Commit | Line | Data |
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1 | |
2 | package Moose; |
3 | |
4 | use strict; |
5 | use warnings; |
6 | |
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7 | our $VERSION = '0.02'; |
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8 | |
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9 | use Scalar::Util 'blessed', 'reftype'; |
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10 | use Carp 'confess'; |
bc1e29b5 |
11 | use Sub::Name 'subname'; |
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12 | |
7f18097c |
13 | use UNIVERSAL::require; |
14 | |
ef1d5f4b |
15 | use Class::MOP; |
16 | |
c0e30cf5 |
17 | use Moose::Meta::Class; |
18 | use Moose::Meta::Attribute; |
7415b2cb |
19 | use Moose::Meta::TypeConstraint; |
7c13858b |
20 | use Moose::Meta::TypeCoercion; |
c0e30cf5 |
21 | |
fcd84ca9 |
22 | use Moose::Object; |
7415b2cb |
23 | use Moose::Util::TypeConstraints; |
a15dff8d |
24 | |
fcd84ca9 |
25 | sub import { |
26 | shift; |
27 | my $pkg = caller(); |
28 | |
fc5609d2 |
29 | # we should never export to main |
30 | return if $pkg eq 'main'; |
31 | |
a15dff8d |
32 | Moose::Util::TypeConstraints->import($pkg); |
182134e8 |
33 | |
34 | # make a subtype for each Moose class |
7415b2cb |
35 | subtype $pkg |
36 | => as Object |
37 | => where { $_->isa($pkg) }; |
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38 | |
fcd84ca9 |
39 | my $meta; |
40 | if ($pkg->can('meta')) { |
41 | $meta = $pkg->meta(); |
42 | (blessed($meta) && $meta->isa('Class::MOP::Class')) |
43 | || confess "Whoops, not møøsey enough"; |
44 | } |
45 | else { |
c0e30cf5 |
46 | $meta = Moose::Meta::Class->initialize($pkg => ( |
47 | ':attribute_metaclass' => 'Moose::Meta::Attribute' |
e522431d |
48 | )); |
49 | $meta->add_method('meta' => sub { |
50 | # re-initialize so it inherits properly |
51 | Moose::Meta::Class->initialize($pkg => ( |
52 | ':attribute_metaclass' => 'Moose::Meta::Attribute' |
53 | )); |
54 | }) |
fcd84ca9 |
55 | } |
ad1ac1bd |
56 | |
bc1e29b5 |
57 | # NOTE: |
58 | # &alias_method will install the method, but it |
59 | # will not name it with |
60 | |
61 | # handle superclasses |
7f18097c |
62 | $meta->alias_method('extends' => subname 'Moose::extends' => sub { |
63 | $_->require for @_; |
64 | $meta->superclasses(@_) |
5e030bec |
65 | }); |
505c6fac |
66 | |
c0e30cf5 |
67 | # handle attributes |
29db16a9 |
68 | $meta->alias_method('has' => subname 'Moose::has' => sub { |
69 | my ($name, %options) = @_; |
70 | if (exists $options{is}) { |
cc65ead0 |
71 | if ($options{is} eq 'ro') { |
72 | $options{reader} = $name; |
73 | } |
74 | elsif ($options{is} eq 'rw') { |
75 | $options{accessor} = $name; |
76 | } |
29db16a9 |
77 | } |
cc65ead0 |
78 | if (exists $options{isa}) { |
e90c03d0 |
79 | # allow for anon-subtypes here ... |
66811d63 |
80 | if (blessed($options{isa}) && $options{isa}->isa('Moose::Meta::TypeConstraint')) { |
81 | $options{type_constraint} = $options{isa}; |
cc65ead0 |
82 | } |
83 | else { |
e90c03d0 |
84 | # otherwise assume it is a constraint |
7c13858b |
85 | my $constraint = find_type_constraint($options{isa}); |
e90c03d0 |
86 | # if the constraing it not found .... |
87 | unless (defined $constraint) { |
88 | # assume it is a foreign class, and make |
89 | # an anon constraint for it |
66811d63 |
90 | $constraint = subtype Object => where { $_->isa($options{isa}) }; |
7415b2cb |
91 | } |
e90c03d0 |
92 | $options{type_constraint} = $constraint; |
cc65ead0 |
93 | } |
29db16a9 |
94 | } |
95 | $meta->add_attribute($name, %options) |
96 | }); |
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97 | |
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98 | # handle method modifers |
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99 | $meta->alias_method('before' => subname 'Moose::before' => sub { |
e5ebe4ce |
100 | my $code = pop @_; |
101 | $meta->add_before_method_modifier($_, $code) for @_; |
102 | }); |
bc1e29b5 |
103 | $meta->alias_method('after' => subname 'Moose::after' => sub { |
e5ebe4ce |
104 | my $code = pop @_; |
fc5609d2 |
105 | $meta->add_after_method_modifier($_, $code) for @_; |
e5ebe4ce |
106 | }); |
bc1e29b5 |
107 | $meta->alias_method('around' => subname 'Moose::around' => sub { |
c0e30cf5 |
108 | my $code = pop @_; |
fc5609d2 |
109 | $meta->add_around_method_modifier($_, $code) for @_; |
c0e30cf5 |
110 | }); |
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111 | |
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112 | # make sure they inherit from Moose::Object |
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113 | $meta->superclasses('Moose::Object') |
114 | unless $meta->superclasses(); |
ad1ac1bd |
115 | |
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116 | # we recommend using these things |
117 | # so export them for them |
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118 | $meta->alias_method('confess' => \&Carp::confess); |
119 | $meta->alias_method('blessed' => \&Scalar::Util::blessed); |
fcd84ca9 |
120 | } |
121 | |
122 | 1; |
123 | |
124 | __END__ |
125 | |
126 | =pod |
127 | |
128 | =head1 NAME |
129 | |
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130 | Moose - Moose, it's the new Camel |
fcd84ca9 |
131 | |
132 | =head1 SYNOPSIS |
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133 | |
134 | package Point; |
135 | use Moose; |
136 | |
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137 | has 'x' => (isa => 'Int', is => 'rw'); |
138 | has 'y' => (isa => 'Int', is => 'rw'); |
e522431d |
139 | |
140 | sub clear { |
141 | my $self = shift; |
142 | $self->x(0); |
143 | $self->y(0); |
144 | } |
145 | |
146 | package Point3D; |
147 | use Moose; |
148 | |
149 | extends 'Point'; |
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150 | |
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151 | has 'z' => (isa => 'Int'); |
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152 | |
153 | after 'clear' => sub { |
154 | my $self = shift; |
155 | $self->{z} = 0; |
156 | }; |
157 | |
158 | =head1 CAVEAT |
159 | |
160 | This is a B<very> early release of this module, it still needs |
161 | some fine tuning and B<lots> more documentation. I am adopting |
162 | the I<release early and release often> approach with this module, |
163 | so keep an eye on your favorite CPAN mirror! |
164 | |
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165 | =head1 DESCRIPTION |
166 | |
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167 | Moose is an extension of the Perl 5 object system. |
168 | |
169 | =head2 Another object system!?!? |
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170 | |
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171 | Yes, I know there has been an explosion recently of new ways to |
172 | build object's in Perl 5, most of them based on inside-out objects, |
173 | and other such things. Moose is different because it is not a new |
174 | object system for Perl 5, but instead an extension of the existing |
175 | object system. |
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176 | |
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177 | Moose is built on top of L<Class::MOP>, which is a metaclass system |
178 | for Perl 5. This means that Moose not only makes building normal |
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179 | Perl 5 objects better, but it also provides the power of metaclass |
180 | programming. |
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181 | |
182 | =head2 What does Moose stand for?? |
183 | |
184 | Moose doesn't stand for one thing in particular, however, if you |
185 | want, here are a few of my favorites, feel free to contribute |
186 | more :) |
187 | |
188 | =over 4 |
189 | |
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190 | =item Make Other Object Systems Envious |
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191 | |
192 | =item Makes Object Orientation So Easy |
193 | |
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194 | =item Makes Object Orientation Spiffy- Er (sorry ingy) |
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195 | |
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196 | =item Most Other Object Systems Emasculate |
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197 | |
198 | =item My Overcraft Overfilled (with) Some Eels |
199 | |
200 | =item Moose Often Ovulate Sorta Early |
201 | |
505c6fac |
202 | =item Many Overloaded Object Systems Exists |
203 | |
204 | =item Moose Offers Often Super Extensions |
205 | |
e522431d |
206 | =back |
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207 | |
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208 | =head1 ACKNOWLEDGEMENTS |
209 | |
210 | =over 4 |
211 | |
212 | =item I blame Sam Vilain for giving me my first hit of meta-model crack. |
213 | |
214 | =item I blame Audrey Tang for encouraging that meta-crack habit in #perl6. |
215 | |
216 | =item Without the love and encouragement of Yuval "nothingmuch" Kogman, |
217 | this module would not be possible (and it wouldn't have a name). |
218 | |
219 | =item The basis of the TypeContraints module was Rob Kinyon's idea |
220 | originally, I just ran with it. |
221 | |
d46a48f3 |
222 | =item Much love to mst & chansen and the whole #moose poose for all the |
223 | ideas/feature-requests/encouragement |
224 | |
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225 | =back |
226 | |
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227 | =head1 SEE ALSO |
228 | |
229 | =over 4 |
230 | |
231 | =item L<http://forum2.org/moose/> |
232 | |
233 | =back |
234 | |
fcd84ca9 |
235 | =head1 BUGS |
236 | |
237 | All complex software has bugs lurking in it, and this module is no |
238 | exception. If you find a bug please either email me, or add the bug |
239 | to cpan-RT. |
240 | |
fcd84ca9 |
241 | =head1 AUTHOR |
242 | |
243 | Stevan Little E<lt>stevan@iinteractive.comE<gt> |
244 | |
245 | =head1 COPYRIGHT AND LICENSE |
246 | |
247 | Copyright 2006 by Infinity Interactive, Inc. |
248 | |
249 | L<http://www.iinteractive.com> |
250 | |
251 | This library is free software; you can redistribute it and/or modify |
252 | it under the same terms as Perl itself. |
253 | |
254 | =cut |