Commit | Line | Data |
8b978dd5 |
1 | |
2 | package Class::MOP::Attribute; |
3 | |
4 | use strict; |
5 | use warnings; |
6 | |
2eb717d5 |
7 | use Carp 'confess'; |
9ec169fe |
8 | use Scalar::Util 'blessed', 'reftype', 'weaken'; |
2eb717d5 |
9 | |
be960ba1 |
10 | our $VERSION = '0.09'; |
8b978dd5 |
11 | |
727919c5 |
12 | sub meta { |
13 | require Class::MOP::Class; |
aa448b16 |
14 | Class::MOP::Class->initialize(blessed($_[0]) || $_[0]); |
727919c5 |
15 | } |
2eb717d5 |
16 | |
727919c5 |
17 | # NOTE: (meta-circularity) |
16e960bd |
18 | # This method will be replaced in the |
727919c5 |
19 | # boostrap section of Class::MOP, by |
20 | # a new version which uses the |
21 | # &Class::MOP::Class::construct_instance |
22 | # method to build an attribute meta-object |
23 | # which itself is described with attribute |
24 | # meta-objects. |
25 | # - Ain't meta-circularity grand? :) |
8b978dd5 |
26 | sub new { |
27 | my $class = shift; |
28 | my $name = shift; |
29 | my %options = @_; |
30 | |
cbd9f942 |
31 | (defined $name && $name) |
8b978dd5 |
32 | || confess "You must provide a name for the attribute"; |
5659d76e |
33 | $options{init_arg} = $name |
34 | if not exists $options{init_arg}; |
2eb717d5 |
35 | |
8b978dd5 |
36 | bless { |
c50c603e |
37 | name => $name, |
38 | accessor => $options{accessor}, |
39 | reader => $options{reader}, |
40 | writer => $options{writer}, |
41 | predicate => $options{predicate}, |
42 | init_arg => $options{init_arg}, |
9ec169fe |
43 | default => $options{default}, |
44 | # keep a weakened link to the |
45 | # class we are associated with |
46 | associated_class => undef, |
8b978dd5 |
47 | } => $class; |
48 | } |
49 | |
7b31baf4 |
50 | # NOTE: |
5659d76e |
51 | # this is a primative (and kludgy) clone operation |
16e960bd |
52 | # for now, it will be replaced in the Class::MOP |
5659d76e |
53 | # bootstrap with a proper one, however we know |
54 | # that this one will work fine for now. |
55 | sub clone { |
56 | my $self = shift; |
57 | my %options = @_; |
58 | (blessed($self)) |
59 | || confess "Can only clone an instance"; |
60 | return bless { %{$self}, %options } => blessed($self); |
61 | } |
62 | |
bd4e03f9 |
63 | sub initialize_instance_slot { |
f892c0f0 |
64 | my ($self, $meta_instance, $instance, $params) = @_; |
291073fc |
65 | my $init_arg = $self->{init_arg}; |
bd4e03f9 |
66 | # try to fetch the init arg from the %params ... |
67 | my $val; |
68 | $val = $params->{$init_arg} if exists $params->{$init_arg}; |
69 | # if nothing was in the %params, we can use the |
70 | # attribute's default value (if it has one) |
bb8dacfa |
71 | if (!defined $val && defined $self->{default}) { |
2d711cc8 |
72 | $val = $self->default($instance); |
73 | } |
43715282 |
74 | $meta_instance->set_slot_value($instance, $self->name, $val); |
bd4e03f9 |
75 | } |
76 | |
5659d76e |
77 | # NOTE: |
7b31baf4 |
78 | # the next bunch of methods will get bootstrapped |
79 | # away in the Class::MOP bootstrapping section |
80 | |
c50c603e |
81 | sub name { $_[0]->{name} } |
82 | |
7b31baf4 |
83 | sub associated_class { $_[0]->{associated_class} } |
84 | |
727919c5 |
85 | sub has_accessor { defined($_[0]->{accessor}) ? 1 : 0 } |
86 | sub has_reader { defined($_[0]->{reader}) ? 1 : 0 } |
87 | sub has_writer { defined($_[0]->{writer}) ? 1 : 0 } |
c50c603e |
88 | sub has_predicate { defined($_[0]->{predicate}) ? 1 : 0 } |
727919c5 |
89 | sub has_init_arg { defined($_[0]->{init_arg}) ? 1 : 0 } |
90 | sub has_default { defined($_[0]->{default}) ? 1 : 0 } |
c50c603e |
91 | |
92 | sub accessor { $_[0]->{accessor} } |
93 | sub reader { $_[0]->{reader} } |
94 | sub writer { $_[0]->{writer} } |
95 | sub predicate { $_[0]->{predicate} } |
96 | sub init_arg { $_[0]->{init_arg} } |
97 | |
7b31baf4 |
98 | # end bootstrapped away method section. |
99 | # (all methods below here are kept intact) |
100 | |
c0cbf4d9 |
101 | sub is_default_a_coderef { |
102 | (reftype($_[0]->{default}) && reftype($_[0]->{default}) eq 'CODE') |
103 | } |
104 | |
c50c603e |
105 | sub default { |
c0cbf4d9 |
106 | my ($self, $instance) = @_; |
107 | if ($instance && $self->is_default_a_coderef) { |
727919c5 |
108 | # if the default is a CODE ref, then |
109 | # we pass in the instance and default |
110 | # can return a value based on that |
111 | # instance. Somewhat crude, but works. |
c0cbf4d9 |
112 | return $self->{default}->($instance); |
c50c603e |
113 | } |
114 | $self->{default}; |
115 | } |
8b978dd5 |
116 | |
c57c8b10 |
117 | # slots |
118 | |
119 | sub slots { (shift)->name } |
120 | |
9ec169fe |
121 | # class association |
727919c5 |
122 | |
9ec169fe |
123 | sub attach_to_class { |
124 | my ($self, $class) = @_; |
125 | (blessed($class) && $class->isa('Class::MOP::Class')) |
126 | || confess "You must pass a Class::MOP::Class instance (or a subclass)"; |
127 | weaken($self->{associated_class} = $class); |
128 | } |
129 | |
130 | sub detach_from_class { |
131 | my $self = shift; |
132 | $self->{associated_class} = undef; |
133 | } |
134 | |
16e960bd |
135 | ## Slot management |
136 | |
137 | sub set_value { |
138 | my ( $self, $instance, $value ) = @_; |
139 | |
140 | Class::MOP::Class->initialize(Scalar::Util::blessed($instance)) |
141 | ->get_meta_instance |
142 | ->set_slot_value( $instance, $self->name, $value ); |
143 | } |
144 | |
145 | sub get_value { |
146 | my ( $self, $instance ) = @_; |
147 | |
148 | Class::MOP::Class->initialize(Scalar::Util::blessed($instance)) |
149 | ->get_meta_instance |
150 | ->get_slot_value( $instance, $self->name ); |
151 | } |
152 | |
9ec169fe |
153 | ## Method generation helpers |
154 | |
155 | sub generate_accessor_method { |
16e960bd |
156 | my $attr = shift; |
43715282 |
157 | return sub { |
16e960bd |
158 | $attr->set_value( $_[0], $_[1] ) if scalar(@_) == 2; |
159 | $attr->get_value( $_[0] ); |
43715282 |
160 | }; |
9ec169fe |
161 | } |
162 | |
c0cbf4d9 |
163 | sub generate_accessor_method_inline { |
164 | my $self = shift; |
165 | my $attr_name = $self->name; |
166 | my $meta_instance = $self->associated_class->instance_metaclass; |
167 | |
168 | my $code = eval 'sub {' |
4d47b77f |
169 | . $meta_instance->inline_set_slot_value('$_[0]', "'$attr_name'", '$_[1]') . ' if scalar(@_) == 2; ' |
170 | . $meta_instance->inline_get_slot_value('$_[0]', "'$attr_name'") |
c0cbf4d9 |
171 | . '}'; |
172 | confess "Could not generate inline accessor because : $@" if $@; |
173 | |
174 | return $code; |
175 | } |
176 | |
9ec169fe |
177 | sub generate_reader_method { |
16e960bd |
178 | my $attr = shift; |
43715282 |
179 | return sub { |
180 | confess "Cannot assign a value to a read-only accessor" if @_ > 1; |
16e960bd |
181 | $attr->get_value( $_[0] ); |
43715282 |
182 | }; |
9ec169fe |
183 | } |
184 | |
c0cbf4d9 |
185 | sub generate_reader_method_inline { |
186 | my $self = shift; |
187 | my $attr_name = $self->name; |
188 | my $meta_instance = $self->associated_class->instance_metaclass; |
189 | |
190 | my $code = eval 'sub {' |
191 | . 'confess "Cannot assign a value to a read-only accessor" if @_ > 1;' |
4d47b77f |
192 | . $meta_instance->inline_get_slot_value('$_[0]', "'$attr_name'") |
c0cbf4d9 |
193 | . '}'; |
194 | confess "Could not generate inline accessor because : $@" if $@; |
195 | |
196 | return $code; |
197 | } |
198 | |
9ec169fe |
199 | sub generate_writer_method { |
16e960bd |
200 | my $attr = shift; |
201 | return sub { |
202 | $attr->set_value( $_[0], $_[1] ); |
43715282 |
203 | }; |
9ec169fe |
204 | } |
205 | |
c0cbf4d9 |
206 | sub generate_writer_method_inline { |
207 | my $self = shift; |
208 | my $attr_name = $self->name; |
209 | my $meta_instance = $self->associated_class->instance_metaclass; |
210 | |
211 | my $code = eval 'sub {' |
4d47b77f |
212 | . $meta_instance->inline_set_slot_value('$_[0]', "'$attr_name'", '$_[1]') |
c0cbf4d9 |
213 | . '}'; |
214 | confess "Could not generate inline accessor because : $@" if $@; |
215 | |
216 | return $code; |
217 | } |
218 | |
9ec169fe |
219 | sub generate_predicate_method { |
08388f17 |
220 | my $self = shift; |
b880e0de |
221 | my $attr_name = $self->name; |
43715282 |
222 | return sub { |
223 | defined Class::MOP::Class->initialize(Scalar::Util::blessed($_[0])) |
224 | ->get_meta_instance |
225 | ->get_slot_value($_[0], $attr_name) ? 1 : 0; |
226 | }; |
9ec169fe |
227 | } |
228 | |
c0cbf4d9 |
229 | sub generate_predicate_method_inline { |
230 | my $self = shift; |
231 | my $attr_name = $self->name; |
232 | my $meta_instance = $self->associated_class->instance_metaclass; |
233 | |
234 | my $code = eval 'sub {' |
4d47b77f |
235 | . 'defined ' . $meta_instance->inline_get_slot_value('$_[0]', "'$attr_name'") . ' ? 1 : 0' |
c0cbf4d9 |
236 | . '}'; |
237 | confess "Could not generate inline accessor because : $@" if $@; |
238 | |
239 | return $code; |
240 | } |
241 | |
9ec169fe |
242 | sub process_accessors { |
c0cbf4d9 |
243 | my ($self, $type, $accessor, $generate_as_inline_methods) = @_; |
013b1897 |
244 | if (reftype($accessor)) { |
245 | (reftype($accessor) eq 'HASH') |
246 | || confess "bad accessor/reader/writer/predicate format, must be a HASH ref"; |
4d47b77f |
247 | my ($name, $method) = %{$accessor}; |
a4258ffd |
248 | return ($name, Class::MOP::Attribute::Accessor->wrap($method)); |
2eb717d5 |
249 | } |
9ec169fe |
250 | else { |
c0cbf4d9 |
251 | my $inline_me = ($generate_as_inline_methods && $self->associated_class->instance_metaclass->is_inlinable); |
252 | my $generator = $self->can('generate_' . $type . '_method' . ($inline_me ? '_inline' : '')); |
9ec169fe |
253 | ($generator) |
254 | || confess "There is no method generator for the type='$type'"; |
255 | if (my $method = $self->$generator($self->name)) { |
a4258ffd |
256 | return ($accessor => Class::MOP::Attribute::Accessor->wrap($method)); |
9ec169fe |
257 | } |
343203ee |
258 | confess "Could not create the '$type' method for " . $self->name . " because : $@"; |
9ec169fe |
259 | } |
260 | } |
261 | |
262 | sub install_accessors { |
c0cbf4d9 |
263 | my $self = shift; |
264 | my $inline = shift; |
265 | my $class = $self->associated_class; |
c50c603e |
266 | |
9ec169fe |
267 | $class->add_method( |
c0cbf4d9 |
268 | $self->process_accessors('accessor' => $self->accessor(), $inline) |
9ec169fe |
269 | ) if $self->has_accessor(); |
270 | |
271 | $class->add_method( |
c0cbf4d9 |
272 | $self->process_accessors('reader' => $self->reader(), $inline) |
9ec169fe |
273 | ) if $self->has_reader(); |
274 | |
275 | $class->add_method( |
c0cbf4d9 |
276 | $self->process_accessors('writer' => $self->writer(), $inline) |
9ec169fe |
277 | ) if $self->has_writer(); |
278 | |
279 | $class->add_method( |
c0cbf4d9 |
280 | $self->process_accessors('predicate' => $self->predicate(), $inline) |
9ec169fe |
281 | ) if $self->has_predicate(); |
c0cbf4d9 |
282 | |
9ec169fe |
283 | return; |
2eb717d5 |
284 | } |
285 | |
b51af7f9 |
286 | { |
287 | my $_remove_accessor = sub { |
288 | my ($accessor, $class) = @_; |
c50c603e |
289 | if (reftype($accessor) && reftype($accessor) eq 'HASH') { |
290 | ($accessor) = keys %{$accessor}; |
291 | } |
b51af7f9 |
292 | my $method = $class->get_method($accessor); |
293 | $class->remove_method($accessor) |
2eb717d5 |
294 | if (blessed($method) && $method->isa('Class::MOP::Attribute::Accessor')); |
b51af7f9 |
295 | }; |
c50c603e |
296 | |
b51af7f9 |
297 | sub remove_accessors { |
9ec169fe |
298 | my $self = shift; |
299 | $_remove_accessor->($self->accessor(), $self->associated_class()) if $self->has_accessor(); |
300 | $_remove_accessor->($self->reader(), $self->associated_class()) if $self->has_reader(); |
301 | $_remove_accessor->($self->writer(), $self->associated_class()) if $self->has_writer(); |
302 | $_remove_accessor->($self->predicate(), $self->associated_class()) if $self->has_predicate(); |
b51af7f9 |
303 | return; |
304 | } |
305 | |
8b978dd5 |
306 | } |
307 | |
2eb717d5 |
308 | package Class::MOP::Attribute::Accessor; |
309 | |
310 | use strict; |
311 | use warnings; |
312 | |
727919c5 |
313 | use Class::MOP::Method; |
314 | |
2eb717d5 |
315 | our $VERSION = '0.01'; |
316 | |
317 | our @ISA = ('Class::MOP::Method'); |
318 | |
8b978dd5 |
319 | 1; |
320 | |
321 | __END__ |
322 | |
323 | =pod |
324 | |
325 | =head1 NAME |
326 | |
327 | Class::MOP::Attribute - Attribute Meta Object |
328 | |
329 | =head1 SYNOPSIS |
330 | |
331 | Class::MOP::Attribute->new('$foo' => ( |
fe122940 |
332 | accessor => 'foo', # dual purpose get/set accessor |
333 | predicate => 'has_foo' # predicate check for defined-ness |
334 | init_arg => '-foo', # class->new will look for a -foo key |
335 | default => 'BAR IS BAZ!' # if no -foo key is provided, use this |
8b978dd5 |
336 | )); |
337 | |
338 | Class::MOP::Attribute->new('$.bar' => ( |
fe122940 |
339 | reader => 'bar', # getter |
340 | writer => 'set_bar', # setter |
341 | predicate => 'has_bar' # predicate check for defined-ness |
342 | init_arg => ':bar', # class->new will look for a :bar key |
8b978dd5 |
343 | # no default value means it is undef |
344 | )); |
345 | |
346 | =head1 DESCRIPTION |
347 | |
fe122940 |
348 | The Attribute Protocol is almost entirely an invention of this module, |
349 | and is completely optional to this MOP. This is because Perl 5 does not |
350 | have consistent notion of what is an attribute of a class. There are |
351 | so many ways in which this is done, and very few (if any) are |
352 | easily discoverable by this module. |
552e3d24 |
353 | |
354 | So, all that said, this module attempts to inject some order into this |
fe122940 |
355 | chaos, by introducing a consistent API which can be used to create |
356 | object attributes. |
552e3d24 |
357 | |
358 | =head1 METHODS |
359 | |
360 | =head2 Creation |
361 | |
362 | =over 4 |
363 | |
fe122940 |
364 | =item B<new ($name, ?%options)> |
365 | |
366 | An attribute must (at the very least), have a C<$name>. All other |
a2e85e6c |
367 | C<%options> are contained added as key-value pairs. Acceptable keys |
fe122940 |
368 | are as follows: |
369 | |
370 | =over 4 |
371 | |
372 | =item I<init_arg> |
373 | |
374 | This should be a string value representing the expected key in |
375 | an initialization hash. For instance, if we have an I<init_arg> |
376 | value of C<-foo>, then the following code will Just Work. |
377 | |
378 | MyClass->meta->construct_instance(-foo => "Hello There"); |
379 | |
7b31baf4 |
380 | In an init_arg is not assigned, it will automatically use the |
381 | value of C<$name>. |
382 | |
fe122940 |
383 | =item I<default> |
384 | |
385 | The value of this key is the default value which |
386 | C<Class::MOP::Class::construct_instance> will initialize the |
387 | attribute to. |
388 | |
389 | B<NOTE:> |
390 | If the value is a simple scalar (string or number), then it can |
391 | be just passed as is. However, if you wish to initialize it with |
392 | a HASH or ARRAY ref, then you need to wrap that inside a CODE |
393 | reference, like so: |
394 | |
395 | Class::MOP::Attribute->new('@foo' => ( |
396 | default => sub { [] }, |
397 | )); |
398 | |
399 | # or ... |
400 | |
401 | Class::MOP::Attribute->new('%foo' => ( |
402 | default => sub { {} }, |
403 | )); |
404 | |
405 | If you wish to initialize an attribute with a CODE reference |
406 | itself, then you need to wrap that in a subroutine as well, like |
407 | so: |
408 | |
409 | Class::MOP::Attribute->new('&foo' => ( |
410 | default => sub { sub { print "Hello World" } }, |
411 | )); |
412 | |
413 | And lastly, if the value of your attribute is dependent upon |
414 | some other aspect of the instance structure, then you can take |
415 | advantage of the fact that when the I<default> value is a CODE |
416 | reference, it is passed the raw (unblessed) instance structure |
417 | as it's only argument. So you can do things like this: |
418 | |
419 | Class::MOP::Attribute->new('$object_identity' => ( |
420 | default => sub { Scalar::Util::refaddr($_[0]) }, |
421 | )); |
422 | |
423 | This last feature is fairly limited as there is no gurantee of |
424 | the order of attribute initializations, so you cannot perform |
425 | any kind of dependent initializations. However, if this is |
426 | something you need, you could subclass B<Class::MOP::Class> and |
427 | this class to acheive it. However, this is currently left as |
428 | an exercise to the reader :). |
429 | |
430 | =back |
431 | |
a2e85e6c |
432 | The I<accessor>, I<reader>, I<writer> and I<predicate> keys can |
fe122940 |
433 | contain either; the name of the method and an appropriate default |
434 | one will be generated for you, B<or> a HASH ref containing exactly one |
435 | key (which will be used as the name of the method) and one value, |
436 | which should contain a CODE reference which will be installed as |
437 | the method itself. |
59e7697f |
438 | |
439 | =over 4 |
440 | |
441 | =item I<accessor> |
442 | |
fe122940 |
443 | The I<accessor> is a standard perl-style read/write accessor. It will |
444 | return the value of the attribute, and if a value is passed as an argument, |
445 | it will assign that value to the attribute. |
446 | |
447 | B<NOTE:> |
448 | This method will properly handle the following code, by assigning an |
449 | C<undef> value to the attribute. |
450 | |
451 | $object->set_something(undef); |
452 | |
59e7697f |
453 | =item I<reader> |
454 | |
fe122940 |
455 | This is a basic read-only accessor, it will just return the value of |
456 | the attribute. |
457 | |
59e7697f |
458 | =item I<writer> |
459 | |
fe122940 |
460 | This is a basic write accessor, it accepts a single argument, and |
461 | assigns that value to the attribute. This method does not intentially |
462 | return a value, however perl will return the result of the last |
463 | expression in the subroutine, which returns in this returning the |
464 | same value that it was passed. |
59e7697f |
465 | |
fe122940 |
466 | B<NOTE:> |
467 | This method will properly handle the following code, by assigning an |
468 | C<undef> value to the attribute. |
59e7697f |
469 | |
fe122940 |
470 | $object->set_something(); |
471 | |
472 | =item I<predicate> |
473 | |
474 | This is a basic test to see if the value of the attribute is not |
475 | C<undef>. It will return true (C<1>) if the attribute's value is |
476 | defined, and false (C<0>) otherwise. |
59e7697f |
477 | |
478 | =back |
552e3d24 |
479 | |
bd4e03f9 |
480 | =item B<clone (%options)> |
481 | |
482 | =item B<initialize_instance_slot ($instance, $params)> |
483 | |
552e3d24 |
484 | =back |
485 | |
16e960bd |
486 | =head2 Value management |
487 | |
488 | =over 4 |
489 | |
490 | =item set_value $instance, $value |
491 | |
492 | Set the value without going through the accessor. Note that this may be done to |
493 | even attributes with just read only accessors. |
494 | |
495 | =item get_value $instance |
496 | |
497 | Return the value without going through the accessor. Note that this may be done |
498 | even to attributes with just write only accessors. |
499 | |
500 | =back |
501 | |
552e3d24 |
502 | =head2 Informational |
503 | |
fe122940 |
504 | These are all basic read-only value accessors for the values |
505 | passed into C<new>. I think they are pretty much self-explanitory. |
506 | |
552e3d24 |
507 | =over 4 |
508 | |
509 | =item B<name> |
510 | |
511 | =item B<accessor> |
512 | |
513 | =item B<reader> |
514 | |
515 | =item B<writer> |
516 | |
c50c603e |
517 | =item B<predicate> |
518 | |
552e3d24 |
519 | =item B<init_arg> |
520 | |
495af518 |
521 | =item B<is_default_a_coderef> |
522 | |
fe122940 |
523 | =item B<default (?$instance)> |
524 | |
525 | As noted in the documentation for C<new> above, if the I<default> |
526 | value is a CODE reference, this accessor will pass a single additional |
527 | argument C<$instance> into it and return the value. |
552e3d24 |
528 | |
c57c8b10 |
529 | =item B<slots> |
530 | |
531 | Returns a list of slots required by the attribute. This is usually |
532 | just one, which is the name of the attribute. |
533 | |
552e3d24 |
534 | =back |
535 | |
536 | =head2 Informational predicates |
537 | |
a2e85e6c |
538 | These are all basic predicate methods for the values passed into C<new>. |
fe122940 |
539 | |
552e3d24 |
540 | =over 4 |
541 | |
542 | =item B<has_accessor> |
543 | |
552e3d24 |
544 | =item B<has_reader> |
545 | |
552e3d24 |
546 | =item B<has_writer> |
547 | |
c50c603e |
548 | =item B<has_predicate> |
549 | |
552e3d24 |
550 | =item B<has_init_arg> |
551 | |
552e3d24 |
552 | =item B<has_default> |
553 | |
552e3d24 |
554 | =back |
555 | |
9ec169fe |
556 | =head2 Class association |
557 | |
558 | =over 4 |
559 | |
560 | =item B<associated_class> |
561 | |
562 | =item B<attach_to_class ($class)> |
563 | |
564 | =item B<detach_from_class> |
565 | |
2d711cc8 |
566 | =item B<slot_name> |
567 | |
568 | =item B<allocate_slots> |
569 | |
570 | =item B<deallocate_slots> |
571 | |
9ec169fe |
572 | =back |
573 | |
552e3d24 |
574 | =head2 Attribute Accessor generation |
575 | |
576 | =over 4 |
577 | |
9ec169fe |
578 | =item B<install_accessors> |
2eb717d5 |
579 | |
580 | This allows the attribute to generate and install code for it's own |
a2e85e6c |
581 | I<accessor/reader/writer/predicate> methods. This is called by |
fe122940 |
582 | C<Class::MOP::Class::add_attribute>. |
2eb717d5 |
583 | |
9ec169fe |
584 | This method will call C<process_accessors> for each of the possible |
585 | method types (accessor, reader, writer & predicate). |
586 | |
587 | =item B<process_accessors ($type, $value)> |
588 | |
589 | This takes a C<$type> (accessor, reader, writer or predicate), and |
590 | a C<$value> (the value passed into the constructor for each of the |
591 | different types). It will then either generate the method itself |
592 | (using the C<generate_*_method> methods listed below) or it will |
593 | use the custom method passed through the constructor. |
594 | |
595 | =over 4 |
596 | |
08388f17 |
597 | =item B<generate_accessor_method> |
9ec169fe |
598 | |
08388f17 |
599 | =item B<generate_predicate_method> |
9ec169fe |
600 | |
08388f17 |
601 | =item B<generate_reader_method> |
9ec169fe |
602 | |
08388f17 |
603 | =item B<generate_writer_method> |
9ec169fe |
604 | |
605 | =back |
606 | |
495af518 |
607 | =over 4 |
608 | |
609 | =item B<generate_accessor_method_inline> |
610 | |
611 | =item B<generate_predicate_method_inline> |
612 | |
613 | =item B<generate_reader_method_inline> |
614 | |
615 | =item B<generate_writer_method_inline> |
616 | |
617 | =back |
618 | |
9ec169fe |
619 | =item B<remove_accessors> |
2eb717d5 |
620 | |
621 | This allows the attribute to remove the method for it's own |
a2e85e6c |
622 | I<accessor/reader/writer/predicate>. This is called by |
fe122940 |
623 | C<Class::MOP::Class::remove_attribute>. |
2eb717d5 |
624 | |
625 | =back |
626 | |
627 | =head2 Introspection |
628 | |
629 | =over 4 |
552e3d24 |
630 | |
2eb717d5 |
631 | =item B<meta> |
552e3d24 |
632 | |
fe122940 |
633 | This will return a B<Class::MOP::Class> instance which is related |
634 | to this class. |
635 | |
636 | It should also be noted that B<Class::MOP> will actually bootstrap |
637 | this module by installing a number of attribute meta-objects into |
638 | it's metaclass. This will allow this class to reap all the benifits |
639 | of the MOP when subclassing it. |
640 | |
552e3d24 |
641 | =back |
642 | |
8b978dd5 |
643 | =head1 AUTHOR |
644 | |
a2e85e6c |
645 | Stevan Little E<lt>stevan@iinteractive.comE<gt> |
8b978dd5 |
646 | |
647 | =head1 COPYRIGHT AND LICENSE |
648 | |
649 | Copyright 2006 by Infinity Interactive, Inc. |
650 | |
651 | L<http://www.iinteractive.com> |
652 | |
653 | This library is free software; you can redistribute it and/or modify |
654 | it under the same terms as Perl itself. |
655 | |
16e960bd |
656 | =cut |
657 | |