole',
146);
147
14812µs1280µs$META->add_attribute(
# spent 280µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
149 'application_to_instance_class',
150 reader => 'application_to_instance_class',
151 default => 'Moose::Meta::Role::Application::ToInstance',
152);
153
154# More or less copied from Moose::Meta::Class
155sub initialize {
156 my $class = shift;
157 my $pkg = shift;
158 return Class::MOP::get_metaclass_by_name($pkg)
159 || $class->SUPER::initialize(
160 $pkg,
161 'attribute_metaclass' => 'Moose::Meta::Role::Attribute',
162 @_
163 );
164}
165
166sub reinitialize {
167 my $self = shift;
168 my $pkg = shift;
169
170 my $meta = blessed $pkg ? $pkg : Class::MOP::class_of($pkg);
171
172 my %existing_classes;
173 if ($meta) {
174 %existing_classes = map { $_ => $meta->$_() } qw(
175 attribute_metaclass
176 method_metaclass
177 wrapped_method_metaclass
178 required_method_metaclass
179 conflicting_method_metaclass
180 application_to_class_class
181 application_to_role_class
182 application_to_instance_class
183 );
184 }
185
186 return $self->SUPER::reinitialize(
187 $pkg,
188 %existing_classes,
189 @_,
190 );
191}
192
193sub add_attribute {
194 my $self = shift;
195
196 if (blessed $_[0] && ! $_[0]->isa('Moose::Meta::Role::Attribute') ) {
197 my $class = ref $_[0];
198 Moose->throw_error( "Cannot add a $class as an attribute to a role" );
199 }
200
201 return $self->SUPER::add_attribute(@_);
202}
203
204sub _attach_attribute {
205 my ( $self, $attribute ) = @_;
206
207 $attribute->attach_to_role($self);
208}
209
210sub add_required_methods {
211 my $self = shift;
212
213 for (@_) {
214 my $method = $_;
215 if (!blessed($method)) {
216 $method = $self->required_method_metaclass->new(
217 name => $method,
218 );
219 }
220 $self->get_required_methods_map->{$method->name} = $method;
221 }
222}
223
224sub add_conflicting_method {
225 my $self = shift;
226
227 my $method;
228 if (@_ == 1 && blessed($_[0])) {
229 $method = shift;
230 }
231 else {
232 $method = $self->conflicting_method_metaclass->new(@_);
233 }
234
235 $self->add_required_methods($method);
236}
237
238## ------------------------------------------------------------------
239## method modifiers
240
241# NOTE:
242# the before/around/after method modifiers are
243# stored by name, but there can be many methods
244# then associated with that name. So again we have
245# lots of similar functionality, so we can do some
246# meta-programmin' and save some time.
247# - SL
248
24912µsforeach my $modifier_type (qw[ before around after ]) {
250
25134µs my $attr_reader = "get_${modifier_type}_method_modifiers_map";
252
253 # create the attribute ...
254 $META->add_attribute("${modifier_type}_method_modifiers" => (
255 reader => $attr_reader,
256 default => sub { {} }
257310µs3812µs ));
# spent 812µs making 3 calls to Class::MOP::Mixin::HasAttributes::add_attribute, avg 271µs/call
258
259 # and some helper methods ...
260 $META->add_method("get_${modifier_type}_method_modifiers" => sub {
261 my ($self, $method_name) = @_;
262 #return () unless exists $self->$attr_reader->{$method_name};
263 my $mm = $self->$attr_reader->{$method_name};
264 $mm ? @$mm : ();
265314µs385µs });
# spent 85µs making 3 calls to Class::MOP::Mixin::HasMethods::add_method, avg 28µs/call
266
267 $META->add_method("has_${modifier_type}_method_modifiers" => sub {
268 my ($self, $method_name) = @_;
269 # NOTE:
270 # for now we assume that if it exists,..
271 # it has at least one modifier in it
272 (exists $self->$attr_reader->{$method_name}) ? 1 : 0;
273312µs377µs });
# spent 77µs making 3 calls to Class::MOP::Mixin::HasMethods::add_method, avg 26µs/call
274
275 $META->add_method("add_${modifier_type}_method_modifier" => sub {
276 my ($self, $method_name, $method) = @_;
277
278 $self->$attr_reader->{$method_name} = []
279 unless exists $self->$attr_reader->{$method_name};
280
281 my $modifiers = $self->$attr_reader->{$method_name};
282
283 # NOTE:
284 # check to see that we aren't adding the
285 # same code twice. We err in favor of the
286 # first on here, this may not be as expected
287 foreach my $modifier (@{$modifiers}) {
288 return if $modifier == $method;
289 }
290
291 push @{$modifiers} => $method;
292315µs382µs });
# spent 82µs making 3 calls to Class::MOP::Mixin::HasMethods::add_method, avg 27µs/call
293
294}
295
296## ------------------------------------------------------------------
297## override method mofidiers
298
299$META->add_attribute('override_method_modifiers' => (
300 reader => 'get_override_method_modifiers_map',
301 default => sub { {} }
30213µs1256µs));
# spent 256µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
303
304# NOTE:
305# these are a little different because there
306# can only be one per name, whereas the other
307# method modifiers can have multiples.
308# - SL
309
310sub add_override_method_modifier {
311 my ($self, $method_name, $method) = @_;
312 (!$self->has_method($method_name))
313 || Moose->throw_error("Cannot add an override of method '$method_name' " .
314 "because there is a local version of '$method_name'");
315 $self->get_override_method_modifiers_map->{$method_name} = $method;
316}
317
318sub has_override_method_modifier {
319 my ($self, $method_name) = @_;
320 # NOTE:
321 # for now we assume that if it exists,..
322 # it has at least one modifier in it
323 (exists $self->get_override_method_modifiers_map->{$method_name}) ? 1 : 0;
324}
325
326sub get_override_method_modifier {
327 my ($self, $method_name) = @_;
328 $self->get_override_method_modifiers_map->{$method_name};
329}
330
331## general list accessor ...
332
333sub get_method_modifier_list {
334 my ($self, $modifier_type) = @_;
335 my $accessor = "get_${modifier_type}_method_modifiers_map";
336 keys %{$self->$accessor};
337}
338
339sub reset_package_cache_flag { (shift)->{'_package_cache_flag'} = undef }
340sub update_package_cache_flag {
341 my $self = shift;
342 $self->{'_package_cache_flag'} = Class::MOP::check_package_cache_flag($self->name);
343}
344
345
346
347## ------------------------------------------------------------------
348## subroles
349
350$META->add_attribute('roles' => (
351 reader => 'get_roles',
352 default => sub { [] }
35313µs1280µs));
# spent 280µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
354
355sub add_role {
356 my ($self, $role) = @_;
357 (blessed($role) && $role->isa('Moose::Meta::Role'))
358 || Moose->throw_error("Roles must be instances of Moose::Meta::Role");
359 push @{$self->get_roles} => $role;
360 $self->reset_package_cache_flag;
361}
362
363sub calculate_all_roles {
364 my $self = shift;
365 my %seen;
366 grep {
367 !$seen{$_->name}++
368 } ($self, map {
369 $_->calculate_all_roles
370 } @{ $self->get_roles });
371}
372
373sub does_role {
374 my ($self, $role) = @_;
375 (defined $role)
376 || Moose->throw_error("You must supply a role name to look for");
377 my $role_name = blessed $role ? $role->name : $role;
378 # if we are it,.. then return true
379 return 1 if $role_name eq $self->name;
380 # otherwise.. check our children
381 foreach my $role (@{$self->get_roles}) {
382 return 1 if $role->does_role($role_name);
383 }
384 return 0;
385}
386
387sub find_method_by_name { (shift)->get_method(@_) }
388
389sub alias_method {
390 Carp::cluck("The alias_method method is deprecated. Use add_method instead.\n");
391
392 my $self = shift;
393
394 $self->add_method(@_);
395}
396
397## ------------------------------------------------------------------
398## role construction
399## ------------------------------------------------------------------
400
401sub apply {
402 my ($self, $other, @args) = @_;
403
404 (blessed($other))
405 || Moose->throw_error("You must pass in an blessed instance");
406
407 my $application_class;
408 if ($other->isa('Moose::Meta::Role')) {
409 $application_class = $self->application_to_role_class;
410 }
411 elsif ($other->isa('Moose::Meta::Class')) {
412 $application_class = $self->application_to_class_class;
413 }
414 else {
415 $application_class = $self->application_to_instance_class;
416 }
417
418 Class::MOP::load_class($application_class);
419 return $application_class->new(@args)->apply($self, $other);
420}
421
422sub composition_class_roles { }
423
424sub combine {
425 my ($class, @role_specs) = @_;
426
427 require Moose::Meta::Role::Composite;
428
429 my (@roles, %role_params);
430 while (@role_specs) {
431 my ($role, $params) = @{ splice @role_specs, 0, 1 };
432 my $requested_role
433 = blessed $role
434 ? $role
435 : Class::MOP::class_of($role);
436
437 my $actual_role = $requested_role->_role_for_combination($params);
438 push @roles => $actual_role;
439
440 next unless defined $params;
441 $role_params{$actual_role->name} = $params;
442 }
443
444 my $c = Moose::Meta::Role::Composite->new(roles => \@roles);
445 return $c->apply_params(\%role_params);
446}
447
448sub _role_for_combination {
449 my ($self, $params) = @_;
450 return $self;
451}
452
453sub create {
454 my ( $role, $package_name, %options ) = @_;
455
456 $options{package} = $package_name;
457
458 (ref $options{attributes} eq 'HASH')
459 || confess "You must pass a HASH ref of attributes"
460 if exists $options{attributes};
461
462 (ref $options{methods} eq 'HASH')
463 || confess "You must pass a HASH ref of methods"
464 if exists $options{methods};
465
466 my (%initialize_options) = %options;
467 delete @initialize_options{qw(
468 package
469 attributes
470 methods
471 version
472 authority
473 )};
474
475 my $meta = $role->initialize( $package_name => %initialize_options );
476
477 $meta->_instantiate_module( $options{version}, $options{authority} );
478
479 # FIXME totally lame
480 $meta->add_method('meta' => sub {
481 $role->initialize(ref($_[0]) || $_[0]);
482 });
483
484 if (exists $options{attributes}) {
485 foreach my $attribute_name (keys %{$options{attributes}}) {
486 my $attr = $options{attributes}->{$attribute_name};
487 $meta->add_attribute(
488 $attribute_name => blessed $attr ? $attr : %{$attr} );
489 }
490 }
491
492 if (exists $options{methods}) {
493 foreach my $method_name (keys %{$options{methods}}) {
494 $meta->add_method($method_name, $options{methods}->{$method_name});
495 }
496 }
497
498 Class::MOP::weaken_metaclass($meta->name)
499 if $meta->is_anon_role;
500
501 return $meta;
502}
503
504# anonymous roles. most of it is copied straight out of Class::MOP::Class.
505# an intrepid hacker might find great riches if he unifies this code with that
506# code in Class::MOP::Module or Class::MOP::Package
507{
508 # NOTE:
509 # this should be sufficient, if you have a
510 # use case where it is not, write a test and
511 # I will change it.
5122500ns my $ANON_ROLE_SERIAL = 0;
513
514 # NOTE:
515 # we need a sufficiently annoying prefix
516 # this should suffice for now, this is
517 # used in a couple of places below, so
518 # need to put it up here for now.
5191600ns my $ANON_ROLE_PREFIX = 'Moose::Meta::Role::__ANON__::SERIAL::';
520
521 sub is_anon_role {
522 my $self = shift;
5233119µs261µs
# spent 35µs (10+25) within Moose::Meta::Role::BEGIN@523 which was called # once (10µs+25µs) by Moose::BEGIN@26 at line 523
no warnings 'uninitialized';
# spent 35µs making 1 call to Moose::Meta::Role::BEGIN@523 # spent 25µs making 1 call to warnings::unimport
524 $self->name =~ /^$ANON_ROLE_PREFIX/;
525 }
526
527 sub create_anon_role {
528 my ($role, %options) = @_;
529 my $package_name = $ANON_ROLE_PREFIX . ++$ANON_ROLE_SERIAL;
530 return $role->create($package_name, %options);
531 }
532
533 # NOTE:
534 # this will only get called for
535 # anon-roles, all other calls
536 # are assumed to occur during
537 # global destruction and so don't
538 # really need to be handled explicitly
539 sub DESTROY {
540 my $self = shift;
541
542 return if in_global_destruction(); # it'll happen soon anyway and this just makes things more complicated
543
5443116µs240µs
# spent 26µs (12+14) within Moose::Meta::Role::BEGIN@544 which was called # once (12µs+14µs) by Moose::BEGIN@26 at line 544
no warnings 'uninitialized';
# spent 26µs making 1 call to Moose::Meta::Role::BEGIN@544 # spent 14µs making 1 call to warnings::unimport
545 return unless $self->name =~ /^$ANON_ROLE_PREFIX/;
546
547 # XXX: is this necessary for us? I don't understand what it's doing
548 # -sartak
549
550 # Moose does a weird thing where it replaces the metaclass for
551 # class when fixing metaclass incompatibility. In that case,
552 # we don't want to clean out the namespace now. We can detect
553 # that because Moose will explicitly update the singleton
554 # cache in Class::MOP.
555 #my $current_meta = Class::MOP::get_metaclass_by_name($self->name);
556 #return if $current_meta ne $self;
557
558 my ($serial_id) = ($self->name =~ /^$ANON_ROLE_PREFIX(\d+)/);
5593168µs255µs
# spent 34µs (13+21) within Moose::Meta::Role::BEGIN@559 which was called # once (13µs+21µs) by Moose::BEGIN@26 at line 559
no strict 'refs';
# spent 34µs making 1 call to Moose::Meta::Role::BEGIN@559 # spent 21µs making 1 call to strict::unimport
560 foreach my $key (keys %{$ANON_ROLE_PREFIX . $serial_id}) {
561 delete ${$ANON_ROLE_PREFIX . $serial_id}{$key};
562 }
563 delete ${'main::' . $ANON_ROLE_PREFIX}{$serial_id . '::'};
564 }
565}
566
567#####################################################################
568## NOTE:
569## This is Moose::Meta::Role as defined by Moose (plus the use of
570## MooseX::AttributeHelpers module). It is here as a reference to
571## make it easier to see what is happening above with all the meta
572## programming. - SL
573#####################################################################
574#
575# has 'roles' => (
576# metaclass => 'Array',
577# reader => 'get_roles',
578# isa => 'ArrayRef[Moose::Meta::Role]',
579# default => sub { [] },
580# provides => {
581# 'push' => 'add_role',
582# }
583# );
584#
585# has 'excluded_roles_map' => (
586# metaclass => 'Hash',
587# reader => 'get_excluded_roles_map',
588# isa => 'HashRef[Str]',
589# provides => {
590# # Not exactly set, cause it sets multiple
591# 'set' => 'add_excluded_roles',
592# 'keys' => 'get_excluded_roles_list',
593# 'exists' => 'excludes_role',
594# }
595# );
596#
597# has 'required_methods' => (
598# metaclass => 'Hash',
599# reader => 'get_required_methods_map',
600# isa => 'HashRef[Moose::Meta::Role::Method::Required]',
601# provides => {
602# # not exactly set, or delete since it works for multiple
603# 'set' => 'add_required_methods',
604# 'delete' => 'remove_required_methods',
605# 'keys' => 'get_required_method_list',
606# 'exists' => 'requires_method',
607# }
608# );
609#
610# # the before, around and after modifiers are
611# # HASH keyed by method-name, with ARRAY of
612# # CODE refs to apply in that order
613#
614# has 'before_method_modifiers' => (
615# metaclass => 'Hash',
616# reader => 'get_before_method_modifiers_map',
617# isa => 'HashRef[ArrayRef[CodeRef]]',
618# provides => {
619# 'keys' => 'get_before_method_modifiers',
620# 'exists' => 'has_before_method_modifiers',
621# # This actually makes sure there is an
622# # ARRAY at the given key, and pushed onto
623# # it. It also checks for duplicates as well
624# # 'add' => 'add_before_method_modifier'
625# }
626# );
627#
628# has 'after_method_modifiers' => (
629# metaclass => 'Hash',
630# reader =>'get_after_method_modifiers_map',
631# isa => 'HashRef[ArrayRef[CodeRef]]',
632# provides => {
633# 'keys' => 'get_after_method_modifiers',
634# 'exists' => 'has_after_method_modifiers',
635# # This actually makes sure there is an
636# # ARRAY at the given key, and pushed onto
637# # it. It also checks for duplicates as well
638# # 'add' => 'add_after_method_modifier'
639# }
640# );
641#
642# has 'around_method_modifiers' => (
643# metaclass => 'Hash',
644# reader =>'get_around_method_modifiers_map',
645# isa => 'HashRef[ArrayRef[CodeRef]]',
646# provides => {
647# 'keys' => 'get_around_method_modifiers',
648# 'exists' => 'has_around_method_modifiers',
649# # This actually makes sure there is an
650# # ARRAY at the given key, and pushed onto
651# # it. It also checks for duplicates as well
652# # 'add' => 'add_around_method_modifier'
653# }
654# );
655#
656# # override is similar to the other modifiers
657# # except that it is not an ARRAY of code refs
658# # but instead just a single name->code mapping
659#
660# has 'override_method_modifiers' => (
661# metaclass => 'Hash',
662# reader =>'get_override_method_modifiers_map',
663# isa => 'HashRef[CodeRef]',
664# provides => {
665# 'keys' => 'get_override_method_modifier',
666# 'exists' => 'has_override_method_modifier',
667# 'add' => 'add_override_method_modifier', # checks for local method ..
668# }
669# );
670#
671#####################################################################
672
673
674176µs1;
675
676__END__
677
678=pod
679
680=head1 NAME
681
682Moose::Meta::Role - The Moose Role metaclass
683
684=head1 DESCRIPTION
685
686This class is a subclass of L<Class::MOP::Module> that provides
687additional Moose-specific functionality.
688
689It's API looks a lot like L<Moose::Meta::Class>, but internally it
690implements many things differently. This may change in the future.
691
692=head1 INHERITANCE
693
694C<Moose::Meta::Role> is a subclass of L<Class::MOP::Module>.
695
696=head1 METHODS
697
698=head2 Construction
699
700=over 4
701
702=item B<< Moose::Meta::Role->initialize($role_name) >>
703
704This method creates a new role object with the provided name.
705
706=item B<< Moose::Meta::Role->combine( [ $role => { ... } ], [ $role ], ... ) >>
707
708This method accepts a list of array references. Each array reference
709should contain a role name or L<Moose::Meta::Role> object as its first element. The second element is
710an optional hash reference. The hash reference can contain C<-excludes>
711and C<-alias> keys to control how methods are composed from the role.
712
713The return value is a new L<Moose::Meta::Role::Composite> that
714represents the combined roles.
715
716=item B<< $metarole->composition_class_roles >>
717
718When combining multiple roles using C<combine>, this method is used to obtain a
719list of role names to be applied to the L<Moose::Meta::Role::Composite>
720instance returned by C<combine>. The default implementation returns an empty
721list. Extensions that need to hook into role combination may wrap this method
722to return additional role names.
723
724=item B<< Moose::Meta::Role->create($name, %options) >>
725
726This method is identical to the L<Moose::Meta::Class> C<create>
727method.
728
729=item B<< Moose::Meta::Role->create_anon_role >>
730
731This method is identical to the L<Moose::Meta::Class>
732C<create_anon_class> method.
733
734=item B<< $metarole->is_anon_role >>
735
736Returns true if the role is an anonymous role.
737
738=back
739
740=head2 Role application
741
742=over 4
743
744=item B<< $metarole->apply( $thing, @options ) >>
745
746This method applies a role to the given C<$thing>. That can be another
747L<Moose::Meta::Role>, object, a L<Moose::Meta::Class> object, or a
748(non-meta) object instance.
749
750The options are passed directly to the constructor for the appropriate
751L<Moose::Meta::Role::Application> subclass.
752
753Note that this will apply the role even if the C<$thing> in question already
754C<does> this role. L<Moose::Util/does_role> is a convenient wrapper for
755finding out if role application is necessary.
756
757=back
758
759=head2 Roles and other roles
760
761=over 4
762
763=item B<< $metarole->get_roles >>
764
765This returns an array reference of roles which this role does. This
766list may include duplicates.
767
768=item B<< $metarole->calculate_all_roles >>
769
770This returns a I<unique> list of all roles that this role does, and
771all the roles that its roles do.
772
773=item B<< $metarole->does_role($role) >>
774
775Given a role I<name> or L<Moose::Meta::Role> object, returns true if this role
776does the given role.
777
778=item B<< $metarole->add_role($role) >>
779
780Given a L<Moose::Meta::Role> object, this adds the role to the list of
781roles that the role does.
782
783=item B<< $metarole->get_excluded_roles_list >>
784
785Returns a list of role names which this role excludes.
786
787=item B<< $metarole->excludes_role($role_name) >>
788
789Given a role I<name>, returns true if this role excludes the named
790role.
791
792=item B<< $metarole->add_excluded_roles(@role_names) >>
793
794Given one or more role names, adds those roles to the list of excluded
795roles.
796
797=back
798
799=head2 Methods
800
801The methods for dealing with a role's methods are all identical in API
802and behavior to the same methods in L<Class::MOP::Class>.
803
804=over 4
805
806=item B<< $metarole->method_metaclass >>
807
808Returns the method metaclass name for the role. This defaults to
809L<Moose::Meta::Role::Method>.
810
811=item B<< $metarole->get_method($name) >>
812
813=item B<< $metarole->has_method($name) >>
814
815=item B<< $metarole->add_method( $name, $body ) >>
816
817=item B<< $metarole->get_method_list >>
818
819=item B<< $metarole->find_method_by_name($name) >>
820
821These methods are all identical to the methods of the same name in
822L<Class::MOP::Package>
823
824=back
825
826=head2 Attributes
827
828As with methods, the methods for dealing with a role's attribute are
829all identical in API and behavior to the same methods in
830L<Class::MOP::Class>.
831
832However, attributes stored in this class are I<not> stored as
833objects. Rather, the attribute definition is stored as a hash
834reference. When a role is composed into a class, this hash reference
835is passed directly to the metaclass's C<add_attribute> method.
836
837This is quite likely to change in the future.
838
839=over 4
840
841=item B<< $metarole->get_attribute($attribute_name) >>
842
843=item B<< $metarole->has_attribute($attribute_name) >>
844
845=item B<< $metarole->get_attribute_list >>
846
847=item B<< $metarole->add_attribute($name, %options) >>
848
849=item B<< $metarole->remove_attribute($attribute_name) >>
850
851=back
852
853=head2 Required methods
854
855=over 4
856
857=item B<< $metarole->get_required_method_list >>
858
859Returns the list of methods required by the role.
860
861=item B<< $metarole->requires_method($name) >>
862
863Returns true if the role requires the named method.
864
865=item B<< $metarole->add_required_methods(@names) >>
866
867Adds the named methods to the role's list of required methods.
868
869=item B<< $metarole->remove_required_methods(@names) >>
870
871Removes the named methods from the role's list of required methods.
872
873=item B<< $metarole->add_conflicting_method(%params) >>
874
875Instantiate the parameters as a L<Moose::Meta::Role::Method::Conflicting>
876object, then add it to the required method list.
877
878=back
879
880=head2 Method modifiers
881
882These methods act like their counterparts in L<Class::MOP::Class> and
883L<Moose::Meta::Class>.
884
885However, method modifiers are simply stored internally, and are not
886applied until the role itself is applied to a class.
887
888=over 4
889
890=item B<< $metarole->add_after_method_modifier($method_name, $method) >>
891
892=item B<< $metarole->add_around_method_modifier($method_name, $method) >>
893
894=item B<< $metarole->add_before_method_modifier($method_name, $method) >>
895
896=item B<< $metarole->add_override_method_modifier($method_name, $method) >>
897
898These methods all add an appropriate modifier to the internal list of
899modifiers.
900
901=item B<< $metarole->has_after_method_modifiers >>
902
903=item B<< $metarole->has_around_method_modifiers >>
904
905=item B<< $metarole->has_before_method_modifiers >>
906
907=item B<< $metarole->has_override_method_modifier >>
908
909Return true if the role has any modifiers of the given type.
910
911=item B<< $metarole->get_after_method_modifiers($method_name) >>
912
913=item B<< $metarole->get_around_method_modifiers($method_name) >>
914
915=item B<< $metarole->get_before_method_modifiers($method_name) >>
916
917Given a method name, returns a list of the appropriate modifiers for
918that method.
919
920=item B<< $metarole->get_override_method_modifier($method_name) >>
921
922Given a method name, returns the override method modifier for that
923method, if it has one.
924
925=back
926
927=head2 Introspection
928
929=over 4
930
931=item B<< Moose::Meta::Role->meta >>
932
933This will return a L<Class::MOP::Class> instance for this class.
934
935=back
936
937=head1 BUGS
938
939See L<Moose/BUGS> for details on reporting bugs.
940
941=head1 AUTHOR
942
943Stevan Little E<lt>stevan@iinteractive.comE<gt>
944
945=head1 COPYRIGHT AND LICENSE
946
947Copyright 2006-2010 by Infinity Interactive, Inc.
948
949L<http://www.iinteractive.com>
950
951This library is free software; you can redistribute it and/or modify
952it under the same terms as Perl itself.
953
954=cut