Commit | Line | Data |
fcd84ca9 |
1 | |
2 | package Moose; |
3 | |
4 | use strict; |
5 | use warnings; |
6 | |
e95c7c42 |
7 | our $VERSION = '0.13'; |
fcd84ca9 |
8 | |
cc65ead0 |
9 | use Scalar::Util 'blessed', 'reftype'; |
fcd84ca9 |
10 | use Carp 'confess'; |
bc1e29b5 |
11 | use Sub::Name 'subname'; |
31f8ec72 |
12 | use B 'svref_2object'; |
fcd84ca9 |
13 | |
2d562421 |
14 | use Sub::Exporter; |
7f18097c |
15 | |
ef1d5f4b |
16 | use Class::MOP; |
17 | |
c0e30cf5 |
18 | use Moose::Meta::Class; |
7415b2cb |
19 | use Moose::Meta::TypeConstraint; |
7c13858b |
20 | use Moose::Meta::TypeCoercion; |
78cd1d3b |
21 | use Moose::Meta::Attribute; |
ddd0ec20 |
22 | use Moose::Meta::Instance; |
c0e30cf5 |
23 | |
fcd84ca9 |
24 | use Moose::Object; |
7415b2cb |
25 | use Moose::Util::TypeConstraints; |
a15dff8d |
26 | |
a3c7e2fe |
27 | { |
be33e4f3 |
28 | my $CALLER; |
a3c7e2fe |
29 | |
be33e4f3 |
30 | sub _init_meta { |
a3c7e2fe |
31 | my $class = $CALLER; |
32 | |
a3c7e2fe |
33 | # make a subtype for each Moose class |
34 | subtype $class |
35 | => as 'Object' |
36 | => where { $_->isa($class) } |
37 | unless find_type_constraint($class); |
38 | |
39 | my $meta; |
40 | if ($class->can('meta')) { |
fcec2383 |
41 | # NOTE: |
42 | # this is the case where the metaclass pragma |
43 | # was used before the 'use Moose' statement to |
44 | # override a specific class |
a3c7e2fe |
45 | $meta = $class->meta(); |
46 | (blessed($meta) && $meta->isa('Moose::Meta::Class')) |
66bcefc1 |
47 | || confess "You already have a &meta function, but it does not return a Moose::Meta::Class"; |
a3c7e2fe |
48 | } |
49 | else { |
fcec2383 |
50 | # NOTE: |
51 | # this is broken currently, we actually need |
52 | # to allow the possiblity of an inherited |
53 | # meta, which will not be visible until the |
54 | # user 'extends' first. This needs to have |
55 | # more intelligence to it |
590868a3 |
56 | $meta = Moose::Meta::Class->initialize($class); |
a3c7e2fe |
57 | $meta->add_method('meta' => sub { |
58 | # re-initialize so it inherits properly |
fcb7afc2 |
59 | Moose::Meta::Class->initialize(blessed($_[0]) || $_[0]); |
a3c7e2fe |
60 | }) |
61 | } |
62 | |
63 | # make sure they inherit from Moose::Object |
64 | $meta->superclasses('Moose::Object') |
65 | unless $meta->superclasses(); |
a3c7e2fe |
66 | } |
67 | |
68 | my %exports = ( |
69 | extends => sub { |
be33e4f3 |
70 | my $class = $CALLER; |
68117c45 |
71 | return subname 'Moose::extends' => sub (@) { |
72 | confess "Must derive at least one class" unless @_; |
a3c7e2fe |
73 | _load_all_classes(@_); |
1341f10c |
74 | # this checks the metaclass to make sure |
75 | # it is correct, sometimes it can get out |
76 | # of sync when the classes are being built |
77 | my $meta = $class->meta->_fix_metaclass_incompatability(@_); |
be33e4f3 |
78 | $meta->superclasses(@_); |
a3c7e2fe |
79 | }; |
80 | }, |
81 | with => sub { |
be33e4f3 |
82 | my $class = $CALLER; |
68117c45 |
83 | return subname 'Moose::with' => sub (@) { |
db1ab48d |
84 | my (@roles) = @_; |
68117c45 |
85 | confess "Must specify at least one role" unless @roles; |
db1ab48d |
86 | _load_all_classes(@roles); |
1341f10c |
87 | $class->meta->_apply_all_roles(@roles); |
a3c7e2fe |
88 | }; |
89 | }, |
90 | has => sub { |
be33e4f3 |
91 | my $class = $CALLER; |
2c0cbef7 |
92 | return subname 'Moose::has' => sub ($;%) { |
452bac1b |
93 | my ($name, %options) = @_; |
1341f10c |
94 | $class->meta->_process_attribute($name, %options); |
a3c7e2fe |
95 | }; |
96 | }, |
97 | before => sub { |
be33e4f3 |
98 | my $class = $CALLER; |
2c0cbef7 |
99 | return subname 'Moose::before' => sub (@&) { |
a3c7e2fe |
100 | my $code = pop @_; |
be33e4f3 |
101 | my $meta = $class->meta; |
a3c7e2fe |
102 | $meta->add_before_method_modifier($_, $code) for @_; |
103 | }; |
104 | }, |
105 | after => sub { |
be33e4f3 |
106 | my $class = $CALLER; |
2c0cbef7 |
107 | return subname 'Moose::after' => sub (@&) { |
a3c7e2fe |
108 | my $code = pop @_; |
be33e4f3 |
109 | my $meta = $class->meta; |
a3c7e2fe |
110 | $meta->add_after_method_modifier($_, $code) for @_; |
111 | }; |
112 | }, |
113 | around => sub { |
be33e4f3 |
114 | my $class = $CALLER; |
2c0cbef7 |
115 | return subname 'Moose::around' => sub (@&) { |
a3c7e2fe |
116 | my $code = pop @_; |
be33e4f3 |
117 | my $meta = $class->meta; |
a3c7e2fe |
118 | $meta->add_around_method_modifier($_, $code) for @_; |
119 | }; |
120 | }, |
121 | super => sub { |
3d544ed5 |
122 | return subname 'Moose::super' => sub {}; |
a3c7e2fe |
123 | }, |
124 | override => sub { |
be33e4f3 |
125 | my $class = $CALLER; |
2c0cbef7 |
126 | return subname 'Moose::override' => sub ($&) { |
a3c7e2fe |
127 | my ($name, $method) = @_; |
be33e4f3 |
128 | $class->meta->add_override_method_modifier($name => $method); |
a3c7e2fe |
129 | }; |
130 | }, |
131 | inner => sub { |
3d544ed5 |
132 | return subname 'Moose::inner' => sub {}; |
a3c7e2fe |
133 | }, |
134 | augment => sub { |
be33e4f3 |
135 | my $class = $CALLER; |
2c0cbef7 |
136 | return subname 'Moose::augment' => sub (@&) { |
a3c7e2fe |
137 | my ($name, $method) = @_; |
be33e4f3 |
138 | $class->meta->add_augment_method_modifier($name => $method); |
a3c7e2fe |
139 | }; |
140 | }, |
3279ab4a |
141 | |
68efb014 |
142 | # NOTE: |
143 | # this is experimental for now ... |
3279ab4a |
144 | self => sub { |
145 | return subname 'Moose::self' => sub {}; |
146 | }, |
147 | method => sub { |
148 | my $class = $CALLER; |
149 | return subname 'Moose::method' => sub { |
150 | my ($name, $method) = @_; |
151 | $class->meta->add_method($name, sub { |
152 | my $self = shift; |
153 | no strict 'refs'; |
154 | no warnings 'redefine'; |
155 | local *{$class->meta->name . '::self'} = sub { $self }; |
156 | $method->(@_); |
157 | }); |
158 | }; |
159 | }, |
160 | |
a3c7e2fe |
161 | confess => sub { |
162 | return \&Carp::confess; |
163 | }, |
164 | blessed => sub { |
165 | return \&Scalar::Util::blessed; |
66bcefc1 |
166 | }, |
a3c7e2fe |
167 | ); |
3d544ed5 |
168 | |
a3c7e2fe |
169 | my $exporter = Sub::Exporter::build_exporter({ |
170 | exports => \%exports, |
171 | groups => { |
172 | default => [':all'] |
173 | } |
174 | }); |
175 | |
fcb7afc2 |
176 | sub import { |
a3c7e2fe |
177 | $CALLER = caller(); |
c235cd98 |
178 | |
179 | strict->import; |
180 | warnings->import; |
a3c7e2fe |
181 | |
182 | # we should never export to main |
183 | return if $CALLER eq 'main'; |
be33e4f3 |
184 | |
185 | _init_meta(); |
9eacbf7c |
186 | |
a3c7e2fe |
187 | goto $exporter; |
fcb7afc2 |
188 | } |
31f8ec72 |
189 | |
190 | sub unimport { |
191 | no strict 'refs'; |
192 | my $class = caller(); |
193 | # loop through the exports ... |
194 | foreach my $name (keys %exports) { |
3279ab4a |
195 | next if $name =~ /inner|super|self/; |
31f8ec72 |
196 | |
197 | # if we find one ... |
198 | if (defined &{$class . '::' . $name}) { |
199 | my $keyword = \&{$class . '::' . $name}; |
200 | |
201 | # make sure it is from Moose |
202 | my $pkg_name = eval { svref_2object($keyword)->GV->STASH->NAME }; |
203 | next if $@; |
204 | next if $pkg_name ne 'Moose'; |
205 | |
206 | # and if it is from Moose then undef the slot |
207 | delete ${$class . '::'}{$name}; |
208 | } |
209 | } |
b805c70c |
210 | |
211 | # return a true value |
212 | # so that it can be used |
213 | # as a module end |
214 | 1; |
31f8ec72 |
215 | } |
fcd84ca9 |
216 | } |
217 | |
e9bb8a31 |
218 | ## Utility functions |
219 | |
78cd1d3b |
220 | sub _load_all_classes { |
f90dc7ee |
221 | foreach my $class (@_) { |
e9bb8a31 |
222 | # see if this is already |
223 | # loaded in the symbol table |
f90dc7ee |
224 | next if _is_class_already_loaded($class); |
e9bb8a31 |
225 | # otherwise require it ... |
3c2bc5e2 |
226 | my $file = $class . '.pm'; |
227 | $file =~ s{::}{/}g; |
228 | eval { CORE::require($file) }; |
229 | confess( |
f90dc7ee |
230 | "Could not load module '$class' because : $@" |
3c2bc5e2 |
231 | ) if $@; |
232 | } |
e9bb8a31 |
233 | } |
234 | |
d7f17ebb |
235 | sub _is_class_already_loaded { |
236 | my $name = shift; |
237 | no strict 'refs'; |
238 | return 1 if defined ${"${name}::VERSION"} || defined @{"${name}::ISA"}; |
239 | foreach (keys %{"${name}::"}) { |
240 | next if substr($_, -2, 2) eq '::'; |
241 | return 1 if defined &{"${name}::$_"}; |
242 | } |
3c2bc5e2 |
243 | return 0; |
d7f17ebb |
244 | } |
245 | |
fcd84ca9 |
246 | 1; |
247 | |
248 | __END__ |
249 | |
250 | =pod |
251 | |
252 | =head1 NAME |
253 | |
31f8ec72 |
254 | Moose - A complete modern object system for Perl 5 |
fcd84ca9 |
255 | |
256 | =head1 SYNOPSIS |
e522431d |
257 | |
258 | package Point; |
43d599e5 |
259 | use strict; |
260 | use warnings; |
e522431d |
261 | use Moose; |
262 | |
43d599e5 |
263 | has 'x' => (is => 'rw', isa => 'Int'); |
264 | has 'y' => (is => 'rw', isa => 'Int'); |
e522431d |
265 | |
266 | sub clear { |
267 | my $self = shift; |
268 | $self->x(0); |
269 | $self->y(0); |
270 | } |
271 | |
272 | package Point3D; |
43d599e5 |
273 | use strict; |
274 | use warnings; |
e522431d |
275 | use Moose; |
276 | |
277 | extends 'Point'; |
09fdc1dc |
278 | |
43d599e5 |
279 | has 'z' => (is => 'rw', isa => 'Int'); |
e522431d |
280 | |
281 | after 'clear' => sub { |
282 | my $self = shift; |
43d599e5 |
283 | $self->z(0); |
e522431d |
284 | }; |
285 | |
286 | =head1 CAVEAT |
287 | |
2c0cbef7 |
288 | Moose is a rapidly maturing module, and is already being used by |
289 | a number of people. It's test suite is growing larger by the day, |
290 | and the docs should soon follow. |
291 | |
292 | This said, Moose is not yet finished, and should still be considered |
293 | to be evolving. Much of the outer API is stable, but the internals |
294 | are still subject to change (although not without serious thought |
295 | given to it). |
296 | |
297 | For more details, please refer to the L<FUTURE PLANS> section of |
298 | this document. |
e522431d |
299 | |
fcd84ca9 |
300 | =head1 DESCRIPTION |
301 | |
e522431d |
302 | Moose is an extension of the Perl 5 object system. |
303 | |
304 | =head2 Another object system!?!? |
fcd84ca9 |
305 | |
e522431d |
306 | Yes, I know there has been an explosion recently of new ways to |
68efb014 |
307 | build object's in Perl 5, most of them based on inside-out objects |
e522431d |
308 | and other such things. Moose is different because it is not a new |
309 | object system for Perl 5, but instead an extension of the existing |
310 | object system. |
3c7278fb |
311 | |
e522431d |
312 | Moose is built on top of L<Class::MOP>, which is a metaclass system |
313 | for Perl 5. This means that Moose not only makes building normal |
505c6fac |
314 | Perl 5 objects better, but it also provides the power of metaclass |
315 | programming. |
e522431d |
316 | |
2c0cbef7 |
317 | =head2 Can I use this in production? Or is this just an experiment? |
e522431d |
318 | |
2c0cbef7 |
319 | Moose is I<based> on the prototypes and experiments I did for the Perl 6 |
68efb014 |
320 | meta-model; however Moose is B<NOT> an experiment/prototype, it is |
43d599e5 |
321 | for B<real>. I will be deploying Moose into production environments later |
68efb014 |
322 | this year, and I have every intentions of using it as my de facto class |
323 | builder from now on. |
e522431d |
324 | |
43d599e5 |
325 | =head2 Is Moose just Perl 6 in Perl 5? |
e522431d |
326 | |
68efb014 |
327 | No. While Moose is very much inspired by Perl 6, it is not itself Perl 6. |
328 | Instead, it is an OO system for Perl 5. I built Moose because I was tired or |
329 | writing the same old boring Perl 5 OO code, and drooling over Perl 6 OO. So |
330 | instead of switching to Ruby, I wrote Moose :) |
3c7278fb |
331 | |
6ba6d68c |
332 | =head1 BUILDING CLASSES WITH MOOSE |
333 | |
68efb014 |
334 | Moose makes every attempt to provide as much convenience as possible during |
335 | class construction/definition, but still stay out of your way if you want it |
336 | to. Here are a few items to note when building classes with Moose. |
6ba6d68c |
337 | |
338 | Unless specified with C<extends>, any class which uses Moose will |
339 | inherit from L<Moose::Object>. |
340 | |
341 | Moose will also manage all attributes (including inherited ones) that |
68efb014 |
342 | are defined with C<has>. And assuming that you call C<new>, which is |
6ba6d68c |
343 | inherited from L<Moose::Object>, then this includes properly initializing |
68efb014 |
344 | all instance slots, setting defaults where appropriate, and performing any |
6ba6d68c |
345 | type constraint checking or coercion. |
346 | |
347 | =head1 EXPORTED FUNCTIONS |
348 | |
68efb014 |
349 | Moose will export a number of functions into the class's namespace which |
6ba6d68c |
350 | can then be used to set up the class. These functions all work directly |
351 | on the current class. |
352 | |
353 | =over 4 |
354 | |
355 | =item B<meta> |
356 | |
357 | This is a method which provides access to the current class's metaclass. |
358 | |
359 | =item B<extends (@superclasses)> |
360 | |
361 | This function will set the superclass(es) for the current class. |
362 | |
363 | This approach is recommended instead of C<use base>, because C<use base> |
364 | actually C<push>es onto the class's C<@ISA>, whereas C<extends> will |
365 | replace it. This is important to ensure that classes which do not have |
68efb014 |
366 | superclasses still properly inherit from L<Moose::Object>. |
6ba6d68c |
367 | |
43d599e5 |
368 | =item B<with (@roles)> |
e9ec68d6 |
369 | |
43d599e5 |
370 | This will apply a given set of C<@roles> to the local class. Role support |
68efb014 |
371 | is currently under heavy development; see L<Moose::Role> for more details. |
e9ec68d6 |
372 | |
6ba6d68c |
373 | =item B<has ($name, %options)> |
374 | |
375 | This will install an attribute of a given C<$name> into the current class. |
43d599e5 |
376 | The list of C<%options> are the same as those provided by |
377 | L<Class::MOP::Attribute>, in addition to the list below which are provided |
378 | by Moose (L<Moose::Meta::Attribute> to be more specific): |
6ba6d68c |
379 | |
380 | =over 4 |
381 | |
076c81ed |
382 | =item I<is =E<gt> 'rw'|'ro'> |
6ba6d68c |
383 | |
384 | The I<is> option accepts either I<rw> (for read/write) or I<ro> (for read |
385 | only). These will create either a read/write accessor or a read-only |
386 | accessor respectively, using the same name as the C<$name> of the attribute. |
387 | |
388 | If you need more control over how your accessors are named, you can use the |
43d599e5 |
389 | I<reader>, I<writer> and I<accessor> options inherited from L<Class::MOP::Attribute>. |
6ba6d68c |
390 | |
076c81ed |
391 | =item I<isa =E<gt> $type_name> |
6ba6d68c |
392 | |
393 | The I<isa> option uses Moose's type constraint facilities to set up runtime |
394 | type checking for this attribute. Moose will perform the checks during class |
395 | construction, and within any accessors. The C<$type_name> argument must be a |
68efb014 |
396 | string. The string can be either a class name or a type defined using |
397 | Moose's type definition features. |
6ba6d68c |
398 | |
daea75c9 |
399 | =item I<coerce =E<gt> (1|0)> |
400 | |
401 | This will attempt to use coercion with the supplied type constraint to change |
68efb014 |
402 | the value passed into any accessors or constructors. You B<must> have supplied |
daea75c9 |
403 | a type constraint in order for this to work. See L<Moose::Cookbook::Recipe5> |
404 | for an example usage. |
405 | |
406 | =item I<does =E<gt> $role_name> |
407 | |
408 | This will accept the name of a role which the value stored in this attribute |
409 | is expected to have consumed. |
410 | |
411 | =item I<required =E<gt> (1|0)> |
412 | |
413 | This marks the attribute as being required. This means a value must be supplied |
414 | during class construction, and the attribute can never be set to C<undef> with |
415 | an accessor. |
416 | |
417 | =item I<weak_ref =E<gt> (1|0)> |
418 | |
68efb014 |
419 | This will tell the class to store the value of this attribute as a weakened |
420 | reference. If an attribute is a weakened reference, it B<cannot> also be |
421 | coerced. |
daea75c9 |
422 | |
423 | =item I<lazy =E<gt> (1|0)> |
424 | |
68efb014 |
425 | This will tell the class to not create this slot until absolutely necessary. |
daea75c9 |
426 | If an attribute is marked as lazy it B<must> have a default supplied. |
427 | |
9e93dd19 |
428 | =item I<auto_deref =E<gt> (1|0)> |
429 | |
68efb014 |
430 | This tells the accessor whether to automatically dereference the value returned. |
9e93dd19 |
431 | This is only legal if your C<isa> option is either an C<ArrayRef> or C<HashRef>. |
432 | |
daea75c9 |
433 | =item I<trigger =E<gt> $code> |
434 | |
435 | The trigger option is a CODE reference which will be called after the value of |
436 | the attribute is set. The CODE ref will be passed the instance itself, the |
437 | updated value and the attribute meta-object (this is for more advanced fiddling |
68efb014 |
438 | and can typically be ignored in most cases). You B<cannot> have a trigger on |
cce8198b |
439 | a read-only attribute. |
daea75c9 |
440 | |
2c0cbef7 |
441 | =item I<handles =E<gt> [ @handles ]> |
442 | |
443 | There is experimental support for attribute delegation using the C<handles> |
444 | option. More docs to come later. |
445 | |
6ba6d68c |
446 | =back |
447 | |
076c81ed |
448 | =item B<before $name|@names =E<gt> sub { ... }> |
6ba6d68c |
449 | |
076c81ed |
450 | =item B<after $name|@names =E<gt> sub { ... }> |
6ba6d68c |
451 | |
076c81ed |
452 | =item B<around $name|@names =E<gt> sub { ... }> |
6ba6d68c |
453 | |
68efb014 |
454 | This three items are syntactic sugar for the before, after, and around method |
6ba6d68c |
455 | modifier features that L<Class::MOP> provides. More information on these can |
456 | be found in the L<Class::MOP> documentation for now. |
457 | |
159da176 |
458 | =item B<super> |
459 | |
68efb014 |
460 | The keyword C<super> is a no-op when called outside of an C<override> method. In |
159da176 |
461 | the context of an C<override> method, it will call the next most appropriate |
462 | superclass method with the same arguments as the original method. |
463 | |
464 | =item B<override ($name, &sub)> |
465 | |
68efb014 |
466 | An C<override> method is a way of explicitly saying "I am overriding this |
159da176 |
467 | method from my superclass". You can call C<super> within this method, and |
468 | it will work as expected. The same thing I<can> be accomplished with a normal |
68efb014 |
469 | method call and the C<SUPER::> pseudo-package; it is really your choice. |
159da176 |
470 | |
471 | =item B<inner> |
472 | |
473 | The keyword C<inner>, much like C<super>, is a no-op outside of the context of |
474 | an C<augment> method. You can think of C<inner> as being the inverse of |
68efb014 |
475 | C<super>; the details of how C<inner> and C<augment> work is best described in |
159da176 |
476 | the L<Moose::Cookbook>. |
477 | |
478 | =item B<augment ($name, &sub)> |
479 | |
68efb014 |
480 | An C<augment> method, is a way of explicitly saying "I am augmenting this |
159da176 |
481 | method from my superclass". Once again, the details of how C<inner> and |
482 | C<augment> work is best described in the L<Moose::Cookbook>. |
483 | |
6ba6d68c |
484 | =item B<confess> |
485 | |
68efb014 |
486 | This is the C<Carp::confess> function, and exported here because I use it |
6ba6d68c |
487 | all the time. This feature may change in the future, so you have been warned. |
488 | |
489 | =item B<blessed> |
490 | |
68efb014 |
491 | This is the C<Scalar::Uti::blessed> function, it is exported here because I |
6ba6d68c |
492 | use it all the time. It is highly recommended that this is used instead of |
493 | C<ref> anywhere you need to test for an object's class name. |
494 | |
495 | =back |
496 | |
31f8ec72 |
497 | =head1 UNEXPORTING FUNCTIONS |
498 | |
499 | =head2 B<unimport> |
500 | |
501 | Moose offers a way of removing the keywords it exports though the C<unimport> |
502 | method. You simply have to say C<no Moose> at the bottom of your code for this |
503 | to work. Here is an example: |
504 | |
505 | package Person; |
506 | use Moose; |
507 | |
508 | has 'first_name' => (is => 'rw', isa => 'Str'); |
509 | has 'last_name' => (is => 'rw', isa => 'Str'); |
510 | |
511 | sub full_name { |
512 | my $self = shift; |
513 | $self->first_name . ' ' . $self->last_name |
514 | } |
515 | |
516 | no Moose; # keywords are removed from the Person package |
517 | |
2c0cbef7 |
518 | =head1 MISC. |
519 | |
520 | =head2 What does Moose stand for?? |
521 | |
522 | Moose doesn't stand for one thing in particular, however, if you |
68efb014 |
523 | want, here are a few of my favorites; feel free to contribute |
2c0cbef7 |
524 | more :) |
525 | |
526 | =over 4 |
527 | |
528 | =item Make Other Object Systems Envious |
529 | |
530 | =item Makes Object Orientation So Easy |
531 | |
532 | =item Makes Object Orientation Spiffy- Er (sorry ingy) |
533 | |
534 | =item Most Other Object Systems Emasculate |
535 | |
2c0cbef7 |
536 | =item Moose Often Ovulate Sorta Early |
537 | |
2c0cbef7 |
538 | =item Moose Offers Often Super Extensions |
539 | |
540 | =item Meta Object Orientation Syntax Extensions |
541 | |
542 | =back |
543 | |
05d9eaf6 |
544 | =head1 CAVEATS |
545 | |
546 | =over 4 |
547 | |
548 | =item * |
549 | |
68efb014 |
550 | It should be noted that C<super> and C<inner> C<cannot> be used in the same |
551 | method. However, they can be combined together with the same class hierarchy; |
05d9eaf6 |
552 | see F<t/014_override_augment_inner_super.t> for an example. |
553 | |
68efb014 |
554 | The reason for this is that C<super> is only valid within a method |
05d9eaf6 |
555 | with the C<override> modifier, and C<inner> will never be valid within an |
556 | C<override> method. In fact, C<augment> will skip over any C<override> methods |
68efb014 |
557 | when searching for its appropriate C<inner>. |
05d9eaf6 |
558 | |
559 | This might seem like a restriction, but I am of the opinion that keeping these |
68efb014 |
560 | two features separate (but interoperable) actually makes them easy to use, since |
05d9eaf6 |
561 | their behavior is then easier to predict. Time will tell if I am right or not. |
562 | |
563 | =back |
564 | |
5569c072 |
565 | =head1 ACKNOWLEDGEMENTS |
566 | |
567 | =over 4 |
568 | |
54c189df |
569 | =item I blame Sam Vilain for introducing me to the insanity that is meta-models. |
5569c072 |
570 | |
54c189df |
571 | =item I blame Audrey Tang for then encouraging my meta-model habit in #perl6. |
5569c072 |
572 | |
076c81ed |
573 | =item Without Yuval "nothingmuch" Kogman this module would not be possible, |
54c189df |
574 | and it certainly wouldn't have this name ;P |
5569c072 |
575 | |
576 | =item The basis of the TypeContraints module was Rob Kinyon's idea |
577 | originally, I just ran with it. |
578 | |
076c81ed |
579 | =item Thanks to mst & chansen and the whole #moose poose for all the |
d46a48f3 |
580 | ideas/feature-requests/encouragement |
581 | |
68efb014 |
582 | =item Thanks to David "Theory" Wheeler for meta-discussions and spelling fixes. |
583 | |
5569c072 |
584 | =back |
585 | |
e90c03d0 |
586 | =head1 SEE ALSO |
587 | |
588 | =over 4 |
589 | |
6ba6d68c |
590 | =item L<Class::MOP> documentation |
591 | |
592 | =item The #moose channel on irc.perl.org |
593 | |
e67a0fca |
594 | =item The Moose mailing list - moose@perl.org |
595 | |
e90c03d0 |
596 | =item L<http://forum2.org/moose/> |
597 | |
159da176 |
598 | =item L<http://www.cs.utah.edu/plt/publications/oopsla04-gff.pdf> |
599 | |
600 | This paper (suggested by lbr on #moose) was what lead to the implementation |
601 | of the C<super>/C<overrride> and C<inner>/C<augment> features. If you really |
602 | want to understand this feature, I suggest you read this. |
603 | |
e90c03d0 |
604 | =back |
605 | |
fcd84ca9 |
606 | =head1 BUGS |
607 | |
608 | All complex software has bugs lurking in it, and this module is no |
609 | exception. If you find a bug please either email me, or add the bug |
610 | to cpan-RT. |
611 | |
fcd84ca9 |
612 | =head1 AUTHOR |
613 | |
614 | Stevan Little E<lt>stevan@iinteractive.comE<gt> |
615 | |
db1ab48d |
616 | Christian Hansen E<lt>chansen@cpan.orgE<gt> |
617 | |
618 | Yuval Kogman E<lt>nothingmuch@woobling.orgE<gt> |
98aae381 |
619 | |
fcd84ca9 |
620 | =head1 COPYRIGHT AND LICENSE |
621 | |
622 | Copyright 2006 by Infinity Interactive, Inc. |
623 | |
624 | L<http://www.iinteractive.com> |
625 | |
626 | This library is free software; you can redistribute it and/or modify |
627 | it under the same terms as Perl itself. |
628 | |
ddd0ec20 |
629 | =cut |