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 Scalar::Util; |
ae736ff4 |
8 | use Devel::GlobalDestruction qw(in_global_destruction); |
2eaf25da |
9 | |
9922fa6f |
10 | use if ( not our $__mx_is_compiled ), 'Moose::Meta::Class'; |
11 | use if ( not our $__mx_is_compiled ), metaclass => 'Moose::Meta::Class'; |
bc1e29b5 |
12 | |
85f8617c |
13 | our $VERSION = '0.78'; |
e606ae5f |
14 | $VERSION = eval $VERSION; |
d44714be |
15 | our $AUTHORITY = 'cpan:STEVAN'; |
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16 | |
17 | sub new { |
2c0cbef7 |
18 | my $class = shift; |
2eaf25da |
19 | |
e606ae5f |
20 | my $params = $class->BUILDARGS(@_); |
2eaf25da |
21 | |
22 | # We want to support passing $self->new, but initialize |
23 | # takes only an unblessed class name |
24 | my $real_class = Scalar::Util::blessed($class) || $class; |
25 | my $self = Class::MOP::Class->initialize($real_class)->new_object($params); |
26 | |
e606ae5f |
27 | $self->BUILDALL($params); |
2eaf25da |
28 | |
e606ae5f |
29 | return $self; |
30 | } |
31 | |
32 | sub BUILDARGS { |
33 | my $class = shift; |
a62dcd43 |
34 | if ( scalar @_ == 1 ) { |
35 | unless ( defined $_[0] && ref $_[0] eq 'HASH' ) { |
46047bea |
36 | Class::MOP::class_of($class)->throw_error( |
a62dcd43 |
37 | "Single parameters to new() must be a HASH ref", |
38 | data => $_[0] ); |
86629f93 |
39 | } |
a62dcd43 |
40 | return { %{ $_[0] } }; |
41 | } |
8a157bab |
42 | else { |
e606ae5f |
43 | return {@_}; |
8a157bab |
44 | } |
fcd84ca9 |
45 | } |
46 | |
c0e30cf5 |
47 | sub BUILDALL { |
d03bd989 |
48 | # NOTE: we ask Perl if we even |
d44714be |
49 | # need to do this first, to avoid |
50 | # extra meta level calls |
d03bd989 |
51 | return unless $_[0]->can('BUILD'); |
fb1e11d5 |
52 | my ($self, $params) = @_; |
505033d9 |
53 | foreach my $method (reverse Class::MOP::class_of($self)->find_all_methods_by_name('BUILD')) { |
b8f014e7 |
54 | $method->{code}->execute($self, $params); |
fb1e11d5 |
55 | } |
c0e30cf5 |
56 | } |
57 | |
58 | sub DEMOLISHALL { |
8955a780 |
59 | my $self = shift; |
d9359278 |
60 | my ($in_global_destruction) = @_; |
8955a780 |
61 | |
62 | # NOTE: we ask Perl if we even |
cb5c79c9 |
63 | # need to do this first, to avoid |
8955a780 |
64 | # extra meta level calls |
cb5c79c9 |
65 | return unless $self->can('DEMOLISH'); |
8955a780 |
66 | |
67 | # This is a hack, because Moose::Meta::Class may not be the right |
68 | # metaclass, but class_of may return undef during global |
69 | # destruction, if the metaclass object has already been cleaned |
70 | # up. |
71 | my $meta = Class::MOP::class_of($self) |
72 | || Moose::Meta::Class->initialize( ref $self ); |
73 | |
c063fc8b |
74 | # can't just use find_all_methods_by_name here because during global |
75 | # destruction, the method meta-object may have already been |
76 | # destroyed |
77 | foreach my $class ( $meta->linearized_isa ) { |
78 | no strict 'refs'; |
79 | my $demolish = *{"${class}::DEMOLISH"}{CODE}; |
80 | $self->$demolish($in_global_destruction) |
81 | if defined $demolish; |
3a0c064a |
82 | } |
83 | } |
84 | |
d03bd989 |
85 | sub DESTROY { |
3a0c064a |
86 | # if we have an exception here ... |
ca0e380d |
87 | if ($@) { |
88 | # localize the $@ ... |
89 | local $@; |
3a0c064a |
90 | # run DEMOLISHALL ourselves, ... |
ae736ff4 |
91 | $_[0]->DEMOLISHALL(in_global_destruction); |
3a0c064a |
92 | # and return ... |
93 | return; |
94 | } |
ca0e380d |
95 | # otherwise it is normal destruction |
ae736ff4 |
96 | $_[0]->DEMOLISHALL(in_global_destruction); |
c0e30cf5 |
97 | } |
98 | |
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99 | # support for UNIVERSAL::DOES ... |
100 | BEGIN { |
101 | my $does = UNIVERSAL->can("DOES") ? "SUPER::DOES" : "isa"; |
102 | eval 'sub DOES { |
103 | my ( $self, $class_or_role_name ) = @_; |
104 | return $self->'.$does.'($class_or_role_name) |
105 | || $self->does($class_or_role_name); |
106 | }'; |
107 | } |
108 | |
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109 | # new does() methods will be created |
50bc108b |
110 | # as appropiate see Moose::Meta::Role |
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111 | sub does { |
bdabd620 |
112 | my ($self, $role_name) = @_; |
66d33a5c |
113 | my $meta = Class::MOP::class_of($self); |
be05faea |
114 | (defined $role_name) |
115 | || $meta->throw_error("You much supply a role name to does()"); |
bdabd620 |
116 | foreach my $class ($meta->class_precedence_list) { |
587e457d |
117 | my $m = $meta->initialize($class); |
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118 | return 1 |
119 | if $m->can('does_role') && $m->does_role($role_name); |
bdabd620 |
120 | } |
d03bd989 |
121 | return 0; |
0677220d |
122 | } |
ef333f17 |
123 | |
d03bd989 |
124 | sub dump { |
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125 | my $self = shift; |
126 | require Data::Dumper; |
1a386a6c |
127 | local $Data::Dumper::Maxdepth = shift if @_; |
f742dfef |
128 | Data::Dumper::Dumper $self; |
129 | } |
130 | |
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131 | 1; |
132 | |
133 | __END__ |
134 | |
135 | =pod |
136 | |
137 | =head1 NAME |
138 | |
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139 | Moose::Object - The base object for Moose |
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140 | |
fcd84ca9 |
141 | =head1 DESCRIPTION |
142 | |
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143 | This class is the default base class for all Moose-using classes. When |
144 | you C<use Moose> in this class, your class will inherit from this |
145 | class. |
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146 | |
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147 | It provides a default constructor and destructor, which run the |
148 | C<BUILDALL> and C<DEMOLISHALL> methods respectively. |
149 | |
150 | You don't actually I<need> to inherit from this in order to use Moose, |
151 | but it makes it easier to take advantage of all of Moose's features. |
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152 | |
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153 | =head1 METHODS |
154 | |
155 | =over 4 |
156 | |
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157 | =item B<< Moose::Object->new(%params) >> |
158 | |
159 | This method calls C<< $class->BUILDARGS(@_) >>, and then creates a new |
160 | instance of the appropriate class. Once the instance is created, it |
161 | calls C<< $instance->BUILDALL($params) >>. |
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162 | |
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163 | =item B<< Moose::Object->BUILDARGS(%params) >> |
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164 | |
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165 | The default implementation of this method accepts a hash or hash |
166 | reference of named parameters. If it receives a single argument that |
167 | I<isn't> a hash reference it throws an error. |
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168 | |
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169 | You can override this method in your class to handle other types of |
170 | options passed to the constructor. |
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171 | |
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172 | This method should always return a hash reference of named options. |
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173 | |
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174 | =item B<< $object->BUILDALL($params) >> |
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175 | |
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176 | This method will call every C<BUILD> method in the inheritance |
177 | hierarchy, starting with the most distant parent class and ending with |
178 | the object's class. |
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179 | |
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180 | The C<BUILD> method will be passed the hash reference returned by |
181 | C<BUILDARGS>. |
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182 | |
080e3614 |
183 | =item B<< $object->DEMOLISHALL >> |
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184 | |
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185 | This will call every C<DEMOLISH> method in the inheritance hierarchy, |
186 | starting with the object's class and ending with the most distant |
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187 | parent. C<DEMOLISHALL> and C<DEMOLISH> will receive a boolean |
188 | indicating whether or not we are currently in global destruction. |
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189 | |
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190 | =item B<< $object->does($role_name) >> |
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191 | |
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192 | This returns true if the object does the given role. |
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193 | |
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194 | =item B<DOES ($class_or_role_name)> |
195 | |
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196 | This is a a Moose role-aware implementation of L<UNIVERSAL/DOES>. |
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197 | |
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198 | This is effectively the same as writing: |
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199 | |
080e3614 |
200 | $object->does($name) || $object->isa($name) |
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201 | |
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202 | This method will work with Perl 5.8, which did not implement |
203 | C<UNIVERSAL::DOES>. |
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204 | |
080e3614 |
205 | =item B<< $object->dump($maxdepth) >> |
f742dfef |
206 | |
080e3614 |
207 | This is a handy utility for C<Data::Dumper>ing an object. By default, |
208 | the maximum depth is 1, to avoid making a mess. |
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209 | |
fcd84ca9 |
210 | =back |
211 | |
212 | =head1 BUGS |
213 | |
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214 | All complex software has bugs lurking in it, and this module is no |
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215 | exception. If you find a bug please either email me, or add the bug |
216 | to cpan-RT. |
217 | |
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218 | =head1 AUTHOR |
219 | |
220 | Stevan Little E<lt>stevan@iinteractive.comE<gt> |
221 | |
222 | =head1 COPYRIGHT AND LICENSE |
223 | |
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224 | Copyright 2006-2009 by Infinity Interactive, Inc. |
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225 | |
226 | L<http://www.iinteractive.com> |
227 | |
228 | This library is free software; you can redistribute it and/or modify |
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229 | it under the same terms as Perl itself. |
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230 | |
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231 | =cut |