Commit | Line | Data |
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1 | |
2 | package Moose::Object; |
3 | |
4 | use strict; |
5 | use warnings; |
648e79ae |
6 | |
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7 | use Devel::GlobalDestruction qw(in_global_destruction); |
61c4a4cd |
8 | use MRO::Compat; |
9 | use Scalar::Util; |
2eaf25da |
10 | |
9922fa6f |
11 | use if ( not our $__mx_is_compiled ), 'Moose::Meta::Class'; |
12 | use if ( not our $__mx_is_compiled ), metaclass => 'Moose::Meta::Class'; |
bc1e29b5 |
13 | |
eae0508f |
14 | our $VERSION = '0.81'; |
e606ae5f |
15 | $VERSION = eval $VERSION; |
d44714be |
16 | our $AUTHORITY = 'cpan:STEVAN'; |
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17 | |
18 | sub new { |
2c0cbef7 |
19 | my $class = shift; |
2eaf25da |
20 | |
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21 | my $params = $class->BUILDARGS(@_); |
2eaf25da |
22 | |
23 | # We want to support passing $self->new, but initialize |
24 | # takes only an unblessed class name |
25 | my $real_class = Scalar::Util::blessed($class) || $class; |
26 | my $self = Class::MOP::Class->initialize($real_class)->new_object($params); |
27 | |
e606ae5f |
28 | $self->BUILDALL($params); |
2eaf25da |
29 | |
e606ae5f |
30 | return $self; |
31 | } |
32 | |
33 | sub BUILDARGS { |
34 | my $class = shift; |
a62dcd43 |
35 | if ( scalar @_ == 1 ) { |
36 | unless ( defined $_[0] && ref $_[0] eq 'HASH' ) { |
46047bea |
37 | Class::MOP::class_of($class)->throw_error( |
a62dcd43 |
38 | "Single parameters to new() must be a HASH ref", |
39 | data => $_[0] ); |
86629f93 |
40 | } |
a62dcd43 |
41 | return { %{ $_[0] } }; |
42 | } |
8a157bab |
43 | else { |
e606ae5f |
44 | return {@_}; |
8a157bab |
45 | } |
fcd84ca9 |
46 | } |
47 | |
c0e30cf5 |
48 | sub BUILDALL { |
d03bd989 |
49 | # NOTE: we ask Perl if we even |
d44714be |
50 | # need to do this first, to avoid |
51 | # extra meta level calls |
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52 | return unless $_[0]->can('BUILD'); |
fb1e11d5 |
53 | my ($self, $params) = @_; |
505033d9 |
54 | foreach my $method (reverse Class::MOP::class_of($self)->find_all_methods_by_name('BUILD')) { |
b8f014e7 |
55 | $method->{code}->execute($self, $params); |
fb1e11d5 |
56 | } |
c0e30cf5 |
57 | } |
58 | |
59 | sub DEMOLISHALL { |
8955a780 |
60 | my $self = shift; |
d9359278 |
61 | my ($in_global_destruction) = @_; |
8955a780 |
62 | |
63 | # NOTE: we ask Perl if we even |
cb5c79c9 |
64 | # need to do this first, to avoid |
8955a780 |
65 | # extra meta level calls |
cb5c79c9 |
66 | return unless $self->can('DEMOLISH'); |
8955a780 |
67 | |
2bc1eab6 |
68 | my @isa; |
69 | if ( my $meta = Class::MOP::class_of($self ) ) { |
70 | @isa = $meta->linearized_isa; |
71 | } else { |
72 | # We cannot count on being able to retrieve a previously made |
73 | # metaclass, _or_ being able to make a new one during global |
74 | # destruction. However, we should still be able to use mro at |
75 | # that time (at least tests suggest so ;) |
76 | my $class_name = ref $self; |
77 | @isa = @{ mro::get_linear_isa($class_name) } |
78 | } |
79 | |
80 | foreach my $class (@isa) { |
c063fc8b |
81 | no strict 'refs'; |
82 | my $demolish = *{"${class}::DEMOLISH"}{CODE}; |
83 | $self->$demolish($in_global_destruction) |
84 | if defined $demolish; |
3a0c064a |
85 | } |
86 | } |
87 | |
d03bd989 |
88 | sub DESTROY { |
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89 | # if we have an exception here ... |
ca0e380d |
90 | if ($@) { |
91 | # localize the $@ ... |
92 | local $@; |
3a0c064a |
93 | # run DEMOLISHALL ourselves, ... |
ae736ff4 |
94 | $_[0]->DEMOLISHALL(in_global_destruction); |
3a0c064a |
95 | # and return ... |
96 | return; |
97 | } |
ca0e380d |
98 | # otherwise it is normal destruction |
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99 | $_[0]->DEMOLISHALL(in_global_destruction); |
c0e30cf5 |
100 | } |
101 | |
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102 | # support for UNIVERSAL::DOES ... |
103 | BEGIN { |
104 | my $does = UNIVERSAL->can("DOES") ? "SUPER::DOES" : "isa"; |
105 | eval 'sub DOES { |
106 | my ( $self, $class_or_role_name ) = @_; |
107 | return $self->'.$does.'($class_or_role_name) |
108 | || $self->does($class_or_role_name); |
109 | }'; |
110 | } |
111 | |
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112 | # new does() methods will be created |
50bc108b |
113 | # as appropiate see Moose::Meta::Role |
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114 | sub does { |
bdabd620 |
115 | my ($self, $role_name) = @_; |
66d33a5c |
116 | my $meta = Class::MOP::class_of($self); |
be05faea |
117 | (defined $role_name) |
118 | || $meta->throw_error("You much supply a role name to does()"); |
bdabd620 |
119 | foreach my $class ($meta->class_precedence_list) { |
587e457d |
120 | my $m = $meta->initialize($class); |
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121 | return 1 |
122 | if $m->can('does_role') && $m->does_role($role_name); |
bdabd620 |
123 | } |
d03bd989 |
124 | return 0; |
0677220d |
125 | } |
ef333f17 |
126 | |
d03bd989 |
127 | sub dump { |
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128 | my $self = shift; |
129 | require Data::Dumper; |
1a386a6c |
130 | local $Data::Dumper::Maxdepth = shift if @_; |
f742dfef |
131 | Data::Dumper::Dumper $self; |
132 | } |
133 | |
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134 | 1; |
135 | |
136 | __END__ |
137 | |
138 | =pod |
139 | |
140 | =head1 NAME |
141 | |
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142 | Moose::Object - The base object for Moose |
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143 | |
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144 | =head1 DESCRIPTION |
145 | |
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146 | This class is the default base class for all Moose-using classes. When |
147 | you C<use Moose> in this class, your class will inherit from this |
148 | class. |
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149 | |
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150 | It provides a default constructor and destructor, which run the |
151 | C<BUILDALL> and C<DEMOLISHALL> methods respectively. |
152 | |
153 | You don't actually I<need> to inherit from this in order to use Moose, |
154 | but it makes it easier to take advantage of all of Moose's features. |
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155 | |
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156 | =head1 METHODS |
157 | |
158 | =over 4 |
159 | |
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160 | =item B<< Moose::Object->new(%params) >> |
161 | |
162 | This method calls C<< $class->BUILDARGS(@_) >>, and then creates a new |
163 | instance of the appropriate class. Once the instance is created, it |
164 | calls C<< $instance->BUILDALL($params) >>. |
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165 | |
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166 | =item B<< Moose::Object->BUILDARGS(%params) >> |
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167 | |
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168 | The default implementation of this method accepts a hash or hash |
169 | reference of named parameters. If it receives a single argument that |
170 | I<isn't> a hash reference it throws an error. |
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171 | |
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172 | You can override this method in your class to handle other types of |
173 | options passed to the constructor. |
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174 | |
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175 | This method should always return a hash reference of named options. |
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176 | |
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177 | =item B<< $object->BUILDALL($params) >> |
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178 | |
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179 | This method will call every C<BUILD> method in the inheritance |
180 | hierarchy, starting with the most distant parent class and ending with |
181 | the object's class. |
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182 | |
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183 | The C<BUILD> method will be passed the hash reference returned by |
184 | C<BUILDARGS>. |
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185 | |
080e3614 |
186 | =item B<< $object->DEMOLISHALL >> |
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187 | |
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188 | This will call every C<DEMOLISH> method in the inheritance hierarchy, |
189 | starting with the object's class and ending with the most distant |
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190 | parent. C<DEMOLISHALL> and C<DEMOLISH> will receive a boolean |
191 | indicating whether or not we are currently in global destruction. |
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192 | |
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193 | =item B<< $object->does($role_name) >> |
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194 | |
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195 | This returns true if the object does the given role. |
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196 | |
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197 | =item B<DOES ($class_or_role_name)> |
198 | |
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199 | This is a a Moose role-aware implementation of L<UNIVERSAL/DOES>. |
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200 | |
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201 | This is effectively the same as writing: |
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202 | |
080e3614 |
203 | $object->does($name) || $object->isa($name) |
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204 | |
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205 | This method will work with Perl 5.8, which did not implement |
206 | C<UNIVERSAL::DOES>. |
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207 | |
080e3614 |
208 | =item B<< $object->dump($maxdepth) >> |
f742dfef |
209 | |
080e3614 |
210 | This is a handy utility for C<Data::Dumper>ing an object. By default, |
211 | the maximum depth is 1, to avoid making a mess. |
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212 | |
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213 | =back |
214 | |
215 | =head1 BUGS |
216 | |
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217 | All complex software has bugs lurking in it, and this module is no |
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218 | exception. If you find a bug please either email me, or add the bug |
219 | to cpan-RT. |
220 | |
fcd84ca9 |
221 | =head1 AUTHOR |
222 | |
223 | Stevan Little E<lt>stevan@iinteractive.comE<gt> |
224 | |
225 | =head1 COPYRIGHT AND LICENSE |
226 | |
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227 | Copyright 2006-2009 by Infinity Interactive, Inc. |
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228 | |
229 | L<http://www.iinteractive.com> |
230 | |
231 | This library is free software; you can redistribute it and/or modify |
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232 | it under the same terms as Perl itself. |
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233 | |
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234 | =cut |