Commit | Line | Data |
9a641848 |
1 | package Moose::Util; |
2 | |
9a641848 |
3 | use strict; |
4 | use warnings; |
5 | |
c01f48b7 |
6 | use Data::OptList; |
88e88a7b |
7 | use Params::Util qw( _STRING ); |
7125b244 |
8 | use Sub::Exporter; |
d7d8a8c7 |
9 | use Scalar::Util 'blessed'; |
d2782813 |
10 | use List::Util qw(first); |
11 | use List::MoreUtils qw(any all); |
5394a1c7 |
12 | use overload (); |
38bf2a25 |
13 | use Class::MOP; |
9a641848 |
14 | |
7125b244 |
15 | my @exports = qw[ |
d03bd989 |
16 | find_meta |
6532ca5a |
17 | does_role |
d03bd989 |
18 | search_class_by_role |
b099a649 |
19 | ensure_all_roles |
d7d8a8c7 |
20 | apply_all_roles |
d26f5671 |
21 | with_traits |
ab76842e |
22 | get_all_init_args |
23 | get_all_attribute_values |
a5e883ae |
24 | resolve_metatrait_alias |
25 | resolve_metaclass_alias |
5f71050b |
26 | add_method_modifier |
d939e016 |
27 | english_list |
27f2f43f |
28 | meta_attribute_alias |
29 | meta_class_alias |
7125b244 |
30 | ]; |
9a641848 |
31 | |
7125b244 |
32 | Sub::Exporter::setup_exporter({ |
33 | exports => \@exports, |
11065d1f |
34 | groups => { all => \@exports } |
7125b244 |
35 | }); |
36 | |
37 | ## some utils for the utils ... |
38 | |
56ea1a11 |
39 | sub find_meta { Class::MOP::class_of(@_) } |
9a641848 |
40 | |
7125b244 |
41 | ## the functions ... |
adf82331 |
42 | |
7125b244 |
43 | sub does_role { |
44 | my ($class_or_obj, $role) = @_; |
adf82331 |
45 | |
6532ca5a |
46 | my $meta = find_meta($class_or_obj); |
d03bd989 |
47 | |
7125b244 |
48 | return unless defined $meta; |
10a745f5 |
49 | return unless $meta->can('does_role'); |
7125b244 |
50 | return 1 if $meta->does_role($role); |
51 | return; |
9a641848 |
52 | } |
53 | |
1631b53f |
54 | sub search_class_by_role { |
560c498d |
55 | my ($class_or_obj, $role) = @_; |
d03bd989 |
56 | |
6532ca5a |
57 | my $meta = find_meta($class_or_obj); |
7125b244 |
58 | |
59 | return unless defined $meta; |
60 | |
560c498d |
61 | my $role_name = blessed $role ? $role->name : $role; |
62 | |
7125b244 |
63 | foreach my $class ($meta->class_precedence_list) { |
d03bd989 |
64 | |
65 | my $_meta = find_meta($class); |
1631b53f |
66 | |
7125b244 |
67 | next unless defined $_meta; |
68 | |
69 | foreach my $role (@{ $_meta->roles || [] }) { |
1631b53f |
70 | return $class if $role->name eq $role_name; |
71 | } |
72 | } |
73 | |
7125b244 |
74 | return; |
1631b53f |
75 | } |
76 | |
b099a649 |
77 | # this can possibly behave in unexpected ways because the roles being composed |
78 | # before being applied could differ from call to call; I'm not sure if or how |
79 | # to document this possible quirk. |
80 | sub ensure_all_roles { |
81 | my $applicant = shift; |
82 | _apply_all_roles($applicant, sub { !does_role($applicant, $_) }, @_); |
83 | } |
84 | |
d7d8a8c7 |
85 | sub apply_all_roles { |
86 | my $applicant = shift; |
8d4d1cdc |
87 | _apply_all_roles($applicant, undef, @_); |
b099a649 |
88 | } |
89 | |
90 | sub _apply_all_roles { |
91 | my $applicant = shift; |
92 | my $role_filter = shift; |
e606ae5f |
93 | |
70ea9161 |
94 | unless (@_) { |
95 | require Moose; |
96 | Moose->throw_error("Must specify at least one role to apply to $applicant"); |
97 | } |
e606ae5f |
98 | |
8e590ae4 |
99 | # If @_ contains role meta objects, mkopt will think that they're values, |
100 | # because they're references. In other words (roleobj1, roleobj2, |
101 | # roleobj3) will become [ [ roleobj1, roleobj2 ], [ roleobj3, undef ] ] |
102 | # -- this is no good. We'll preprocess @_ first to eliminate the potential |
103 | # bug. |
104 | # -- rjbs, 2011-04-08 |
105 | my $roles = Data::OptList::mkopt( [@_], { |
106 | moniker => 'role', |
107 | name_test => sub { |
108 | ! ref $_[0] or blessed($_[0]) && $_[0]->isa('Moose::Meta::Role') |
109 | } |
110 | }); |
e606ae5f |
111 | |
560c498d |
112 | my @role_metas; |
70ea9161 |
113 | foreach my $role (@$roles) { |
560c498d |
114 | my $meta; |
115 | |
116 | if ( blessed $role->[0] ) { |
117 | $meta = $role->[0]; |
118 | } |
119 | else { |
2e7f6cf4 |
120 | Class::MOP::load_class( $role->[0] , $role->[1] ); |
eea9eb4d |
121 | $meta = find_meta( $role->[0] ); |
560c498d |
122 | } |
70ea9161 |
123 | |
c8d9f1e2 |
124 | unless ($meta && $meta->isa('Moose::Meta::Role') ) { |
70ea9161 |
125 | require Moose; |
126 | Moose->throw_error( "You can only consume roles, " |
127 | . $role->[0] |
128 | . " is not a Moose role" ); |
129 | } |
560c498d |
130 | |
131 | push @role_metas, [ $meta, $role->[1] ]; |
70ea9161 |
132 | } |
e606ae5f |
133 | |
82a24871 |
134 | if ( defined $role_filter ) { |
560c498d |
135 | @role_metas = grep { local $_ = $_->[0]; $role_filter->() } @role_metas; |
8d4d1cdc |
136 | } |
b099a649 |
137 | |
560c498d |
138 | return unless @role_metas; |
b099a649 |
139 | |
18d77fc7 |
140 | Class::MOP::load_class($applicant) unless blessed($applicant); |
eea9eb4d |
141 | my $meta = ( blessed $applicant ? $applicant : Moose::Meta::Class->initialize($applicant) ); |
6fab0b75 |
142 | |
560c498d |
143 | if ( scalar @role_metas == 1 ) { |
144 | my ( $role, $params ) = @{ $role_metas[0] }; |
145 | $role->apply( $meta, ( defined $params ? %$params : () ) ); |
d7d8a8c7 |
146 | } |
147 | else { |
560c498d |
148 | Moose::Meta::Role->combine(@role_metas)->apply($meta); |
e606ae5f |
149 | } |
d7d8a8c7 |
150 | } |
151 | |
d26f5671 |
152 | sub with_traits { |
153 | my ($class, @roles) = @_; |
154 | return $class unless @roles; |
155 | return Moose::Meta::Class->create_anon_class( |
156 | superclasses => [$class], |
157 | roles => \@roles, |
158 | cache => 1, |
159 | )->name; |
160 | } |
161 | |
ab76842e |
162 | # instance deconstruction ... |
163 | |
164 | sub get_all_attribute_values { |
165 | my ($class, $instance) = @_; |
166 | return +{ |
167 | map { $_->name => $_->get_value($instance) } |
168 | grep { $_->has_value($instance) } |
b2df9268 |
169 | $class->get_all_attributes |
ab76842e |
170 | }; |
171 | } |
172 | |
173 | sub get_all_init_args { |
174 | my ($class, $instance) = @_; |
175 | return +{ |
176 | map { $_->init_arg => $_->get_value($instance) } |
177 | grep { $_->has_value($instance) } |
d03bd989 |
178 | grep { defined($_->init_arg) } |
b2df9268 |
179 | $class->get_all_attributes |
ab76842e |
180 | }; |
181 | } |
182 | |
50fbbf3d |
183 | sub resolve_metatrait_alias { |
50fbbf3d |
184 | return resolve_metaclass_alias( @_, trait => 1 ); |
a3738e5b |
185 | } |
186 | |
27f2f43f |
187 | sub _build_alias_package_name { |
188 | my ($type, $name, $trait) = @_; |
189 | return 'Moose::Meta::' |
190 | . $type |
191 | . '::Custom::' |
192 | . ( $trait ? 'Trait::' : '' ) |
193 | . $name; |
194 | } |
195 | |
50fbbf3d |
196 | { |
197 | my %cache; |
a3738e5b |
198 | |
50fbbf3d |
199 | sub resolve_metaclass_alias { |
200 | my ( $type, $metaclass_name, %options ) = @_; |
a3738e5b |
201 | |
50fbbf3d |
202 | my $cache_key = $type . q{ } . ( $options{trait} ? '-Trait' : '' ); |
203 | return $cache{$cache_key}{$metaclass_name} |
204 | if $cache{$cache_key}{$metaclass_name}; |
205 | |
27f2f43f |
206 | my $possible_full_name = _build_alias_package_name( |
207 | $type, $metaclass_name, $options{trait} |
208 | ); |
50fbbf3d |
209 | |
210 | my $loaded_class = Class::MOP::load_first_existing_class( |
211 | $possible_full_name, |
212 | $metaclass_name |
213 | ); |
214 | |
215 | return $cache{$cache_key}{$metaclass_name} |
216 | = $loaded_class->can('register_implementation') |
217 | ? $loaded_class->register_implementation |
218 | : $loaded_class; |
219 | } |
a3738e5b |
220 | } |
221 | |
5f71050b |
222 | sub add_method_modifier { |
223 | my ( $class_or_obj, $modifier_name, $args ) = @_; |
d5447d26 |
224 | my $meta |
225 | = $class_or_obj->can('add_before_method_modifier') |
226 | ? $class_or_obj |
227 | : find_meta($class_or_obj); |
5f71050b |
228 | my $code = pop @{$args}; |
229 | my $add_modifier_method = 'add_' . $modifier_name . '_method_modifier'; |
230 | if ( my $method_modifier_type = ref( @{$args}[0] ) ) { |
231 | if ( $method_modifier_type eq 'Regexp' ) { |
e606ae5f |
232 | my @all_methods = $meta->get_all_methods; |
5f71050b |
233 | my @matched_methods |
e606ae5f |
234 | = grep { $_->name =~ @{$args}[0] } @all_methods; |
235 | $meta->$add_modifier_method( $_->name, $code ) |
5f71050b |
236 | for @matched_methods; |
237 | } |
775666aa |
238 | elsif ($method_modifier_type eq 'ARRAY') { |
239 | $meta->$add_modifier_method( $_, $code ) for @{$args->[0]}; |
240 | } |
241 | else { |
242 | $meta->throw_error( |
243 | sprintf( |
244 | "Methods passed to %s must be provided as a list, arrayref or regex, not %s", |
245 | $modifier_name, |
246 | $method_modifier_type, |
247 | ) |
248 | ); |
249 | } |
5f71050b |
250 | } |
251 | else { |
252 | $meta->$add_modifier_method( $_, $code ) for @{$args}; |
253 | } |
254 | } |
d9bb6c63 |
255 | |
d939e016 |
256 | sub english_list { |
257 | my @items = sort @_; |
258 | |
259 | return $items[0] if @items == 1; |
260 | return "$items[0] and $items[1]" if @items == 2; |
261 | |
262 | my $tail = pop @items; |
263 | my $list = join ', ', @items; |
264 | $list .= ', and ' . $tail; |
265 | |
266 | return $list; |
267 | } |
268 | |
833b56a7 |
269 | sub _caller_info { |
270 | my $level = @_ ? ($_[0] + 1) : 2; |
271 | my %info; |
272 | @info{qw(package file line)} = caller($level); |
273 | return \%info; |
274 | } |
275 | |
27f2f43f |
276 | sub _create_alias { |
277 | my ($type, $name, $trait, $for) = @_; |
278 | my $package = _build_alias_package_name($type, $name, $trait); |
279 | Class::MOP::Class->initialize($package)->add_method( |
280 | register_implementation => sub { $for } |
281 | ); |
282 | } |
283 | |
284 | sub meta_attribute_alias { |
285 | my ($to, $from) = @_; |
286 | $from ||= caller; |
287 | my $meta = Class::MOP::class_of($from); |
288 | my $trait = $meta->isa('Moose::Meta::Role'); |
289 | _create_alias('Attribute', $to, $trait, $from); |
290 | } |
291 | |
292 | sub meta_class_alias { |
293 | my ($to, $from) = @_; |
294 | $from ||= caller; |
295 | my $meta = Class::MOP::class_of($from); |
296 | my $trait = $meta->isa('Moose::Meta::Role'); |
297 | _create_alias('Class', $to, $trait, $from); |
298 | } |
299 | |
88e88a7b |
300 | # XXX - this should be added to Params::Util |
5394a1c7 |
301 | sub _STRINGLIKE0 ($) { |
88e88a7b |
302 | return _STRING( $_[0] ) |
5394a1c7 |
303 | || ( defined $_[0] |
304 | && $_[0] eq q{} ) |
88e88a7b |
305 | || ( blessed $_[0] |
306 | && overload::Method( $_[0], q{""} ) |
307 | && length "$_[0]" ); |
308 | } |
309 | |
61907a02 |
310 | sub _reconcile_roles_for_metaclass { |
311 | my ($class_meta_name, $super_meta_name) = @_; |
312 | |
313 | my @role_differences = _role_differences( |
314 | $class_meta_name, $super_meta_name, |
315 | ); |
316 | |
317 | # handle the case where we need to fix compatibility between a class and |
318 | # its parent, but all roles in the class are already also done by the |
319 | # parent |
2c739d1a |
320 | # see t/metaclasses/metaclass_compat_no_fixing_bug.t |
61907a02 |
321 | return $super_meta_name |
322 | unless @role_differences; |
323 | |
324 | return Moose::Meta::Class->create_anon_class( |
325 | superclasses => [$super_meta_name], |
326 | roles => [map { $_->name } @role_differences], |
327 | cache => 1, |
328 | )->name; |
329 | } |
330 | |
331 | sub _role_differences { |
332 | my ($class_meta_name, $super_meta_name) = @_; |
6e15f532 |
333 | my @super_role_metas |
334 | = grep { !$_->isa('Moose::Meta::Role::Composite') } |
335 | $super_meta_name->meta->can('calculate_all_roles_with_inheritance') |
336 | ? $super_meta_name->meta->calculate_all_roles_with_inheritance |
337 | : $super_meta_name->meta->can('calculate_all_roles') |
338 | ? $super_meta_name->meta->calculate_all_roles |
339 | : (); |
340 | my @role_metas |
341 | = grep { !$_->isa('Moose::Meta::Role::Composite') } |
342 | $class_meta_name->meta->can('calculate_all_roles_with_inheritance') |
343 | ? $class_meta_name->meta->calculate_all_roles_with_inheritance |
344 | : $class_meta_name->meta->can('calculate_all_roles') |
345 | ? $class_meta_name->meta->calculate_all_roles |
346 | : (); |
61907a02 |
347 | my @differences; |
348 | for my $role_meta (@role_metas) { |
349 | push @differences, $role_meta |
350 | unless any { $_->name eq $role_meta->name } @super_role_metas; |
351 | } |
352 | return @differences; |
353 | } |
354 | |
d2782813 |
355 | sub _classes_differ_by_roles_only { |
356 | my ( $self_meta_name, $super_meta_name ) = @_; |
357 | |
358 | my $common_base_name |
359 | = _find_common_base( $self_meta_name, $super_meta_name ); |
360 | |
361 | return unless defined $common_base_name; |
362 | |
363 | my @super_meta_name_ancestor_names |
364 | = _get_ancestors_until( $super_meta_name, $common_base_name ); |
365 | my @class_meta_name_ancestor_names |
366 | = _get_ancestors_until( $self_meta_name, $common_base_name ); |
367 | |
368 | return |
369 | unless all { _is_role_only_subclass($_) } |
370 | @super_meta_name_ancestor_names, |
371 | @class_meta_name_ancestor_names; |
372 | |
373 | return 1; |
374 | } |
375 | |
376 | sub _find_common_base { |
377 | my ($meta1, $meta2) = map { Class::MOP::class_of($_) } @_; |
378 | return unless defined $meta1 && defined $meta2; |
379 | |
380 | # FIXME? This doesn't account for multiple inheritance (not sure |
381 | # if it needs to though). For example, if somewhere in $meta1's |
382 | # history it inherits from both ClassA and ClassB, and $meta2 |
383 | # inherits from ClassB & ClassA, does it matter? And what crazy |
384 | # fool would do that anyway? |
385 | |
386 | my %meta1_parents = map { $_ => 1 } $meta1->linearized_isa; |
387 | |
388 | return first { $meta1_parents{$_} } $meta2->linearized_isa; |
389 | } |
390 | |
391 | sub _get_ancestors_until { |
392 | my ($start_name, $until_name) = @_; |
393 | |
394 | my @ancestor_names; |
395 | for my $ancestor_name (Class::MOP::class_of($start_name)->linearized_isa) { |
396 | last if $ancestor_name eq $until_name; |
397 | push @ancestor_names, $ancestor_name; |
398 | } |
399 | return @ancestor_names; |
400 | } |
401 | |
402 | sub _is_role_only_subclass { |
403 | my ($meta_name) = @_; |
404 | my $meta = Class::MOP::Class->initialize($meta_name); |
405 | my @parent_names = $meta->superclasses; |
406 | |
407 | # XXX: don't feel like messing with multiple inheritance here... what would |
408 | # that even do? |
409 | return unless @parent_names == 1; |
410 | my ($parent_name) = @parent_names; |
411 | my $parent_meta = Class::MOP::Class->initialize($parent_name); |
412 | |
413 | # only get the roles attached to this particular class, don't look at |
414 | # superclasses |
415 | my @roles = $meta->can('calculate_all_roles') |
416 | ? $meta->calculate_all_roles |
417 | : (); |
418 | |
419 | # it's obviously not a role-only subclass if it doesn't do any roles |
420 | return unless @roles; |
421 | |
422 | # loop over all methods that are a part of the current class |
423 | # (not inherited) |
424 | for my $method ( $meta->_get_local_methods ) { |
425 | # always ignore meta |
ba7d613d |
426 | next if $method->isa('Class::MOP::Method::Meta'); |
d2782813 |
427 | # we'll deal with attributes below |
428 | next if $method->can('associated_attribute'); |
429 | # if the method comes from a role we consumed, ignore it |
430 | next if $meta->can('does_role') |
431 | && $meta->does_role($method->original_package_name); |
432 | # FIXME - this really isn't right. Just because a modifier is |
433 | # defined in a role doesn't mean it isn't _also_ defined in the |
434 | # subclass. |
435 | next if $method->isa('Class::MOP::Method::Wrapped') |
436 | && ( |
437 | (!scalar($method->around_modifiers) |
438 | || any { $_->has_around_method_modifiers($method->name) } @roles) |
439 | && (!scalar($method->before_modifiers) |
440 | || any { $_->has_before_method_modifiers($method->name) } @roles) |
441 | && (!scalar($method->after_modifiers) |
442 | || any { $_->has_after_method_modifiers($method->name) } @roles) |
443 | ); |
444 | |
445 | return 0; |
446 | } |
447 | |
448 | # loop over all attributes that are a part of the current class |
449 | # (not inherited) |
450 | # FIXME - this really isn't right. Just because an attribute is |
451 | # defined in a role doesn't mean it isn't _also_ defined in the |
452 | # subclass. |
453 | for my $attr (map { $meta->get_attribute($_) } $meta->get_attribute_list) { |
454 | next if any { $_->has_attribute($attr->name) } @roles; |
455 | |
456 | return 0; |
457 | } |
458 | |
459 | return 1; |
460 | } |
461 | |
9a641848 |
462 | 1; |
463 | |
ad46f524 |
464 | # ABSTRACT: Utilities for working with Moose classes |
465 | |
9a641848 |
466 | __END__ |
467 | |
468 | =pod |
469 | |
9a641848 |
470 | =head1 SYNOPSIS |
471 | |
6532ca5a |
472 | use Moose::Util qw/find_meta does_role search_class_by_role/; |
473 | |
474 | my $meta = find_meta($object) || die "No metaclass found"; |
9a641848 |
475 | |
adf82331 |
476 | if (does_role($object, $role)) { |
477 | print "The object can do $role!\n"; |
9a641848 |
478 | } |
479 | |
1631b53f |
480 | my $class = search_class_by_role($object, 'FooRole'); |
481 | print "Nearest class with 'FooRole' is $class\n"; |
482 | |
7125b244 |
483 | =head1 DESCRIPTION |
484 | |
2c3bf4e7 |
485 | This module provides a set of utility functions. Many of these |
486 | functions are intended for use in Moose itself or MooseX modules, but |
487 | some of them may be useful for use in your own code. |
7125b244 |
488 | |
489 | =head1 EXPORTED FUNCTIONS |
9a641848 |
490 | |
491 | =over 4 |
492 | |
2c3bf4e7 |
493 | =item B<find_meta($class_or_obj)> |
494 | |
495 | This method takes a class name or object and attempts to find a |
3ff98e47 |
496 | metaclass for the class, if one exists. It will B<not> create one if it |
2c3bf4e7 |
497 | does not yet exist. |
498 | |
560c498d |
499 | =item B<does_role($class_or_obj, $role_or_obj)> |
2c3bf4e7 |
500 | |
560c498d |
501 | Returns true if C<$class_or_obj> does the given C<$role_or_obj>. The role can |
502 | be provided as a name or a L<Moose::Meta::Role> object. |
6532ca5a |
503 | |
560c498d |
504 | The class must already have a metaclass for this to work. If it doesn't, this |
505 | function simply returns false. |
6532ca5a |
506 | |
560c498d |
507 | =item B<search_class_by_role($class_or_obj, $role_or_obj)> |
7125b244 |
508 | |
2c3bf4e7 |
509 | Returns the first class in the class's precedence list that does |
560c498d |
510 | C<$role_or_obj>, if any. The role can be either a name or a |
511 | L<Moose::Meta::Role> object. |
7125b244 |
512 | |
2c3bf4e7 |
513 | The class must already have a metaclass for this to work. |
7125b244 |
514 | |
2c3bf4e7 |
515 | =item B<apply_all_roles($applicant, @roles)> |
7125b244 |
516 | |
2c3bf4e7 |
517 | This function applies one or more roles to the given C<$applicant> The |
518 | applicant can be a role name, class name, or object. |
d7d8a8c7 |
519 | |
2c3bf4e7 |
520 | The C<$applicant> must already have a metaclass object. |
521 | |
560c498d |
522 | The list of C<@roles> should a list of names or L<Moose::Meta::Role> objects, |
523 | each of which can be followed by an optional hash reference of options |
524 | (C<-excludes> and C<-alias>). |
d7d8a8c7 |
525 | |
b099a649 |
526 | =item B<ensure_all_roles($applicant, @roles)> |
527 | |
528 | This function is similar to L</apply_all_roles>, but only applies roles that |
529 | C<$applicant> does not already consume. |
530 | |
d26f5671 |
531 | =item B<with_traits($class_name, @role_names)> |
532 | |
533 | This function creates a new class from C<$class_name> with each of |
534 | C<@role_names> applied. It returns the name of the new class. |
535 | |
ab76842e |
536 | =item B<get_all_attribute_values($meta, $instance)> |
537 | |
2c3bf4e7 |
538 | Returns a hash reference containing all of the C<$instance>'s |
539 | attributes. The keys are attribute names. |
ab76842e |
540 | |
541 | =item B<get_all_init_args($meta, $instance)> |
542 | |
2c3bf4e7 |
543 | Returns a hash reference containing all of the C<init_arg> values for |
544 | the instance's attributes. The values are the associated attribute |
545 | values. If an attribute does not have a defined C<init_arg>, it is |
546 | skipped. |
547 | |
548 | This could be useful in cloning an object. |
ab76842e |
549 | |
a3738e5b |
550 | =item B<resolve_metaclass_alias($category, $name, %options)> |
551 | |
552 | =item B<resolve_metatrait_alias($category, $name, %options)> |
553 | |
2c3bf4e7 |
554 | Resolves a short name to a full class name. Short names are often used |
555 | when specifying the C<metaclass> or C<traits> option for an attribute: |
a3738e5b |
556 | |
557 | has foo => ( |
558 | metaclass => "Bar", |
559 | ); |
560 | |
8a8856de |
561 | The name resolution mechanism is covered in |
562 | L<Moose/Metaclass and Trait Name Resolution>. |
5f71050b |
563 | |
27f2f43f |
564 | =item B<meta_class_alias($to[, $from])> |
565 | |
566 | =item B<meta_attribute_alias($to[, $from])> |
567 | |
568 | Create an alias from the class C<$from> (or the current package, if |
569 | C<$from> is unspecified), so that |
570 | L<Moose/Metaclass and Trait Name Resolution> works properly. |
571 | |
57385c0d |
572 | =item B<english_list(@items)> |
573 | |
574 | Given a list of scalars, turns them into a proper list in English |
575 | ("one and two", "one, two, three, and four"). This is used to help us |
576 | make nicer error messages. |
577 | |
7125b244 |
578 | =back |
9a641848 |
579 | |
7125b244 |
580 | =head1 TODO |
9a641848 |
581 | |
7125b244 |
582 | Here is a list of possible functions to write |
9a641848 |
583 | |
7125b244 |
584 | =over 4 |
1631b53f |
585 | |
7125b244 |
586 | =item discovering original method from modified method |
1631b53f |
587 | |
7125b244 |
588 | =item search for origin class of a method or attribute |
1631b53f |
589 | |
9a641848 |
590 | =back |
591 | |
592 | =head1 BUGS |
593 | |
d4048ef3 |
594 | See L<Moose/BUGS> for details on reporting bugs. |
9a641848 |
595 | |
9a641848 |
596 | =cut |
597 | |