Commit | Line | Data |
94b19069 |
1 | |
2 | package Class::MOP; |
3 | |
4 | use strict; |
5 | use warnings; |
6 | |
5a2932cf |
7 | use 5.008; |
8 | |
3cf322a0 |
9 | use MRO::Compat; |
10 | |
4c105333 |
11 | use Carp 'confess'; |
12 | use Scalar::Util 'weaken'; |
8b978dd5 |
13 | |
fc4f8f91 |
14 | |
0531f510 |
15 | use Class::MOP::Class; |
16 | use Class::MOP::Attribute; |
17 | use Class::MOP::Method; |
18 | |
19 | use Class::MOP::Immutable; |
20 | |
b1f5f41d |
21 | BEGIN { |
11b56828 |
22 | *IS_RUNNING_ON_5_10 = ($] < 5.009_005) |
23 | ? sub () { 0 } |
4c105333 |
24 | : sub () { 1 }; |
46b23b44 |
25 | |
9efe16ca |
26 | *HAVE_ISAREV = defined(&mro::get_isarev) |
27 | ? sub () { 1 } |
28 | : sub () { 1 }; |
3ecd1b25 |
29 | |
30 | # this is either part of core or set up appropriately by MRO::Compat |
31 | *check_package_cache_flag = \&mro::get_pkg_gen; |
b1f5f41d |
32 | } |
e0e4674a |
33 | |
c808e3d5 |
34 | our $VERSION = '0.67'; |
8a7085c1 |
35 | our $XS_VERSION = $VERSION; |
d519662a |
36 | $VERSION = eval $VERSION; |
fc4f8f91 |
37 | our $AUTHORITY = 'cpan:STEVAN'; |
38 | |
0531f510 |
39 | # after that everything is loaded, if we're allowed try to load faster XS |
40 | # versions of various things |
d7bda114 |
41 | _try_load_xs() or _load_pure_perl(); |
42 | |
43 | sub _try_load_xs { |
44 | return if $ENV{CLASS_MOP_NO_XS}; |
45 | |
0531f510 |
46 | my $e = do { |
47 | local $@; |
48 | eval { |
49 | require XSLoader; |
d7bda114 |
50 | # just doing this - no warnings 'redefine' - doesn't work |
51 | # for some reason |
52 | local $^W = 0; |
8a7085c1 |
53 | __PACKAGE__->XSLoader::load($XS_VERSION); |
3ecd1b25 |
54 | |
55 | require Sub::Name; |
56 | Sub::Name->import(qw(subname)); |
57 | |
58 | require Devel::GlobalDestruction; |
59 | Devel::GlobalDestruction->import("in_global_destruction"); |
0531f510 |
60 | }; |
61 | $@; |
62 | }; |
15273f3c |
63 | |
0531f510 |
64 | die $e if $e && $e !~ /object version|loadable object/; |
d7bda114 |
65 | |
66 | return $e ? 0 : 1; |
0531f510 |
67 | } |
15273f3c |
68 | |
d7bda114 |
69 | sub _load_pure_perl { |
70 | require Sub::Identify; |
71 | Sub::Identify->import('get_code_info'); |
3ecd1b25 |
72 | |
73 | *subname = sub { $_[1] }; |
74 | *in_global_destruction = sub () { !1 } |
d7bda114 |
75 | } |
76 | |
77 | |
be7677c7 |
78 | { |
79 | # Metaclasses are singletons, so we cache them here. |
80 | # there is no need to worry about destruction though |
81 | # because they should die only when the program dies. |
82 | # After all, do package definitions even get reaped? |
1d68af04 |
83 | my %METAS; |
84 | |
85 | # means of accessing all the metaclasses that have |
be7677c7 |
86 | # been initialized thus far (for mugwumps obj browser) |
1d68af04 |
87 | sub get_all_metaclasses { %METAS } |
88 | sub get_all_metaclass_instances { values %METAS } |
89 | sub get_all_metaclass_names { keys %METAS } |
be7677c7 |
90 | sub get_metaclass_by_name { $METAS{$_[0]} } |
1d68af04 |
91 | sub store_metaclass_by_name { $METAS{$_[0]} = $_[1] } |
92 | sub weaken_metaclass { weaken($METAS{$_[0]}) } |
be7677c7 |
93 | sub does_metaclass_exist { exists $METAS{$_[0]} && defined $METAS{$_[0]} } |
1d68af04 |
94 | sub remove_metaclass_by_name { $METAS{$_[0]} = undef } |
95 | |
be7677c7 |
96 | # NOTE: |
1d68af04 |
97 | # We only cache metaclasses, meaning instances of |
98 | # Class::MOP::Class. We do not cache instance of |
be7677c7 |
99 | # Class::MOP::Package or Class::MOP::Module. Mostly |
1d68af04 |
100 | # because I don't yet see a good reason to do so. |
be7677c7 |
101 | } |
102 | |
448b6e55 |
103 | sub load_class { |
104 | my $class = shift; |
ab5e2f48 |
105 | |
2c0fb064 |
106 | unless ( _is_valid_class_name($class) ) { |
ab5e2f48 |
107 | my $display = defined($class) ? $class : 'undef'; |
108 | confess "Invalid class name ($display)"; |
109 | } |
110 | |
07940968 |
111 | # if the class is not already loaded in the symbol table.. |
112 | unless (is_class_loaded($class)) { |
113 | # require it |
a6844bfb |
114 | my $file = $class . '.pm'; |
115 | $file =~ s{::}{/}g; |
116 | my $e = do { local $@; eval { require($file) }; $@ }; |
1b8d9282 |
117 | confess "Could not load class ($class) because : $e" if $e; |
07940968 |
118 | } |
119 | |
4c7e2bf4 |
120 | get_metaclass_by_name($class) || $class if defined wantarray; |
448b6e55 |
121 | } |
122 | |
2c0fb064 |
123 | sub _is_valid_class_name { |
124 | my $class = shift; |
125 | |
126 | return 0 if ref($class); |
127 | return 0 unless defined($class); |
128 | return 0 unless length($class); |
129 | |
130 | return 1 if $class =~ /^\w+(?:::\w+)*$/; |
131 | |
132 | return 0; |
133 | } |
134 | |
448b6e55 |
135 | sub is_class_loaded { |
c1d5345a |
136 | my $class = shift; |
26fcef27 |
137 | |
138 | return 0 if ref($class) || !defined($class) || !length($class); |
139 | |
140 | # walk the symbol table tree to avoid autovififying |
141 | # \*{${main::}{"Foo::"}} == \*main::Foo:: |
142 | |
143 | my $pack = \*::; |
144 | foreach my $part (split('::', $class)) { |
145 | return 0 unless exists ${$$pack}{"${part}::"}; |
146 | $pack = \*{${$$pack}{"${part}::"}}; |
c1d5345a |
147 | } |
26fcef27 |
148 | |
149 | # check for $VERSION or @ISA |
150 | return 1 if exists ${$$pack}{VERSION} |
151 | && defined *{${$$pack}{VERSION}}{SCALAR}; |
152 | return 1 if exists ${$$pack}{ISA} |
153 | && defined *{${$$pack}{ISA}}{ARRAY}; |
154 | |
155 | # check for any method |
156 | foreach ( keys %{$$pack} ) { |
157 | next if substr($_, -2, 2) eq '::'; |
d5be3722 |
158 | |
159 | my $glob = ${$$pack}{$_} || next; |
160 | |
9e275e86 |
161 | # constant subs |
d5be3722 |
162 | if ( IS_RUNNING_ON_5_10 ) { |
163 | return 1 if ref $glob eq 'SCALAR'; |
164 | } |
165 | |
166 | return 1 if defined *{$glob}{CODE}; |
26fcef27 |
167 | } |
168 | |
169 | # fail |
c1d5345a |
170 | return 0; |
448b6e55 |
171 | } |
172 | |
173 | |
aa448b16 |
174 | ## ---------------------------------------------------------------------------- |
175 | ## Setting up our environment ... |
176 | ## ---------------------------------------------------------------------------- |
1d68af04 |
177 | ## Class::MOP needs to have a few things in the global perl environment so |
aa448b16 |
178 | ## that it can operate effectively. Those things are done here. |
179 | ## ---------------------------------------------------------------------------- |
180 | |
3bf7644b |
181 | # ... nothing yet actually ;) |
8b978dd5 |
182 | |
b51af7f9 |
183 | ## ---------------------------------------------------------------------------- |
1d68af04 |
184 | ## Bootstrapping |
b51af7f9 |
185 | ## ---------------------------------------------------------------------------- |
1d68af04 |
186 | ## The code below here is to bootstrap our MOP with itself. This is also |
b51af7f9 |
187 | ## sometimes called "tying the knot". By doing this, we make it much easier |
188 | ## to extend the MOP through subclassing and such since now you can use the |
1d68af04 |
189 | ## MOP itself to extend itself. |
190 | ## |
b51af7f9 |
191 | ## Yes, I know, thats weird and insane, but it's a good thing, trust me :) |
1d68af04 |
192 | ## ---------------------------------------------------------------------------- |
727919c5 |
193 | |
1d68af04 |
194 | # We need to add in the meta-attributes here so that |
195 | # any subclass of Class::MOP::* will be able to |
727919c5 |
196 | # inherit them using &construct_instance |
197 | |
f0480c45 |
198 | ## -------------------------------------------------------- |
6d5355c3 |
199 | ## Class::MOP::Package |
727919c5 |
200 | |
6d5355c3 |
201 | Class::MOP::Package->meta->add_attribute( |
8683db0e |
202 | Class::MOP::Attribute->new('package' => ( |
b880e0de |
203 | reader => { |
1d68af04 |
204 | # NOTE: we need to do this in order |
205 | # for the instance meta-object to |
b880e0de |
206 | # not fall into meta-circular death |
1d68af04 |
207 | # |
ce2ae40f |
208 | # we just alias the original method |
1d68af04 |
209 | # rather than re-produce it here |
ce2ae40f |
210 | 'name' => \&Class::MOP::Package::name |
b880e0de |
211 | }, |
727919c5 |
212 | )) |
213 | ); |
214 | |
a5e51f0b |
215 | Class::MOP::Package->meta->add_attribute( |
8683db0e |
216 | Class::MOP::Attribute->new('namespace' => ( |
a5e51f0b |
217 | reader => { |
56dcfc1a |
218 | # NOTE: |
ce2ae40f |
219 | # we just alias the original method |
220 | # rather than re-produce it here |
221 | 'namespace' => \&Class::MOP::Package::namespace |
a5e51f0b |
222 | }, |
2e877f58 |
223 | init_arg => undef, |
c4260b45 |
224 | default => sub { \undef } |
a5e51f0b |
225 | )) |
226 | ); |
227 | |
f0480c45 |
228 | ## -------------------------------------------------------- |
229 | ## Class::MOP::Module |
230 | |
231 | # NOTE: |
1d68af04 |
232 | # yeah this is kind of stretching things a bit, |
f0480c45 |
233 | # but truthfully the version should be an attribute |
1d68af04 |
234 | # of the Module, the weirdness comes from having to |
235 | # stick to Perl 5 convention and store it in the |
236 | # $VERSION package variable. Basically if you just |
237 | # squint at it, it will look how you want it to look. |
f0480c45 |
238 | # Either as a package variable, or as a attribute of |
239 | # the metaclass, isn't abstraction great :) |
240 | |
241 | Class::MOP::Module->meta->add_attribute( |
8683db0e |
242 | Class::MOP::Attribute->new('version' => ( |
f0480c45 |
243 | reader => { |
ce2ae40f |
244 | # NOTE: |
245 | # we just alias the original method |
1d68af04 |
246 | # rather than re-produce it here |
ce2ae40f |
247 | 'version' => \&Class::MOP::Module::version |
f0480c45 |
248 | }, |
2e877f58 |
249 | init_arg => undef, |
c4260b45 |
250 | default => sub { \undef } |
f0480c45 |
251 | )) |
252 | ); |
253 | |
254 | # NOTE: |
1d68af04 |
255 | # By following the same conventions as version here, |
256 | # we are opening up the possibility that people can |
257 | # use the $AUTHORITY in non-Class::MOP modules as |
258 | # well. |
f0480c45 |
259 | |
260 | Class::MOP::Module->meta->add_attribute( |
8683db0e |
261 | Class::MOP::Attribute->new('authority' => ( |
f0480c45 |
262 | reader => { |
ce2ae40f |
263 | # NOTE: |
264 | # we just alias the original method |
1d68af04 |
265 | # rather than re-produce it here |
ce2ae40f |
266 | 'authority' => \&Class::MOP::Module::authority |
1d68af04 |
267 | }, |
2e877f58 |
268 | init_arg => undef, |
c4260b45 |
269 | default => sub { \undef } |
f0480c45 |
270 | )) |
271 | ); |
272 | |
273 | ## -------------------------------------------------------- |
6d5355c3 |
274 | ## Class::MOP::Class |
275 | |
727919c5 |
276 | Class::MOP::Class->meta->add_attribute( |
8683db0e |
277 | Class::MOP::Attribute->new('attributes' => ( |
f7259199 |
278 | reader => { |
1d68af04 |
279 | # NOTE: we need to do this in order |
280 | # for the instance meta-object to |
281 | # not fall into meta-circular death |
282 | # |
ce2ae40f |
283 | # we just alias the original method |
1d68af04 |
284 | # rather than re-produce it here |
ce2ae40f |
285 | 'get_attribute_map' => \&Class::MOP::Class::get_attribute_map |
f7259199 |
286 | }, |
727919c5 |
287 | default => sub { {} } |
288 | )) |
289 | ); |
290 | |
351bd7d4 |
291 | Class::MOP::Class->meta->add_attribute( |
8683db0e |
292 | Class::MOP::Attribute->new('methods' => ( |
1d68af04 |
293 | reader => { |
ce2ae40f |
294 | # NOTE: |
295 | # we just alias the original method |
1d68af04 |
296 | # rather than re-produce it here |
ce2ae40f |
297 | 'get_method_map' => \&Class::MOP::Class::get_method_map |
92330ee2 |
298 | }, |
7855ddba |
299 | default => sub { {} } |
c4260b45 |
300 | )) |
301 | ); |
302 | |
303 | Class::MOP::Class->meta->add_attribute( |
8683db0e |
304 | Class::MOP::Attribute->new('superclasses' => ( |
c23184fc |
305 | accessor => { |
306 | # NOTE: |
307 | # we just alias the original method |
1d68af04 |
308 | # rather than re-produce it here |
c23184fc |
309 | 'superclasses' => \&Class::MOP::Class::superclasses |
310 | }, |
2e877f58 |
311 | init_arg => undef, |
c23184fc |
312 | default => sub { \undef } |
313 | )) |
314 | ); |
315 | |
316 | Class::MOP::Class->meta->add_attribute( |
8683db0e |
317 | Class::MOP::Attribute->new('attribute_metaclass' => ( |
1d68af04 |
318 | reader => { |
6d2118a4 |
319 | # NOTE: |
320 | # we just alias the original method |
1d68af04 |
321 | # rather than re-produce it here |
6d2118a4 |
322 | 'attribute_metaclass' => \&Class::MOP::Class::attribute_metaclass |
1d68af04 |
323 | }, |
351bd7d4 |
324 | default => 'Class::MOP::Attribute', |
325 | )) |
326 | ); |
327 | |
328 | Class::MOP::Class->meta->add_attribute( |
8683db0e |
329 | Class::MOP::Attribute->new('method_metaclass' => ( |
1d68af04 |
330 | reader => { |
6d2118a4 |
331 | # NOTE: |
332 | # we just alias the original method |
1d68af04 |
333 | # rather than re-produce it here |
6d2118a4 |
334 | 'method_metaclass' => \&Class::MOP::Class::method_metaclass |
335 | }, |
1d68af04 |
336 | default => 'Class::MOP::Method', |
351bd7d4 |
337 | )) |
338 | ); |
339 | |
2bab2be6 |
340 | Class::MOP::Class->meta->add_attribute( |
8683db0e |
341 | Class::MOP::Attribute->new('instance_metaclass' => ( |
b880e0de |
342 | reader => { |
1d68af04 |
343 | # NOTE: we need to do this in order |
344 | # for the instance meta-object to |
345 | # not fall into meta-circular death |
346 | # |
ce2ae40f |
347 | # we just alias the original method |
1d68af04 |
348 | # rather than re-produce it here |
ce2ae40f |
349 | 'instance_metaclass' => \&Class::MOP::Class::instance_metaclass |
b880e0de |
350 | }, |
1d68af04 |
351 | default => 'Class::MOP::Instance', |
2bab2be6 |
352 | )) |
353 | ); |
354 | |
9d6dce77 |
355 | # NOTE: |
1d68af04 |
356 | # we don't actually need to tie the knot with |
357 | # Class::MOP::Class here, it is actually handled |
358 | # within Class::MOP::Class itself in the |
359 | # construct_class_instance method. |
9d6dce77 |
360 | |
f0480c45 |
361 | ## -------------------------------------------------------- |
727919c5 |
362 | ## Class::MOP::Attribute |
363 | |
7b31baf4 |
364 | Class::MOP::Attribute->meta->add_attribute( |
8683db0e |
365 | Class::MOP::Attribute->new('name' => ( |
c23184fc |
366 | reader => { |
1d68af04 |
367 | # NOTE: we need to do this in order |
368 | # for the instance meta-object to |
369 | # not fall into meta-circular death |
370 | # |
ce2ae40f |
371 | # we just alias the original method |
1d68af04 |
372 | # rather than re-produce it here |
ce2ae40f |
373 | 'name' => \&Class::MOP::Attribute::name |
b880e0de |
374 | } |
7b31baf4 |
375 | )) |
376 | ); |
377 | |
378 | Class::MOP::Attribute->meta->add_attribute( |
8683db0e |
379 | Class::MOP::Attribute->new('associated_class' => ( |
c23184fc |
380 | reader => { |
1d68af04 |
381 | # NOTE: we need to do this in order |
382 | # for the instance meta-object to |
383 | # not fall into meta-circular death |
384 | # |
ce2ae40f |
385 | # we just alias the original method |
1d68af04 |
386 | # rather than re-produce it here |
ce2ae40f |
387 | 'associated_class' => \&Class::MOP::Attribute::associated_class |
b880e0de |
388 | } |
7b31baf4 |
389 | )) |
390 | ); |
391 | |
392 | Class::MOP::Attribute->meta->add_attribute( |
8683db0e |
393 | Class::MOP::Attribute->new('accessor' => ( |
6d2118a4 |
394 | reader => { 'accessor' => \&Class::MOP::Attribute::accessor }, |
395 | predicate => { 'has_accessor' => \&Class::MOP::Attribute::has_accessor }, |
7b31baf4 |
396 | )) |
397 | ); |
398 | |
399 | Class::MOP::Attribute->meta->add_attribute( |
8683db0e |
400 | Class::MOP::Attribute->new('reader' => ( |
6d2118a4 |
401 | reader => { 'reader' => \&Class::MOP::Attribute::reader }, |
402 | predicate => { 'has_reader' => \&Class::MOP::Attribute::has_reader }, |
7b31baf4 |
403 | )) |
404 | ); |
405 | |
406 | Class::MOP::Attribute->meta->add_attribute( |
8683db0e |
407 | Class::MOP::Attribute->new('initializer' => ( |
8ee74136 |
408 | reader => { 'initializer' => \&Class::MOP::Attribute::initializer }, |
409 | predicate => { 'has_initializer' => \&Class::MOP::Attribute::has_initializer }, |
0ab65f99 |
410 | )) |
411 | ); |
412 | |
413 | Class::MOP::Attribute->meta->add_attribute( |
8683db0e |
414 | Class::MOP::Attribute->new('writer' => ( |
6d2118a4 |
415 | reader => { 'writer' => \&Class::MOP::Attribute::writer }, |
416 | predicate => { 'has_writer' => \&Class::MOP::Attribute::has_writer }, |
7b31baf4 |
417 | )) |
418 | ); |
419 | |
420 | Class::MOP::Attribute->meta->add_attribute( |
8683db0e |
421 | Class::MOP::Attribute->new('predicate' => ( |
6d2118a4 |
422 | reader => { 'predicate' => \&Class::MOP::Attribute::predicate }, |
423 | predicate => { 'has_predicate' => \&Class::MOP::Attribute::has_predicate }, |
7b31baf4 |
424 | )) |
425 | ); |
426 | |
427 | Class::MOP::Attribute->meta->add_attribute( |
8683db0e |
428 | Class::MOP::Attribute->new('clearer' => ( |
6d2118a4 |
429 | reader => { 'clearer' => \&Class::MOP::Attribute::clearer }, |
430 | predicate => { 'has_clearer' => \&Class::MOP::Attribute::has_clearer }, |
7d28758b |
431 | )) |
432 | ); |
433 | |
434 | Class::MOP::Attribute->meta->add_attribute( |
8683db0e |
435 | Class::MOP::Attribute->new('builder' => ( |
1d68af04 |
436 | reader => { 'builder' => \&Class::MOP::Attribute::builder }, |
437 | predicate => { 'has_builder' => \&Class::MOP::Attribute::has_builder }, |
438 | )) |
439 | ); |
440 | |
441 | Class::MOP::Attribute->meta->add_attribute( |
8683db0e |
442 | Class::MOP::Attribute->new('init_arg' => ( |
6d2118a4 |
443 | reader => { 'init_arg' => \&Class::MOP::Attribute::init_arg }, |
444 | predicate => { 'has_init_arg' => \&Class::MOP::Attribute::has_init_arg }, |
7b31baf4 |
445 | )) |
446 | ); |
447 | |
448 | Class::MOP::Attribute->meta->add_attribute( |
8683db0e |
449 | Class::MOP::Attribute->new('default' => ( |
7b31baf4 |
450 | # default has a custom 'reader' method ... |
1d68af04 |
451 | predicate => { 'has_default' => \&Class::MOP::Attribute::has_default }, |
7b31baf4 |
452 | )) |
453 | ); |
454 | |
3545c727 |
455 | Class::MOP::Attribute->meta->add_attribute( |
8683db0e |
456 | Class::MOP::Attribute->new('associated_methods' => ( |
c23184fc |
457 | reader => { 'associated_methods' => \&Class::MOP::Attribute::associated_methods }, |
1d68af04 |
458 | default => sub { [] } |
3545c727 |
459 | )) |
460 | ); |
727919c5 |
461 | |
5659d76e |
462 | Class::MOP::Attribute->meta->add_method('clone' => sub { |
a740253a |
463 | my $self = shift; |
1d68af04 |
464 | $self->meta->clone_object($self, @_); |
727919c5 |
465 | }); |
466 | |
f0480c45 |
467 | ## -------------------------------------------------------- |
b6164407 |
468 | ## Class::MOP::Method |
b6164407 |
469 | Class::MOP::Method->meta->add_attribute( |
8683db0e |
470 | Class::MOP::Attribute->new('body' => ( |
c23184fc |
471 | reader => { 'body' => \&Class::MOP::Method::body }, |
b6164407 |
472 | )) |
473 | ); |
474 | |
4c105333 |
475 | Class::MOP::Method->meta->add_attribute( |
5e607260 |
476 | Class::MOP::Attribute->new('associated_metaclass' => ( |
5e607260 |
477 | reader => { 'associated_metaclass' => \&Class::MOP::Method::associated_metaclass }, |
478 | )) |
479 | ); |
480 | |
481 | Class::MOP::Method->meta->add_attribute( |
8683db0e |
482 | Class::MOP::Attribute->new('package_name' => ( |
4c105333 |
483 | reader => { 'package_name' => \&Class::MOP::Method::package_name }, |
484 | )) |
485 | ); |
486 | |
487 | Class::MOP::Method->meta->add_attribute( |
8683db0e |
488 | Class::MOP::Attribute->new('name' => ( |
4c105333 |
489 | reader => { 'name' => \&Class::MOP::Method::name }, |
490 | )) |
491 | ); |
492 | |
2226a8b0 |
493 | Class::MOP::Method->meta->add_attribute( |
494 | Class::MOP::Attribute->new('original_method' => ( |
495 | reader => { 'original_method' => \&Class::MOP::Method::original_method }, |
496 | writer => { '_set_original_method' => \&Class::MOP::Method::_set_original_method }, |
497 | )) |
498 | ); |
499 | |
4c105333 |
500 | Class::MOP::Method->meta->add_method('clone' => sub { |
501 | my $self = shift; |
2226a8b0 |
502 | my $clone = $self->meta->clone_object($self, @_); |
503 | $clone->_set_original_method($self); |
504 | return $clone; |
4c105333 |
505 | }); |
506 | |
b6164407 |
507 | ## -------------------------------------------------------- |
508 | ## Class::MOP::Method::Wrapped |
509 | |
510 | # NOTE: |
1d68af04 |
511 | # the way this item is initialized, this |
512 | # really does not follow the standard |
513 | # practices of attributes, but we put |
b6164407 |
514 | # it here for completeness |
515 | Class::MOP::Method::Wrapped->meta->add_attribute( |
8683db0e |
516 | Class::MOP::Attribute->new('modifier_table') |
b6164407 |
517 | ); |
518 | |
519 | ## -------------------------------------------------------- |
565f0cbb |
520 | ## Class::MOP::Method::Generated |
521 | |
522 | Class::MOP::Method::Generated->meta->add_attribute( |
8683db0e |
523 | Class::MOP::Attribute->new('is_inline' => ( |
565f0cbb |
524 | reader => { 'is_inline' => \&Class::MOP::Method::Generated::is_inline }, |
4c105333 |
525 | default => 0, |
1d68af04 |
526 | )) |
565f0cbb |
527 | ); |
528 | |
529 | ## -------------------------------------------------------- |
d90b42a6 |
530 | ## Class::MOP::Method::Accessor |
531 | |
532 | Class::MOP::Method::Accessor->meta->add_attribute( |
8683db0e |
533 | Class::MOP::Attribute->new('attribute' => ( |
1d68af04 |
534 | reader => { |
535 | 'associated_attribute' => \&Class::MOP::Method::Accessor::associated_attribute |
d90b42a6 |
536 | }, |
1d68af04 |
537 | )) |
d90b42a6 |
538 | ); |
539 | |
540 | Class::MOP::Method::Accessor->meta->add_attribute( |
8683db0e |
541 | Class::MOP::Attribute->new('accessor_type' => ( |
c23184fc |
542 | reader => { 'accessor_type' => \&Class::MOP::Method::Accessor::accessor_type }, |
1d68af04 |
543 | )) |
d90b42a6 |
544 | ); |
545 | |
d90b42a6 |
546 | ## -------------------------------------------------------- |
547 | ## Class::MOP::Method::Constructor |
548 | |
549 | Class::MOP::Method::Constructor->meta->add_attribute( |
8683db0e |
550 | Class::MOP::Attribute->new('options' => ( |
1d68af04 |
551 | reader => { |
552 | 'options' => \&Class::MOP::Method::Constructor::options |
d90b42a6 |
553 | }, |
4c105333 |
554 | default => sub { +{} } |
1d68af04 |
555 | )) |
d90b42a6 |
556 | ); |
557 | |
558 | Class::MOP::Method::Constructor->meta->add_attribute( |
8683db0e |
559 | Class::MOP::Attribute->new('associated_metaclass' => ( |
e8a38403 |
560 | init_arg => "metaclass", # FIXME alias and rename |
1d68af04 |
561 | reader => { |
562 | 'associated_metaclass' => \&Class::MOP::Method::Constructor::associated_metaclass |
563 | }, |
564 | )) |
d90b42a6 |
565 | ); |
566 | |
567 | ## -------------------------------------------------------- |
86482605 |
568 | ## Class::MOP::Instance |
569 | |
570 | # NOTE: |
1d68af04 |
571 | # these don't yet do much of anything, but are just |
86482605 |
572 | # included for completeness |
573 | |
574 | Class::MOP::Instance->meta->add_attribute( |
74890687 |
575 | Class::MOP::Attribute->new('associated_metaclass', |
576 | reader => { associated_metaclass => \&Class::MOP::Instance::associated_metaclass }, |
577 | ), |
86482605 |
578 | ); |
579 | |
580 | Class::MOP::Instance->meta->add_attribute( |
74890687 |
581 | Class::MOP::Attribute->new('_class_name', |
582 | init_arg => undef, |
583 | reader => { _class_name => \&Class::MOP::Instance::_class_name }, |
584 | #lazy => 1, # not yet supported by Class::MOP but out our version does it anyway |
585 | #default => sub { $_[0]->associated_metaclass->name }, |
586 | ), |
587 | ); |
588 | |
589 | Class::MOP::Instance->meta->add_attribute( |
590 | Class::MOP::Attribute->new('attributes', |
0b5d46da |
591 | reader => { attributes => \&Class::MOP::Instance::get_all_attributes }, |
74890687 |
592 | ), |
32bfc810 |
593 | ); |
594 | |
595 | Class::MOP::Instance->meta->add_attribute( |
74890687 |
596 | Class::MOP::Attribute->new('slots', |
597 | reader => { slots => \&Class::MOP::Instance::slots }, |
598 | ), |
86482605 |
599 | ); |
600 | |
63d08a9e |
601 | Class::MOP::Instance->meta->add_attribute( |
74890687 |
602 | Class::MOP::Attribute->new('slot_hash', |
603 | reader => { slot_hash => \&Class::MOP::Instance::slot_hash }, |
604 | ), |
63d08a9e |
605 | ); |
606 | |
607 | |
caa051fa |
608 | # we need the meta instance of the meta instance to be created now, in order |
609 | # for the constructor to be able to use it |
610 | Class::MOP::Instance->meta->get_meta_instance; |
611 | |
caa051fa |
612 | # pretend the add_method never happenned. it hasn't yet affected anything |
613 | undef Class::MOP::Instance->meta->{_package_cache_flag}; |
614 | |
86482605 |
615 | ## -------------------------------------------------------- |
f0480c45 |
616 | ## Now close all the Class::MOP::* classes |
4d47b77f |
617 | |
0b9372a2 |
618 | # NOTE: |
1d68af04 |
619 | # we don't need to inline the |
620 | # constructors or the accessors |
621 | # this only lengthens the compile |
622 | # time of the MOP, and gives us |
0b9372a2 |
623 | # no actual benefits. |
624 | |
625 | $_->meta->make_immutable( |
6c2f6b5c |
626 | inline_constructor => 1, |
627 | replace_constructor => 1, |
628 | constructor_name => "_new", |
45582002 |
629 | inline_accessors => 0, |
0b9372a2 |
630 | ) for qw/ |
1d68af04 |
631 | Class::MOP::Package |
632 | Class::MOP::Module |
633 | Class::MOP::Class |
634 | |
0b9372a2 |
635 | Class::MOP::Attribute |
1d68af04 |
636 | Class::MOP::Method |
637 | Class::MOP::Instance |
638 | |
639 | Class::MOP::Object |
0b9372a2 |
640 | |
565f0cbb |
641 | Class::MOP::Method::Generated |
1d68af04 |
642 | |
ba38bf08 |
643 | Class::MOP::Method::Accessor |
1d68af04 |
644 | Class::MOP::Method::Constructor |
645 | Class::MOP::Method::Wrapped |
0b9372a2 |
646 | /; |
b6164407 |
647 | |
94b19069 |
648 | 1; |
649 | |
650 | __END__ |
651 | |
652 | =pod |
653 | |
1d68af04 |
654 | =head1 NAME |
94b19069 |
655 | |
656 | Class::MOP - A Meta Object Protocol for Perl 5 |
657 | |
94b19069 |
658 | =head1 DESCRIPTON |
659 | |
127d39a7 |
660 | This module is a fully functioning meta object protocol for the |
1d68af04 |
661 | Perl 5 object system. It makes no attempt to change the behavior or |
662 | characteristics of the Perl 5 object system, only to create a |
27e31eaf |
663 | protocol for its manipulation and introspection. |
94b19069 |
664 | |
1d68af04 |
665 | That said, it does attempt to create the tools for building a rich |
666 | set of extensions to the Perl 5 object system. Every attempt has been |
667 | made for these tools to keep to the spirit of the Perl 5 object |
94b19069 |
668 | system that we all know and love. |
669 | |
1d68af04 |
670 | This documentation is admittedly sparse on details, as time permits |
671 | I will try to improve them. For now, I suggest looking at the items |
672 | listed in the L<SEE ALSO> section for more information. In particular |
673 | the book "The Art of the Meta Object Protocol" was very influential |
40483095 |
674 | in the development of this system. |
675 | |
bfe4d0fc |
676 | =head2 What is a Meta Object Protocol? |
677 | |
1d68af04 |
678 | A meta object protocol is an API to an object system. |
bfe4d0fc |
679 | |
1d68af04 |
680 | To be more specific, it is a set of abstractions of the components of |
681 | an object system (typically things like; classes, object, methods, |
682 | object attributes, etc.). These abstractions can then be used to both |
bfe4d0fc |
683 | inspect and manipulate the object system which they describe. |
684 | |
1d68af04 |
685 | It can be said that there are two MOPs for any object system; the |
686 | implicit MOP, and the explicit MOP. The implicit MOP handles things |
687 | like method dispatch or inheritance, which happen automatically as |
688 | part of how the object system works. The explicit MOP typically |
689 | handles the introspection/reflection features of the object system. |
690 | All object systems have implicit MOPs, without one, they would not |
691 | work. Explict MOPs however as less common, and depending on the |
692 | language can vary from restrictive (Reflection in Java or C#) to |
693 | wide open (CLOS is a perfect example). |
bfe4d0fc |
694 | |
e16da3e6 |
695 | =head2 Yet Another Class Builder!! Why? |
696 | |
1d68af04 |
697 | This is B<not> a class builder so much as it is a I<class builder |
698 | B<builder>>. My intent is that an end user does not use this module |
699 | directly, but instead this module is used by module authors to |
700 | build extensions and features onto the Perl 5 object system. |
e16da3e6 |
701 | |
94b19069 |
702 | =head2 Who is this module for? |
703 | |
1d68af04 |
704 | This module is specifically for anyone who has ever created or |
705 | wanted to create a module for the Class:: namespace. The tools which |
706 | this module will provide will hopefully make it easier to do more |
707 | complex things with Perl 5 classes by removing such barriers as |
708 | the need to hack the symbol tables, or understand the fine details |
709 | of method dispatch. |
94b19069 |
710 | |
bfe4d0fc |
711 | =head2 What changes do I have to make to use this module? |
712 | |
1d68af04 |
713 | This module was designed to be as unintrusive as possible. Many of |
714 | its features are accessible without B<any> change to your existsing |
715 | code at all. It is meant to be a compliment to your existing code and |
716 | not an intrusion on your code base. Unlike many other B<Class::> |
717 | modules, this module B<does not> require you subclass it, or even that |
718 | you C<use> it in within your module's package. |
bfe4d0fc |
719 | |
1d68af04 |
720 | The only features which requires additions to your code are the |
2eb717d5 |
721 | attribute handling and instance construction features, and these are |
1d68af04 |
722 | both completely optional features. The only reason for this is because |
723 | Perl 5's object system does not actually have these features built |
2eb717d5 |
724 | in. More information about this feature can be found below. |
bfe4d0fc |
725 | |
726 | =head2 A Note about Performance? |
727 | |
1d68af04 |
728 | It is a common misconception that explict MOPs are performance drains. |
729 | But this is not a universal truth at all, it is an side-effect of |
730 | specific implementations. For instance, using Java reflection is much |
731 | slower because the JVM cannot take advantage of any compiler |
732 | optimizations, and the JVM has to deal with much more runtime type |
733 | information as well. Reflection in C# is marginally better as it was |
734 | designed into the language and runtime (the CLR). In contrast, CLOS |
735 | (the Common Lisp Object System) was built to support an explicit MOP, |
736 | and so performance is tuned for it. |
737 | |
738 | This library in particular does it's absolute best to avoid putting |
739 | B<any> drain at all upon your code's performance. In fact, by itself |
740 | it does nothing to affect your existing code. So you only pay for |
2eb717d5 |
741 | what you actually use. |
bfe4d0fc |
742 | |
550d56db |
743 | =head2 About Metaclass compatibility |
744 | |
1d68af04 |
745 | This module makes sure that all metaclasses created are both upwards |
746 | and downwards compatible. The topic of metaclass compatibility is |
747 | highly esoteric and is something only encountered when doing deep and |
748 | involved metaclass hacking. There are two basic kinds of metaclass |
749 | incompatibility; upwards and downwards. |
550d56db |
750 | |
1d68af04 |
751 | Upwards metaclass compatibility means that the metaclass of a |
752 | given class is either the same as (or a subclass of) all of the |
550d56db |
753 | class's ancestors. |
754 | |
1d68af04 |
755 | Downward metaclass compatibility means that the metaclasses of a |
756 | given class's anscestors are all either the same as (or a subclass |
550d56db |
757 | of) that metaclass. |
758 | |
1d68af04 |
759 | Here is a diagram showing a set of two classes (C<A> and C<B>) and |
760 | two metaclasses (C<Meta::A> and C<Meta::B>) which have correct |
550d56db |
761 | metaclass compatibility both upwards and downwards. |
762 | |
763 | +---------+ +---------+ |
764 | | Meta::A |<----| Meta::B | <....... (instance of ) |
1d68af04 |
765 | +---------+ +---------+ <------- (inherits from) |
550d56db |
766 | ^ ^ |
767 | : : |
768 | +---------+ +---------+ |
769 | | A |<----| B | |
770 | +---------+ +---------+ |
771 | |
1d68af04 |
772 | As I said this is a highly esoteric topic and one you will only run |
773 | into if you do a lot of subclassing of B<Class::MOP::Class>. If you |
774 | are interested in why this is an issue see the paper |
775 | I<Uniform and safe metaclass composition> linked to in the |
550d56db |
776 | L<SEE ALSO> section of this document. |
777 | |
aa448b16 |
778 | =head2 Using custom metaclasses |
779 | |
1d68af04 |
780 | Always use the metaclass pragma when using a custom metaclass, this |
781 | will ensure the proper initialization order and not accidentely |
782 | create an incorrect type of metaclass for you. This is a very rare |
783 | problem, and one which can only occur if you are doing deep metaclass |
aa448b16 |
784 | programming. So in other words, don't worry about it. |
785 | |
94b19069 |
786 | =head1 PROTOCOLS |
787 | |
127d39a7 |
788 | The protocol is divided into 4 main sub-protocols: |
94b19069 |
789 | |
790 | =over 4 |
791 | |
792 | =item The Class protocol |
793 | |
1d68af04 |
794 | This provides a means of manipulating and introspecting a Perl 5 |
795 | class. It handles all of symbol table hacking for you, and provides |
94b19069 |
796 | a rich set of methods that go beyond simple package introspection. |
797 | |
552e3d24 |
798 | See L<Class::MOP::Class> for more details. |
799 | |
94b19069 |
800 | =item The Attribute protocol |
801 | |
1d68af04 |
802 | This provides a consistent represenation for an attribute of a |
803 | Perl 5 class. Since there are so many ways to create and handle |
127d39a7 |
804 | attributes in Perl 5 OO, this attempts to provide as much of a |
1d68af04 |
805 | unified approach as possible, while giving the freedom and |
94b19069 |
806 | flexibility to subclass for specialization. |
807 | |
552e3d24 |
808 | See L<Class::MOP::Attribute> for more details. |
809 | |
94b19069 |
810 | =item The Method protocol |
811 | |
1d68af04 |
812 | This provides a means of manipulating and introspecting methods in |
813 | the Perl 5 object system. As with attributes, there are many ways to |
814 | approach this topic, so we try to keep it pretty basic, while still |
94b19069 |
815 | making it possible to extend the system in many ways. |
816 | |
552e3d24 |
817 | See L<Class::MOP::Method> for more details. |
94b19069 |
818 | |
127d39a7 |
819 | =item The Instance protocol |
820 | |
821 | This provides a layer of abstraction for creating object instances. |
822 | Since the other layers use this protocol, it is relatively easy to |
823 | change the type of your instances from the default HASH ref to other |
824 | types of references. Several examples are provided in the F<examples/> |
825 | directory included in this distribution. |
826 | |
827 | See L<Class::MOP::Instance> for more details. |
828 | |
94b19069 |
829 | =back |
830 | |
be7677c7 |
831 | =head1 FUNCTIONS |
832 | |
c1d5345a |
833 | =head2 Constants |
834 | |
835 | =over 4 |
836 | |
837 | =item I<IS_RUNNING_ON_5_10> |
838 | |
839 | We set this constant depending on what version perl we are on, this |
840 | allows us to take advantage of new 5.10 features and stay backwards |
841 | compat. |
842 | |
9efe16ca |
843 | =item I<HAVE_ISAREV> |
844 | |
845 | Whether or not C<mro> provides C<get_isarev>, a much faster way to get all the |
846 | subclasses of a certain class. |
847 | |
c1d5345a |
848 | =back |
849 | |
448b6e55 |
850 | =head2 Utility functions |
851 | |
bd07fbdb |
852 | Note that these are all called as B<functions, not methods>. |
081a927b |
853 | |
448b6e55 |
854 | =over 4 |
855 | |
856 | =item B<load_class ($class_name)> |
857 | |
1d68af04 |
858 | This will load a given C<$class_name> and if it does not have an |
448b6e55 |
859 | already initialized metaclass, then it will intialize one for it. |
127d39a7 |
860 | This function can be used in place of tricks like |
861 | C<eval "use $module"> or using C<require>. |
448b6e55 |
862 | |
863 | =item B<is_class_loaded ($class_name)> |
864 | |
1d68af04 |
865 | This will return a boolean depending on if the C<$class_name> has |
866 | been loaded. |
448b6e55 |
867 | |
1d68af04 |
868 | NOTE: This does a basic check of the symbol table to try and |
448b6e55 |
869 | determine as best it can if the C<$class_name> is loaded, it |
1d68af04 |
870 | is probably correct about 99% of the time. |
448b6e55 |
871 | |
b1f5f41d |
872 | =item B<check_package_cache_flag ($pkg)> |
e0e4674a |
873 | |
bd07fbdb |
874 | B<NOTE: DO NOT USE THIS FUNCTION, IT IS FOR INTERNAL USE ONLY!> |
875 | |
127d39a7 |
876 | This will return an integer that is managed by C<Class::MOP::Class> |
877 | to determine if a module's symbol table has been altered. |
878 | |
879 | In Perl 5.10 or greater, this flag is package specific. However in |
880 | versions prior to 5.10, this will use the C<PL_sub_generation> variable |
881 | which is not package specific. |
882 | |
e0e4674a |
883 | =item B<get_code_info ($code)> |
884 | |
bd07fbdb |
885 | B<NOTE: DO NOT USE THIS FUNCTION, IT IS FOR INTERNAL USE ONLY!> |
886 | |
127d39a7 |
887 | This function returns two values, the name of the package the C<$code> |
888 | is from and the name of the C<$code> itself. This is used by several |
889 | elements of the MOP to detemine where a given C<$code> reference is from. |
890 | |
4c105333 |
891 | =item B<subname ($name, $code)> |
892 | |
893 | B<NOTE: DO NOT USE THIS FUNCTION, IT IS FOR INTERNAL USE ONLY!> |
894 | |
895 | If possible, we will load the L<Sub::Name> module and this will function |
896 | as C<Sub::Name::subname> does, otherwise it will just return the C<$code> |
897 | argument. |
898 | |
6f49cf3f |
899 | =item B<in_global_destruction> |
900 | |
bd07fbdb |
901 | B<NOTE: DO NOT USE THIS FUNCTION, IT IS FOR INTERNAL USE ONLY!> |
902 | |
6f49cf3f |
903 | If L<Devel::GlobalDestruction> is available, this returns true under global |
904 | destruction. |
905 | |
906 | Otherwise it's a constant returning false. |
907 | |
448b6e55 |
908 | =back |
909 | |
910 | =head2 Metaclass cache functions |
911 | |
1d68af04 |
912 | Class::MOP holds a cache of metaclasses, the following are functions |
913 | (B<not methods>) which can be used to access that cache. It is not |
914 | recommended that you mess with this, bad things could happen. But if |
be7677c7 |
915 | you are brave and willing to risk it, go for it. |
916 | |
917 | =over 4 |
918 | |
919 | =item B<get_all_metaclasses> |
920 | |
1d68af04 |
921 | This will return an hash of all the metaclass instances that have |
922 | been cached by B<Class::MOP::Class> keyed by the package name. |
b9d9fc0b |
923 | |
be7677c7 |
924 | =item B<get_all_metaclass_instances> |
925 | |
1d68af04 |
926 | This will return an array of all the metaclass instances that have |
b9d9fc0b |
927 | been cached by B<Class::MOP::Class>. |
928 | |
be7677c7 |
929 | =item B<get_all_metaclass_names> |
930 | |
1d68af04 |
931 | This will return an array of all the metaclass names that have |
b9d9fc0b |
932 | been cached by B<Class::MOP::Class>. |
933 | |
be7677c7 |
934 | =item B<get_metaclass_by_name ($name)> |
935 | |
127d39a7 |
936 | This will return a cached B<Class::MOP::Class> instance of nothing |
937 | if no metaclass exist by that C<$name>. |
938 | |
be7677c7 |
939 | =item B<store_metaclass_by_name ($name, $meta)> |
940 | |
127d39a7 |
941 | This will store a metaclass in the cache at the supplied C<$key>. |
942 | |
be7677c7 |
943 | =item B<weaken_metaclass ($name)> |
944 | |
127d39a7 |
945 | In rare cases it is desireable to store a weakened reference in |
946 | the metaclass cache. This function will weaken the reference to |
947 | the metaclass stored in C<$name>. |
948 | |
be7677c7 |
949 | =item B<does_metaclass_exist ($name)> |
950 | |
127d39a7 |
951 | This will return true of there exists a metaclass stored in the |
952 | C<$name> key and return false otherwise. |
953 | |
be7677c7 |
954 | =item B<remove_metaclass_by_name ($name)> |
955 | |
127d39a7 |
956 | This will remove a the metaclass stored in the C<$name> key. |
957 | |
be7677c7 |
958 | =back |
959 | |
552e3d24 |
960 | =head1 SEE ALSO |
8b978dd5 |
961 | |
552e3d24 |
962 | =head2 Books |
8b978dd5 |
963 | |
1d68af04 |
964 | There are very few books out on Meta Object Protocols and Metaclasses |
965 | because it is such an esoteric topic. The following books are really |
966 | the only ones I have found. If you know of any more, B<I<please>> |
a2e85e6c |
967 | email me and let me know, I would love to hear about them. |
968 | |
8b978dd5 |
969 | =over 4 |
970 | |
552e3d24 |
971 | =item "The Art of the Meta Object Protocol" |
8b978dd5 |
972 | |
552e3d24 |
973 | =item "Advances in Object-Oriented Metalevel Architecture and Reflection" |
8b978dd5 |
974 | |
b51af7f9 |
975 | =item "Putting MetaClasses to Work" |
976 | |
a2e85e6c |
977 | =item "Smalltalk: The Language" |
978 | |
94b19069 |
979 | =back |
980 | |
550d56db |
981 | =head2 Papers |
982 | |
983 | =over 4 |
984 | |
985 | =item Uniform and safe metaclass composition |
986 | |
1d68af04 |
987 | An excellent paper by the people who brought us the original Traits paper. |
988 | This paper is on how Traits can be used to do safe metaclass composition, |
989 | and offers an excellent introduction section which delves into the topic of |
550d56db |
990 | metaclass compatibility. |
991 | |
992 | L<http://www.iam.unibe.ch/~scg/Archive/Papers/Duca05ySafeMetaclassTrait.pdf> |
993 | |
994 | =item Safe Metaclass Programming |
995 | |
1d68af04 |
996 | This paper seems to precede the above paper, and propose a mix-in based |
997 | approach as opposed to the Traits based approach. Both papers have similar |
998 | information on the metaclass compatibility problem space. |
550d56db |
999 | |
1000 | L<http://citeseer.ist.psu.edu/37617.html> |
1001 | |
1002 | =back |
1003 | |
552e3d24 |
1004 | =head2 Prior Art |
8b978dd5 |
1005 | |
1006 | =over 4 |
1007 | |
7184ca14 |
1008 | =item The Perl 6 MetaModel work in the Pugs project |
8b978dd5 |
1009 | |
1010 | =over 4 |
1011 | |
552e3d24 |
1012 | =item L<http://svn.openfoundry.org/pugs/perl5/Perl6-MetaModel> |
8b978dd5 |
1013 | |
552e3d24 |
1014 | =item L<http://svn.openfoundry.org/pugs/perl5/Perl6-ObjectSpace> |
8b978dd5 |
1015 | |
1016 | =back |
1017 | |
94b19069 |
1018 | =back |
1019 | |
1d68af04 |
1020 | =head2 Articles |
f8dfcfb7 |
1021 | |
1022 | =over 4 |
1023 | |
1d68af04 |
1024 | =item CPAN Module Review of Class::MOP |
f8dfcfb7 |
1025 | |
1026 | L<http://www.oreillynet.com/onlamp/blog/2006/06/cpan_module_review_classmop.html> |
1027 | |
1028 | =back |
1029 | |
a2e85e6c |
1030 | =head1 SIMILAR MODULES |
1031 | |
1d68af04 |
1032 | As I have said above, this module is a class-builder-builder, so it is |
1033 | not the same thing as modules like L<Class::Accessor> and |
1034 | L<Class::MethodMaker>. That being said there are very few modules on CPAN |
1035 | with similar goals to this module. The one I have found which is most |
1036 | like this module is L<Class::Meta>, although it's philosophy and the MOP it |
1037 | creates are very different from this modules. |
94b19069 |
1038 | |
a2e85e6c |
1039 | =head1 BUGS |
1040 | |
1d68af04 |
1041 | All complex software has bugs lurking in it, and this module is no |
a2e85e6c |
1042 | exception. If you find a bug please either email me, or add the bug |
1043 | to cpan-RT. |
1044 | |
1045 | =head1 ACKNOWLEDGEMENTS |
1046 | |
1047 | =over 4 |
1048 | |
b9d9fc0b |
1049 | =item Rob Kinyon |
a2e85e6c |
1050 | |
1d68af04 |
1051 | Thanks to Rob for actually getting the development of this module kick-started. |
a2e85e6c |
1052 | |
1053 | =back |
1054 | |
1a09d9cc |
1055 | =head1 AUTHORS |
94b19069 |
1056 | |
a2e85e6c |
1057 | Stevan Little E<lt>stevan@iinteractive.comE<gt> |
552e3d24 |
1058 | |
9c8cda90 |
1059 | B<with contributions from:> |
1060 | |
1061 | Brandon (blblack) Black |
1062 | |
4f116037 |
1063 | Florian (rafl) Ragwitz |
1064 | |
9c8cda90 |
1065 | Guillermo (groditi) Roditi |
1066 | |
9195ddff |
1067 | Matt (mst) Trout |
1068 | |
9c8cda90 |
1069 | Rob (robkinyon) Kinyon |
1070 | |
1071 | Yuval (nothingmuch) Kogman |
1a09d9cc |
1072 | |
f430cfa4 |
1073 | Scott (konobi) McWhirter |
1074 | |
94b19069 |
1075 | =head1 COPYRIGHT AND LICENSE |
1076 | |
69e3ab0a |
1077 | Copyright 2006-2008 by Infinity Interactive, Inc. |
94b19069 |
1078 | |
1079 | L<http://www.iinteractive.com> |
1080 | |
1081 | This library is free software; you can redistribute it and/or modify |
1d68af04 |
1082 | it under the same terms as Perl itself. |
94b19069 |
1083 | |
1084 | =cut |