Profile of /usr/local/lib/perl5/site_perl/5.10.1/darwin-2level/Moose/Meta/Attribute.pm

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NYTProf Performance Profile «block view•line view•sub view»
For 01.HTTP.t
Run on Tue May 4 15:25:55 2010
Reported on Tue May 4 15:26:14 2010

File | /usr/local/lib/perl5/site_perl/5.10.1/darwin-2level/Moose/Meta/Attribute.pm
Statements Executed | 380
Statement Execution Time | 5.30ms

Subroutines — ordered by exclusive time
Calls | P | F | Exclusive Time | Inclusive Time | Subroutine
--- | --- | --- | --- | --- | ---
1 | 1 | 1 | 5.56ms | 41.3ms | Moose::Meta::Attribute::::BEGIN@18 Moose::Meta::Attribute::BEGIN@18
1 | 1 | 1 | 1.55ms | 1.66ms | Moose::Meta::Attribute::::BEGIN@15 Moose::Meta::Attribute::BEGIN@15
1 | 1 | 1 | 1.50ms | 1.71ms | Moose::Meta::Attribute::::BEGIN@16 Moose::Meta::Attribute::BEGIN@16
1 | 1 | 1 | 1.14ms | 1.71ms | Moose::Meta::Attribute::::BEGIN@17 Moose::Meta::Attribute::BEGIN@17
5 | 2 | 2 | 636µs | 2.13ms | Moose::Meta::Attribute::::new Moose::Meta::Attribute::new
6 | 1 | 1 | 96µs | 4.80ms | Moose::Meta::Attribute::::_process_accessors Moose::Meta::Attribute::_process_accessors
6 | 2 | 1 | 73µs | 5.53ms | Moose::Meta::Attribute::::install_accessors Moose::Meta::Attribute::install_accessors
4 | 1 | 1 | 56µs | 1.28ms | Moose::Meta::Attribute::::interpolate_class_and_new Moose::Meta::Attribute::interpolate_class_and_new
5 | 1 | 1 | 40µs | 40µs | Moose::Meta::Attribute::::_process_options Moose::Meta::Attribute::_process_options
4 | 1 | 1 | 21µs | 21µs | Moose::Meta::Attribute::::interpolate_class Moose::Meta::Attribute::interpolate_class
4 | 1 | 1 | 20µs | 26µs | Moose::Meta::Attribute::::_check_associated_methods Moose::Meta::Attribute::_check_associated_methods
1 | 1 | 1 | 15µs | 18µs | Moose::Meta::Attribute::::BEGIN@4 Moose::Meta::Attribute::BEGIN@4
1 | 1 | 1 | 9µs | 4.98ms | Moose::Meta::Attribute::::BEGIN@20 Moose::Meta::Attribute::BEGIN@20
5 | 1 | 2 | 9µs | 9µs | Moose::Meta::Attribute::::CORE:sort Moose::Meta::Attribute::CORE:sort (opcode)
6 | 1 | 1 | 8µs | 8µs | Moose::Meta::Attribute::::accessor_metaclass Moose::Meta::Attribute::accessor_metaclass
1 | 1 | 1 | 7µs | 37µs | Moose::Meta::Attribute::::BEGIN@9 Moose::Meta::Attribute::BEGIN@9
1 | 1 | 1 | 7µs | 31µs | Moose::Meta::Attribute::::BEGIN@8 Moose::Meta::Attribute::BEGIN@8
1 | 1 | 1 | 7µs | 36µs | Moose::Meta::Attribute::::BEGIN@7 Moose::Meta::Attribute::BEGIN@7
1 | 1 | 1 | 7µs | 16µs | Moose::Meta::Attribute::::BEGIN@5 Moose::Meta::Attribute::BEGIN@5
1 | 1 | 1 | 4µs | 4µs | Moose::Meta::Attribute::::BEGIN@10 Moose::Meta::Attribute::BEGIN@10
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::Custom::Moose::::register_implementationMoose::Meta::Attribute::Custom::Moose::register_implementation
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::__ANON__[:293] Moose::Meta::Attribute::__ANON__[:293]
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::__ANON__[:35] Moose::Meta::Attribute::__ANON__[:35]
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::__ANON__[:450] Moose::Meta::Attribute::__ANON__[:450]
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::__ANON__[:631] Moose::Meta::Attribute::__ANON__[:631]
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::_call_builder Moose::Meta::Attribute::_call_builder
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::_canonicalize_handles Moose::Meta::Attribute::_canonicalize_handles
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::_coerce_and_verify Moose::Meta::Attribute::_coerce_and_verify
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::_find_delegate_metaclass Moose::Meta::Attribute::_find_delegate_metaclass
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::_get_delegate_method_list Moose::Meta::Attribute::_get_delegate_method_list
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::_make_delegation_method Moose::Meta::Attribute::_make_delegation_method
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::_set_initial_slot_value Moose::Meta::Attribute::_set_initial_slot_value
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::_weaken_value Moose::Meta::Attribute::_weaken_value
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::clone Moose::Meta::Attribute::clone
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::clone_and_inherit_options Moose::Meta::Attribute::clone_and_inherit_options
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::delegation_metaclass Moose::Meta::Attribute::delegation_metaclass
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::does Moose::Meta::Attribute::does
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::get_value Moose::Meta::Attribute::get_value
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::initialize_instance_slot Moose::Meta::Attribute::initialize_instance_slot
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::install_delegation Moose::Meta::Attribute::install_delegation
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::legal_options_for_inheritance Moose::Meta::Attribute::legal_options_for_inheritance
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::remove_accessors Moose::Meta::Attribute::remove_accessors
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::remove_delegation Moose::Meta::Attribute::remove_delegation
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::set_value Moose::Meta::Attribute::set_value
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::throw_error Moose::Meta::Attribute::throw_error
0 | 0 | 0 | 0s | 0s | Moose::Meta::Attribute::::verify_against_type_constraint Moose::Meta::Attribute::verify_against_type_constraint

Call graph for these subroutines as a Graphviz dot language file.

Line | State ments | Time on line | Calls | Time in subs | Code
--- | --- | --- | --- | --- | ---
1 |  |  |  |  |
2 |  |  |  |  | package Moose::Meta::Attribute;
3 |  |  |  |  |
4 | 3 | 21µs | 2 | 20µs | # spent 18µs (15+3) within Moose::Meta::Attribute::BEGIN@4 which was called # once (15µs+3µs) by Moose::Meta::TypeCoercion::BEGIN@8 at line 4 use strict; # spent 18µs making 1 call to Moose::Meta::Attribute::BEGIN@4 # spent 3µs making 1 call to strict::import
5 | 3 | 23µs | 2 | 24µs | # spent 16µs (7+9) within Moose::Meta::Attribute::BEGIN@5 which was called # once (7µs+9µs) by Moose::Meta::TypeCoercion::BEGIN@8 at line 5 use warnings; # spent 16µs making 1 call to Moose::Meta::Attribute::BEGIN@5 # spent 8µs making 1 call to warnings::import
6 |  |  |  |  |
7 | 3 | 23µs | 2 | 64µs | # spent 36µs (7+28) within Moose::Meta::Attribute::BEGIN@7 which was called # once (7µs+28µs) by Moose::Meta::TypeCoercion::BEGIN@8 at line 7 use Scalar::Util 'blessed', 'weaken'; # spent 36µs making 1 call to Moose::Meta::Attribute::BEGIN@7 # spent 28µs making 1 call to Exporter::import
8 | 3 | 22µs | 2 | 55µs | # spent 31µs (7+24) within Moose::Meta::Attribute::BEGIN@8 which was called # once (7µs+24µs) by Moose::Meta::TypeCoercion::BEGIN@8 at line 8 use List::MoreUtils 'any'; # spent 31µs making 1 call to Moose::Meta::Attribute::BEGIN@8 # spent 24µs making 1 call to Exporter::import
9 | 3 | 20µs | 2 | 66µs | # spent 37µs (7+30) within Moose::Meta::Attribute::BEGIN@9 which was called # once (7µs+30µs) by Moose::Meta::TypeCoercion::BEGIN@8 at line 9 use Try::Tiny; # spent 37µs making 1 call to Moose::Meta::Attribute::BEGIN@9 # spent 30µs making 1 call to Exporter::import
10 | 3 | 48µs | 1 | 4µs | # spent 4µs within Moose::Meta::Attribute::BEGIN@10 which was called # once (4µs+0s) by Moose::Meta::TypeCoercion::BEGIN@8 at line 10 use overload (); # spent 4µs making 1 call to Moose::Meta::Attribute::BEGIN@10
11 |  |  |  |  |
12 | 1 | 800ns |  |  | our $VERSION = '0.98';
13 | 1 | 400ns |  |  | our $AUTHORITY = 'cpan:STEVAN';
14 |  |  |  |  |
15 | 3 | 116µs | 1 | 1.66ms | # spent 1.66ms (1.55+112µs) within Moose::Meta::Attribute::BEGIN@15 which was called # once (1.55ms+112µs) by Moose::Meta::TypeCoercion::BEGIN@8 at line 15 use Moose::Meta::Method::Accessor; # spent 1.66ms making 1 call to Moose::Meta::Attribute::BEGIN@15
16 | 3 | 756µs | 1 | 1.71ms | # spent 1.71ms (1.50+215µs) within Moose::Meta::Attribute::BEGIN@16 which was called # once (1.50ms+215µs) by Moose::Meta::TypeCoercion::BEGIN@8 at line 16 use Moose::Meta::Method::Delegation; # spent 1.71ms making 1 call to Moose::Meta::Attribute::BEGIN@16
17 | 3 | 91µs | 1 | 1.71ms | # spent 1.71ms (1.14+566µs) within Moose::Meta::Attribute::BEGIN@17 which was called # once (1.14ms+566µs) by Moose::Meta::TypeCoercion::BEGIN@8 at line 17 use Moose::Util (); # spent 1.71ms making 1 call to Moose::Meta::Attribute::BEGIN@17
18 | 3 | 681µs | 1 | 41.3ms | # spent 41.3ms (5.56+35.8) within Moose::Meta::Attribute::BEGIN@18 which was called # once (5.56ms+35.8ms) by Moose::Meta::TypeCoercion::BEGIN@8 at line 18 use Moose::Util::TypeConstraints (); # spent 41.3ms making 1 call to Moose::Meta::Attribute::BEGIN@18
19 |  |  |  |  |
20 | 3 | 2.73ms | 2 | 9.95ms | # spent 4.98ms (9µs+4.97) within Moose::Meta::Attribute::BEGIN@20 which was called # once (9µs+4.97ms) by Moose::Meta::TypeCoercion::BEGIN@8 at line 20 use base 'Class::MOP::Attribute', 'Moose::Meta::Mixin::AttributeCore'; # spent 4.98ms making 1 call to Moose::Meta::Attribute::BEGIN@20 # spent 4.97ms making 1 call to base::import
21 |  |  |  |  |
22 | 1 | 8µs | 2 | 528µs | __PACKAGE__->meta->add_attribute('traits' => ( # spent 471µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute # spent 58µs making 1 call to Class::MOP::Object::meta
23 |  |  |  |  | reader => 'applied_traits',
24 |  |  |  |  | predicate => 'has_applied_traits',
25 |  |  |  |  | ));
26 |  |  |  |  |
27 |  |  |  |  | # we need to have a ->does method in here to
28 |  |  |  |  | # more easily support traits, and the introspection
29 |  |  |  |  | # of those traits. We extend the does check to look
30 |  |  |  |  | # for metatrait aliases.
31 |  |  |  |  | sub does {
32 |  |  |  |  | my ($self, $role_name) = @_;
33 |  |  |  |  | my $name = try {
34 |  |  |  |  | Moose::Util::resolve_metatrait_alias(Attribute => $role_name)
35 |  |  |  |  | };
36 |  |  |  |  | return 0 if !defined($name); # failed to load class
37 |  |  |  |  | return $self->Moose::Object::does($name);
38 |  |  |  |  | }
39 |  |  |  |  |
40 |  |  |  |  | sub throw_error {
41 |  |  |  |  | my $self = shift;
42 |  |  |  |  | my $class = ( ref $self && $self->associated_class ) || "Moose::Meta::Class";
43 |  |  |  |  | unshift @_, "message" if @_ % 2 == 1;
44 |  |  |  |  | unshift @_, attr => $self if ref $self;
45 |  |  |  |  | unshift @_, $class;
46 |  |  |  |  | my $handler = $class->can("throw_error"); # to avoid incrementing depth by 1
47 |  |  |  |  | goto $handler;
48 |  |  |  |  | }
49 |  |  |  |  |
50 |  |  |  |  | # spent 2.13ms (636µs+1.49) within Moose::Meta::Attribute::new which was called 5 times, avg 426µs/call: # 4 times (514µs+689µs) by Moose::Meta::Attribute::interpolate_class_and_new at line 78, avg 301µs/call # once (122µs+805µs) by Moose::BEGIN@20 at line 20 of Moose/Meta/TypeCoercion.pm sub new {
51 | 35 | 340µs |  |  | my ($class, $name, %options) = @_;
52 |  |  |  |  | $class->_process_options($name, \%options) unless $options{__hack_no_process_options}; # used from clone()... YECHKKK FIXME ICKY YUCK GROSS # spent 40µs making 5 calls to Moose::Meta::Attribute::_process_options, avg 8µs/call
53 |  |  |  |  |
54 |  |  |  |  | delete $options{__hack_no_process_options};
55 |  |  |  |  |
56 |  |  |  |  | my %attrs =
57 |  |  |  |  | ( map { $_ => 1 }
58 |  |  |  |  | grep { defined } # spent 174µs making 140 calls to Class::MOP::Mixin::AttributeCore::init_arg, avg 1µs/call
59 | 140 | 119µs | 10 | 409µs | map { $_->init_arg() } # spent 239µs making 4 calls to Class::MOP::Class::Immutable::Class::MOP::Class::get_all_attributes, avg 60µs/call # spent 92µs making 1 call to Class::MOP::Class::get_all_attributes # spent 78µs making 5 calls to Class::MOP::Object::meta, avg 16µs/call
60 |  |  |  |  | $class->meta()->get_all_attributes()
61 |  |  |  |  | );
62 |  |  |  |  |
63 |  |  |  |  | my @bad = sort grep { ! $attrs{$_} } keys %options; # spent 9µs making 5 calls to Moose::Meta::Attribute::CORE:sort, avg 2µs/call
64 |  |  |  |  |
65 |  |  |  |  | if (@bad)
66 |  |  |  |  | {
67 |  |  |  |  | Carp::cluck "Found unknown argument(s) passed to '$name' attribute constructor in '$class': @bad";
68 |  |  |  |  | }
69 |  |  |  |  |
70 |  |  |  |  | return $class->SUPER::new($name, %options); # spent 863µs making 5 calls to Class::MOP::Attribute::new, avg 173µs/call
71 |  |  |  |  | }
72 |  |  |  |  |
73 |  |  |  |  | # spent 1.28ms (56µs+1.22) within Moose::Meta::Attribute::interpolate_class_and_new which was called 4 times, avg 320µs/call: # 4 times (56µs+1.22ms) by Moose::Meta::Class::_process_new_attribute at line 607 of Moose/Meta/Class.pm, avg 320µs/call sub interpolate_class_and_new {
74 | 12 | 41µs |  |  | my ($class, $name, %args) = @_;
75 |  |  |  |  |
76 |  |  |  |  | my ( $new_class, @traits ) = $class->interpolate_class(\%args); # spent 21µs making 4 calls to Moose::Meta::Attribute::interpolate_class, avg 5µs/call
77 |  |  |  |  |
78 |  |  |  |  | $new_class->new($name, %args, ( scalar(@traits) ? ( traits => \@traits ) : () ) ); # spent 1.20ms making 4 calls to Moose::Meta::Attribute::new, avg 301µs/call
79 |  |  |  |  | }
80 |  |  |  |  |
81 |  |  |  |  | # spent 21µs within Moose::Meta::Attribute::interpolate_class which was called 4 times, avg 5µs/call: # 4 times (21µs+0s) by Moose::Meta::Attribute::interpolate_class_and_new at line 76, avg 5µs/call sub interpolate_class {
82 | 24 | 29µs |  |  | my ($class, $options) = @_;
83 |  |  |  |  |
84 |  |  |  |  | $class = ref($class) || $class;
85 |  |  |  |  |
86 |  |  |  |  | if ( my $metaclass_name = delete $options->{metaclass} ) {
87 |  |  |  |  | my $new_class = Moose::Util::resolve_metaclass_alias( Attribute => $metaclass_name );
88 |  |  |  |  |
89 |  |  |  |  | if ( $class ne $new_class ) {
90 |  |  |  |  | if ( $new_class->can("interpolate_class") ) {
91 |  |  |  |  | return $new_class->interpolate_class($options);
92 |  |  |  |  | } else {
93 |  |  |  |  | $class = $new_class;
94 |  |  |  |  | }
95 |  |  |  |  | }
96 |  |  |  |  | }
97 |  |  |  |  |
98 |  |  |  |  | my @traits;
99 |  |  |  |  |
100 |  |  |  |  | if (my $traits = $options->{traits}) {
101 |  |  |  |  | my $i = 0;
102 |  |  |  |  | while ($i < @$traits) {
103 |  |  |  |  | my $trait = $traits->[$i++];
104 |  |  |  |  | next if ref($trait); # options to a trait we discarded
105 |  |  |  |  |
106 |  |  |  |  | $trait = Moose::Util::resolve_metatrait_alias(Attribute => $trait)
107 |  |  |  |  | || $trait;
108 |  |  |  |  |
109 |  |  |  |  | next if $class->does($trait);
110 |  |  |  |  |
111 |  |  |  |  | push @traits, $trait;
112 |  |  |  |  |
113 |  |  |  |  | # are there options?
114 |  |  |  |  | push @traits, $traits->[$i++]
115 |  |  |  |  | if $traits->[$i] && ref($traits->[$i]);
116 |  |  |  |  | }
117 |  |  |  |  |
118 |  |  |  |  | if (@traits) {
119 |  |  |  |  | my $anon_class = Moose::Meta::Class->create_anon_class(
120 |  |  |  |  | superclasses => [ $class ],
121 |  |  |  |  | roles => [ @traits ],
122 |  |  |  |  | cache => 1,
123 |  |  |  |  | );
124 |  |  |  |  |
125 |  |  |  |  | $class = $anon_class->name;
126 |  |  |  |  | }
127 |  |  |  |  | }
128 |  |  |  |  |
129 |  |  |  |  | return ( wantarray ? ( $class, @traits ) : $class );
130 |  |  |  |  | }
131 |  |  |  |  |
132 |  |  |  |  | # ...
133 |  |  |  |  |
134 | 1 | 2µs |  |  | my @legal_options_for_inheritance = qw(
135 |  |  |  |  | default coerce required
136 |  |  |  |  | documentation lazy handles
137 |  |  |  |  | builder type_constraint
138 |  |  |  |  | definition_context
139 |  |  |  |  | lazy_build weak_ref
140 |  |  |  |  | );
141 |  |  |  |  |
142 |  |  |  |  | sub legal_options_for_inheritance { @legal_options_for_inheritance }
143 |  |  |  |  |
144 |  |  |  |  | # NOTE/TODO
145 |  |  |  |  | # This method *must* be able to handle
146 |  |  |  |  | # Class::MOP::Attribute instances as
147 |  |  |  |  | # well. Yes, I know that is wrong, but
148 |  |  |  |  | # apparently we didn't realize it was
149 |  |  |  |  | # doing that and now we have some code
150 |  |  |  |  | # which is dependent on it. The real
151 |  |  |  |  | # solution of course is to push this
152 |  |  |  |  | # feature back up into Class::MOP::Attribute
153 |  |  |  |  | # but I not right now, I am too lazy.
154 |  |  |  |  | # However if you are reading this and
155 |  |  |  |  | # looking for something to do,.. please
156 |  |  |  |  | # be my guest.
157 |  |  |  |  | # - stevan
158 |  |  |  |  | sub clone_and_inherit_options {
159 |  |  |  |  | my ($self, %options) = @_;
160 |  |  |  |  |
161 |  |  |  |  | my %copy = %options;
162 |  |  |  |  |
163 |  |  |  |  | my %actual_options;
164 |  |  |  |  |
165 |  |  |  |  | # NOTE:
166 |  |  |  |  | # we may want to extends a Class::MOP::Attribute
167 |  |  |  |  | # in which case we need to be able to use the
168 |  |  |  |  | # core set of legal options that have always
169 |  |  |  |  | # been here. But we allows Moose::Meta::Attribute
170 |  |  |  |  | # instances to changes them.
171 |  |  |  |  | # - SL
172 |  |  |  |  | my @legal_options = $self->can('legal_options_for_inheritance')
173 |  |  |  |  | ? $self->legal_options_for_inheritance
174 |  |  |  |  | : @legal_options_for_inheritance;
175 |  |  |  |  |
176 |  |  |  |  | foreach my $legal_option (@legal_options) {
177 |  |  |  |  | if (exists $options{$legal_option}) {
178 |  |  |  |  | $actual_options{$legal_option} = $options{$legal_option};
179 |  |  |  |  | delete $options{$legal_option};
180 |  |  |  |  | }
181 |  |  |  |  | }
182 |  |  |  |  |
183 |  |  |  |  | if ($options{isa}) {
184 |  |  |  |  | my $type_constraint;
185 |  |  |  |  | if (blessed($options{isa}) && $options{isa}->isa('Moose::Meta::TypeConstraint')) {
186 |  |  |  |  | $type_constraint = $options{isa};
187 |  |  |  |  | }
188 |  |  |  |  | else {
189 |  |  |  |  | $type_constraint = Moose::Util::TypeConstraints::find_or_create_isa_type_constraint($options{isa});
190 |  |  |  |  | (defined $type_constraint)
191 |  |  |  |  | || $self->throw_error("Could not find the type constraint '" . $options{isa} . "'", data => $options{isa});
192 |  |  |  |  | }
193 |  |  |  |  |
194 |  |  |  |  | $actual_options{type_constraint} = $type_constraint;
195 |  |  |  |  | delete $options{isa};
196 |  |  |  |  | }
197 |  |  |  |  |
198 |  |  |  |  | if ($options{does}) {
199 |  |  |  |  | my $type_constraint;
200 |  |  |  |  | if (blessed($options{does}) && $options{does}->isa('Moose::Meta::TypeConstraint')) {
201 |  |  |  |  | $type_constraint = $options{does};
202 |  |  |  |  | }
203 |  |  |  |  | else {
204 |  |  |  |  | $type_constraint = Moose::Util::TypeConstraints::find_or_create_does_type_constraint($options{does});
205 |  |  |  |  | (defined $type_constraint)
206 |  |  |  |  | || $self->throw_error("Could not find the type constraint '" . $options{does} . "'", data => $options{does});
207 |  |  |  |  | }
208 |  |  |  |  |
209 |  |  |  |  | $actual_options{type_constraint} = $type_constraint;
210 |  |  |  |  | delete $options{does};
211 |  |  |  |  | }
212 |  |  |  |  |
213 |  |  |  |  | # NOTE:
214 |  |  |  |  | # this doesn't apply to Class::MOP::Attributes,
215 |  |  |  |  | # so we can ignore it for them.
216 |  |  |  |  | # - SL
217 |  |  |  |  | if ($self->can('interpolate_class')) {
218 |  |  |  |  | ( $actual_options{metaclass}, my @traits ) = $self->interpolate_class(\%options);
219 |  |  |  |  |
220 |  |  |  |  | my %seen;
221 |  |  |  |  | my @all_traits = grep { $seen{$_}++ } @{ $self->applied_traits || [] }, @traits;
222 |  |  |  |  | $actual_options{traits} = \@all_traits if @all_traits;
223 |  |  |  |  |
224 |  |  |  |  | delete @options{qw(metaclass traits)};
225 |  |  |  |  | }
226 |  |  |  |  |
227 |  |  |  |  | (scalar keys %options == 0)
228 |  |  |  |  | || $self->throw_error("Illegal inherited options => (" . (join ', ' => keys %options) . ")", data => \%options);
229 |  |  |  |  |
230 |  |  |  |  |
231 |  |  |  |  | $self->clone(%actual_options);
232 |  |  |  |  | }
233 |  |  |  |  |
234 |  |  |  |  | sub clone {
235 |  |  |  |  | my ( $self, %params ) = @_;
236 |  |  |  |  |
237 |  |  |  |  | my $class = delete $params{metaclass} || ref $self;
238 |  |  |  |  |
239 |  |  |  |  | my ( @init, @non_init );
240 |  |  |  |  |
241 |  |  |  |  | foreach my $attr ( grep { $_->has_value($self) } Class::MOP::class_of($self)->get_all_attributes ) {
242 |  |  |  |  | push @{ $attr->has_init_arg ? \@init : \@non_init }, $attr;
243 |  |  |  |  | }
244 |  |  |  |  |
245 |  |  |  |  | my %new_params = ( ( map { $_->init_arg => $_->get_value($self) } @init ), %params );
246 |  |  |  |  |
247 |  |  |  |  | my $name = delete $new_params{name};
248 |  |  |  |  |
249 |  |  |  |  | my $clone = $class->new($name, %new_params, __hack_no_process_options => 1 );
250 |  |  |  |  |
251 |  |  |  |  | foreach my $attr ( @non_init ) {
252 |  |  |  |  | $attr->set_value($clone, $attr->get_value($self));
253 |  |  |  |  | }
254 |  |  |  |  |
255 |  |  |  |  | return $clone;
256 |  |  |  |  | }
257 |  |  |  |  |
258 |  |  |  |  | # spent 40µs within Moose::Meta::Attribute::_process_options which was called 5 times, avg 8µs/call: # 5 times (40µs+0s) by Moose::Meta::Attribute::new at line 52, avg 8µs/call sub _process_options {
259 | 45 | 35µs |  |  | my ($class, $name, $options) = @_;
260 |  |  |  |  |
261 | 4 | 3µs |  |  | if (exists $options->{is}) {
262 |  |  |  |  |
263 |  |  |  |  | ### -------------------------
264 |  |  |  |  | ## is => ro, writer => _foo # turns into (reader => foo, writer => _foo) as before
265 |  |  |  |  | ## is => rw, writer => _foo # turns into (reader => foo, writer => _foo)
266 |  |  |  |  | ## is => rw, accessor => _foo # turns into (accessor => _foo)
267 |  |  |  |  | ## is => ro, accessor => _foo # error, accesor is rw
268 |  |  |  |  | ### -------------------------
269 |  |  |  |  |
270 | 8 | 4µs |  |  | if ($options->{is} eq 'ro') {
271 |  |  |  |  | $class->throw_error("Cannot define an accessor name on a read-only attribute, accessors are read/write", data => $options)
272 |  |  |  |  | if exists $options->{accessor};
273 |  |  |  |  | $options->{reader} ||= $name;
274 |  |  |  |  | }
275 |  |  |  |  | elsif ($options->{is} eq 'rw') {
276 |  |  |  |  | if ($options->{writer}) {
277 |  |  |  |  | $options->{reader} ||= $name;
278 |  |  |  |  | }
279 |  |  |  |  | else {
280 |  |  |  |  | $options->{accessor} ||= $name;
281 |  |  |  |  | }
282 |  |  |  |  | }
283 |  |  |  |  | elsif ($options->{is} eq 'bare') {
284 |  |  |  |  | # do nothing, but don't complain (later) about missing methods
285 |  |  |  |  | }
286 |  |  |  |  | else {
287 |  |  |  |  | $class->throw_error("I do not understand this option (is => " . $options->{is} . ") on attribute ($name)", data => $options->{is});
288 |  |  |  |  | }
289 |  |  |  |  | }
290 |  |  |  |  |
291 |  |  |  |  | if (exists $options->{isa}) {
292 |  |  |  |  | if (exists $options->{does}) {
293 |  |  |  |  | if (try { $options->{isa}->can('does') }) {
294 |  |  |  |  | ($options->{isa}->does($options->{does}))
295 |  |  |  |  | || $class->throw_error("Cannot have an isa option and a does option if the isa does not do the does on attribute ($name)", data => $options);
296 |  |  |  |  | }
297 |  |  |  |  | else {
298 |  |  |  |  | $class->throw_error("Cannot have an isa option which cannot ->does() on attribute ($name)", data => $options);
299 |  |  |  |  | }
300 |  |  |  |  | }
301 |  |  |  |  |
302 |  |  |  |  | # allow for anon-subtypes here ...
303 |  |  |  |  | if (blessed($options->{isa}) && $options->{isa}->isa('Moose::Meta::TypeConstraint')) {
304 |  |  |  |  | $options->{type_constraint} = $options->{isa};
305 |  |  |  |  | }
306 |  |  |  |  | else {
307 |  |  |  |  | $options->{type_constraint} = Moose::Util::TypeConstraints::find_or_create_isa_type_constraint($options->{isa});
308 |  |  |  |  | }
309 |  |  |  |  | }
310 |  |  |  |  | elsif (exists $options->{does}) {
311 |  |  |  |  | # allow for anon-subtypes here ...
312 |  |  |  |  | if (blessed($options->{does}) && $options->{does}->isa('Moose::Meta::TypeConstraint')) {
313 |  |  |  |  | $options->{type_constraint} = $options->{does};
314 |  |  |  |  | }
315 |  |  |  |  | else {
316 |  |  |  |  | $options->{type_constraint} = Moose::Util::TypeConstraints::find_or_create_does_type_constraint($options->{does});
317 |  |  |  |  | }
318 |  |  |  |  | }
319 |  |  |  |  |
320 |  |  |  |  | if (exists $options->{coerce} && $options->{coerce}) {
321 |  |  |  |  | (exists $options->{type_constraint})
322 |  |  |  |  | || $class->throw_error("You cannot have coercion without specifying a type constraint on attribute ($name)", data => $options);
323 |  |  |  |  | $class->throw_error("You cannot have a weak reference to a coerced value on attribute ($name)", data => $options)
324 |  |  |  |  | if $options->{weak_ref};
325 |  |  |  |  | }
326 |  |  |  |  |
327 |  |  |  |  | if (exists $options->{trigger}) {
328 |  |  |  |  | ('CODE' eq ref $options->{trigger})
329 |  |  |  |  | || $class->throw_error("Trigger must be a CODE ref on attribute ($name)", data => $options->{trigger});
330 |  |  |  |  | }
331 |  |  |  |  |
332 |  |  |  |  | if (exists $options->{auto_deref} && $options->{auto_deref}) {
333 |  |  |  |  | (exists $options->{type_constraint})
334 |  |  |  |  | || $class->throw_error("You cannot auto-dereference without specifying a type constraint on attribute ($name)", data => $options);
335 |  |  |  |  | ($options->{type_constraint}->is_a_type_of('ArrayRef') ||
336 |  |  |  |  | $options->{type_constraint}->is_a_type_of('HashRef'))
337 |  |  |  |  | || $class->throw_error("You cannot auto-dereference anything other than a ArrayRef or HashRef on attribute ($name)", data => $options);
338 |  |  |  |  | }
339 |  |  |  |  |
340 |  |  |  |  | if (exists $options->{lazy_build} && $options->{lazy_build} == 1) {
341 |  |  |  |  | $class->throw_error("You can not use lazy_build and default for the same attribute ($name)", data => $options)
342 |  |  |  |  | if exists $options->{default};
343 |  |  |  |  | $options->{lazy} = 1;
344 |  |  |  |  | $options->{builder} ||= "_build_${name}";
345 |  |  |  |  | if ($name =~ /^_/) {
346 |  |  |  |  | $options->{clearer} ||= "_clear${name}";
347 |  |  |  |  | $options->{predicate} ||= "_has${name}";
348 |  |  |  |  | }
349 |  |  |  |  | else {
350 |  |  |  |  | $options->{clearer} ||= "clear_${name}";
351 |  |  |  |  | $options->{predicate} ||= "has_${name}";
352 |  |  |  |  | }
353 |  |  |  |  | }
354 |  |  |  |  |
355 |  |  |  |  | if (exists $options->{lazy} && $options->{lazy}) {
356 |  |  |  |  | (exists $options->{default} || defined $options->{builder} )
357 |  |  |  |  | || $class->throw_error("You cannot have lazy attribute ($name) without specifying a default value for it", data => $options);
358 |  |  |  |  | }
359 |  |  |  |  |
360 |  |  |  |  | if ( $options->{required} && !( ( !exists $options->{init_arg} || defined $options->{init_arg} ) || exists $options->{default} || defined $options->{builder} ) ) {
361 |  |  |  |  | $class->throw_error("You cannot have a required attribute ($name) without a default, builder, or an init_arg", data => $options);
362 |  |  |  |  | }
363 |  |  |  |  |
364 |  |  |  |  | }
365 |  |  |  |  |
366 |  |  |  |  | sub initialize_instance_slot {
367 |  |  |  |  | my ($self, $meta_instance, $instance, $params) = @_;
368 |  |  |  |  | my $init_arg = $self->init_arg();
369 |  |  |  |  | # try to fetch the init arg from the %params ...
370 |  |  |  |  |
371 |  |  |  |  | my $val;
372 |  |  |  |  | my $value_is_set;
373 |  |  |  |  | if ( defined($init_arg) and exists $params->{$init_arg}) {
374 |  |  |  |  | $val = $params->{$init_arg};
375 |  |  |  |  | $value_is_set = 1;
376 |  |  |  |  | }
377 |  |  |  |  | else {
378 |  |  |  |  | # skip it if it's lazy
379 |  |  |  |  | return if $self->is_lazy;
380 |  |  |  |  | # and die if it's required and doesn't have a default value
381 |  |  |  |  | $self->throw_error("Attribute (" . $self->name . ") is required", object => $instance, data => $params)
382 |  |  |  |  | if $self->is_required && !$self->has_default && !$self->has_builder;
383 |  |  |  |  |
384 |  |  |  |  | # if nothing was in the %params, we can use the
385 |  |  |  |  | # attribute's default value (if it has one)
386 |  |  |  |  | if ($self->has_default) {
387 |  |  |  |  | $val = $self->default($instance);
388 |  |  |  |  | $value_is_set = 1;
389 |  |  |  |  | }
390 |  |  |  |  | elsif ($self->has_builder) {
391 |  |  |  |  | $val = $self->_call_builder($instance);
392 |  |  |  |  | $value_is_set = 1;
393 |  |  |  |  | }
394 |  |  |  |  | }
395 |  |  |  |  |
396 |  |  |  |  | return unless $value_is_set;
397 |  |  |  |  |
398 |  |  |  |  | $val = $self->_coerce_and_verify( $val, $instance );
399 |  |  |  |  |
400 |  |  |  |  | $self->set_initial_value($instance, $val);
401 |  |  |  |  |
402 |  |  |  |  | if ( ref $val && $self->is_weak_ref ) {
403 |  |  |  |  | $self->_weaken_value($instance);
404 |  |  |  |  | }
405 |  |  |  |  | }
406 |  |  |  |  |
407 |  |  |  |  | sub _call_builder {
408 |  |  |  |  | my ( $self, $instance ) = @_;
409 |  |  |  |  |
410 |  |  |  |  | my $builder = $self->builder();
411 |  |  |  |  |
412 |  |  |  |  | return $instance->$builder()
413 |  |  |  |  | if $instance->can( $self->builder );
414 |  |  |  |  |
415 |  |  |  |  | $self->throw_error( blessed($instance)
416 |  |  |  |  | . " does not support builder method '"
417 |  |  |  |  | . $self->builder
418 |  |  |  |  | . "' for attribute '"
419 |  |  |  |  | . $self->name
420 |  |  |  |  | . "'",
421 |  |  |  |  | object => $instance,
422 |  |  |  |  | );
423 |  |  |  |  | }
424 |  |  |  |  |
425 |  |  |  |  | ## Slot management
426 |  |  |  |  |
427 |  |  |  |  | # FIXME:
428 |  |  |  |  | # this duplicates too much code from
429 |  |  |  |  | # Class::MOP::Attribute, we need to
430 |  |  |  |  | # refactor these bits eventually.
431 |  |  |  |  | # - SL
432 |  |  |  |  | sub _set_initial_slot_value {
433 |  |  |  |  | my ($self, $meta_instance, $instance, $value) = @_;
434 |  |  |  |  |
435 |  |  |  |  | my $slot_name = $self->name;
436 |  |  |  |  |
437 |  |  |  |  | return $meta_instance->set_slot_value($instance, $slot_name, $value)
438 |  |  |  |  | unless $self->has_initializer;
439 |  |  |  |  |
440 |  |  |  |  | my ($type_constraint, $can_coerce);
441 |  |  |  |  | if ($self->has_type_constraint) {
442 |  |  |  |  | $type_constraint = $self->type_constraint;
443 |  |  |  |  | $can_coerce = ($self->should_coerce && $type_constraint->has_coercion);
444 |  |  |  |  | }
445 |  |  |  |  |
446 |  |  |  |  | my $callback = sub {
447 |  |  |  |  | my $val = $self->_coerce_and_verify( shift, $instance );;
448 |  |  |  |  |
449 |  |  |  |  | $meta_instance->set_slot_value($instance, $slot_name, $val);
450 |  |  |  |  | };
451 |  |  |  |  |
452 |  |  |  |  | my $initializer = $self->initializer;
453 |  |  |  |  |
454 |  |  |  |  | # most things will just want to set a value, so make it first arg
455 |  |  |  |  | $instance->$initializer($value, $callback, $self);
456 |  |  |  |  | }
457 |  |  |  |  |
458 |  |  |  |  | sub set_value {
459 |  |  |  |  | my ($self, $instance, @args) = @_;
460 |  |  |  |  | my $value = $args[0];
461 |  |  |  |  |
462 |  |  |  |  | my $attr_name = $self->name;
463 |  |  |  |  |
464 |  |  |  |  | if ($self->is_required and not @args) {
465 |  |  |  |  | $self->throw_error("Attribute ($attr_name) is required", object => $instance);
466 |  |  |  |  | }
467 |  |  |  |  |
468 |  |  |  |  | $value = $self->_coerce_and_verify( $value, $instance );
469 |  |  |  |  |
470 |  |  |  |  | my @old;
471 |  |  |  |  | if ( $self->has_trigger && $self->has_value($instance) ) {
472 |  |  |  |  | @old = $self->get_value($instance, 'for trigger');
473 |  |  |  |  | }
474 |  |  |  |  |
475 |  |  |  |  | $self->SUPER::set_value($instance, $value);
476 |  |  |  |  |
477 |  |  |  |  | if ( ref $value && $self->is_weak_ref ) {
478 |  |  |  |  | $self->_weaken_value($instance);
479 |  |  |  |  | }
480 |  |  |  |  |
481 |  |  |  |  | if ($self->has_trigger) {
482 |  |  |  |  | $self->trigger->($instance, $value, @old);
483 |  |  |  |  | }
484 |  |  |  |  | }
485 |  |  |  |  |
486 |  |  |  |  | sub _weaken_value {
487 |  |  |  |  | my ( $self, $instance ) = @_;
488 |  |  |  |  |
489 |  |  |  |  | my $meta_instance = Class::MOP::Class->initialize( blessed($instance) )
490 |  |  |  |  | ->get_meta_instance;
491 |  |  |  |  |
492 |  |  |  |  | $meta_instance->weaken_slot_value( $instance, $self->name );
493 |  |  |  |  | }
494 |  |  |  |  |
495 |  |  |  |  | sub get_value {
496 |  |  |  |  | my ($self, $instance, $for_trigger) = @_;
497 |  |  |  |  |
498 |  |  |  |  | if ($self->is_lazy) {
499 |  |  |  |  | unless ($self->has_value($instance)) {
500 |  |  |  |  | my $value;
501 |  |  |  |  | if ($self->has_default) {
502 |  |  |  |  | $value = $self->default($instance);
503 |  |  |  |  | } elsif ( $self->has_builder ) {
504 |  |  |  |  | $value = $self->_call_builder($instance);
505 |  |  |  |  | }
506 |  |  |  |  |
507 |  |  |  |  | $value = $self->_coerce_and_verify( $value, $instance );
508 |  |  |  |  |
509 |  |  |  |  | $self->set_initial_value($instance, $value);
510 |  |  |  |  | }
511 |  |  |  |  | }
512 |  |  |  |  |
513 |  |  |  |  | if ( $self->should_auto_deref && ! $for_trigger ) {
514 |  |  |  |  |
515 |  |  |  |  | my $type_constraint = $self->type_constraint;
516 |  |  |  |  |
517 |  |  |  |  | if ($type_constraint->is_a_type_of('ArrayRef')) {
518 |  |  |  |  | my $rv = $self->SUPER::get_value($instance);
519 |  |  |  |  | return unless defined $rv;
520 |  |  |  |  | return wantarray ? @{ $rv } : $rv;
521 |  |  |  |  | }
522 |  |  |  |  | elsif ($type_constraint->is_a_type_of('HashRef')) {
523 |  |  |  |  | my $rv = $self->SUPER::get_value($instance);
524 |  |  |  |  | return unless defined $rv;
525 |  |  |  |  | return wantarray ? %{ $rv } : $rv;
526 |  |  |  |  | }
527 |  |  |  |  | else {
528 |  |  |  |  | $self->throw_error("Can not auto de-reference the type constraint '" . $type_constraint->name . "'", object => $instance, type_constraint => $type_constraint);
529 |  |  |  |  | }
530 |  |  |  |  |
531 |  |  |  |  | }
532 |  |  |  |  | else {
533 |  |  |  |  |
534 |  |  |  |  | return $self->SUPER::get_value($instance);
535 |  |  |  |  | }
536 |  |  |  |  | }
537 |  |  |  |  |
538 |  |  |  |  | ## installing accessors
539 |  |  |  |  |
540 | 6 | 17µs |  |  | # spent 8µs within Moose::Meta::Attribute::accessor_metaclass which was called 6 times, avg 1µs/call: # 6 times (8µs+0s) by Class::MOP::Attribute::__ANON__[/usr/local/lib/perl5/site_perl/5.10.1/darwin-2level/Class/MOP/Attribute.pm:340] at line 332 of Class/MOP/Attribute.pm, avg 1µs/call sub accessor_metaclass { 'Moose::Meta::Method::Accessor' }
541 |  |  |  |  |
542 |  |  |  |  | # spent 5.53ms (73µs+5.46) within Moose::Meta::Attribute::install_accessors which was called 6 times, avg 922µs/call: # 5 times (60µs+4.38ms) by Class::MOP::Class::__ANON__[/usr/local/lib/perl5/site_perl/5.10.1/darwin-2level/Class/MOP/Class.pm:515] at line 514 of Class/MOP/Class.pm, avg 888µs/call # once (13µs+1.08ms) by Class::MOP::Class::_inline_accessors at line 1030 of Class/MOP/Class.pm sub install_accessors {
543 | 24 | 64µs |  |  | my $self = shift;
544 |  |  |  |  | $self->SUPER::install_accessors(@_); # spent 5.38ms making 6 calls to Class::MOP::Attribute::install_accessors, avg 897µs/call
545 |  |  |  |  | $self->install_delegation if $self->has_handles; # spent 73µs making 6 calls to Moose::Meta::Mixin::AttributeCore::has_handles, avg 12µs/call
546 |  |  |  |  | return;
547 |  |  |  |  | }
548 |  |  |  |  |
549 |  |  |  |  | # spent 26µs (20+5) within Moose::Meta::Attribute::_check_associated_methods which was called 4 times, avg 6µs/call: # 4 times (20µs+5µs) by Moose::Meta::Class::add_attribute at line 303 of Moose/Meta/Class.pm, avg 6µs/call sub _check_associated_methods {
550 | 8 | 17µs |  |  | my $self = shift;
551 |  |  |  |  | unless ( # spent 5µs making 4 calls to Class::MOP::Attribute::associated_methods, avg 1µs/call
552 |  |  |  |  | @{ $self->associated_methods }
553 |  |  |  |  | || ($self->_is_metadata || '') eq 'bare'
554 |  |  |  |  | ) {
555 |  |  |  |  | Carp::cluck(
556 |  |  |  |  | 'Attribute (' . $self->name . ') of class '
557 |  |  |  |  | . $self->associated_class->name
558 |  |  |  |  | . ' has no associated methods'
559 |  |  |  |  | . ' (did you mean to provide an "is" argument?)'
560 |  |  |  |  | . "\n"
561 |  |  |  |  | )
562 |  |  |  |  | }
563 |  |  |  |  | }
564 |  |  |  |  |
565 |  |  |  |  | # spent 4.80ms (96µs+4.71) within Moose::Meta::Attribute::_process_accessors which was called 6 times, avg 801µs/call: # 6 times (96µs+4.71ms) by Class::MOP::Attribute::install_accessors at line 358 of Class/MOP/Attribute.pm, avg 801µs/call sub _process_accessors {
566 | 36 | 74µs |  |  | my $self = shift;
567 |  |  |  |  | my ($type, $accessor, $generate_as_inline_methods) = @_;
568 |  |  |  |  | $accessor = (keys %$accessor)[0] if (ref($accessor)||'') eq 'HASH';
569 |  |  |  |  | my $method = $self->associated_class->get_method($accessor); # spent 237µs making 6 calls to Class::MOP::Mixin::HasMethods::get_method, avg 39µs/call # spent 5µs making 6 calls to Class::MOP::Attribute::associated_class, avg 900ns/call
570 |  |  |  |  | if ($method && !$method->isa('Class::MOP::Method::Accessor') # spent 1µs making 1 call to UNIVERSAL::isa
571 |  |  |  |  | && (!$self->definition_context
572 |  |  |  |  | || $method->package_name eq $self->definition_context->{package})) {
573 |  |  |  |  | Carp::cluck(
574 |  |  |  |  | "You are overwriting a locally defined method ($accessor) with "
575 |  |  |  |  | . "an accessor"
576 |  |  |  |  | );
577 |  |  |  |  | }
578 |  |  |  |  | $self->SUPER::_process_accessors(@_); # spent 4.46ms making 6 calls to Class::MOP::Attribute::_process_accessors, avg 744µs/call
579 |  |  |  |  | }
580 |  |  |  |  |
581 |  |  |  |  | sub remove_accessors {
582 |  |  |  |  | my $self = shift;
583 |  |  |  |  | $self->SUPER::remove_accessors(@_);
584 |  |  |  |  | $self->remove_delegation if $self->has_handles;
585 |  |  |  |  | return;
586 |  |  |  |  | }
587 |  |  |  |  |
588 |  |  |  |  | sub install_delegation {
589 |  |  |  |  | my $self = shift;
590 |  |  |  |  |
591 |  |  |  |  | # NOTE:
592 |  |  |  |  | # Here we canonicalize the 'handles' option
593 |  |  |  |  | # this will sort out any details and always
594 |  |  |  |  | # return an hash of methods which we want
595 |  |  |  |  | # to delagate to, see that method for details
596 |  |  |  |  | my %handles = $self->_canonicalize_handles;
597 |  |  |  |  |
598 |  |  |  |  |
599 |  |  |  |  | # install the delegation ...
600 |  |  |  |  | my $associated_class = $self->associated_class;
601 |  |  |  |  | foreach my $handle (keys %handles) {
602 |  |  |  |  | my $method_to_call = $handles{$handle};
603 |  |  |  |  | my $class_name = $associated_class->name;
604 |  |  |  |  | my $name = "${class_name}::${handle}";
605 |  |  |  |  |
606 |  |  |  |  | (!$associated_class->has_method($handle))
607 |  |  |  |  | || $self->throw_error("You cannot overwrite a locally defined method ($handle) with a delegation", method_name => $handle);
608 |  |  |  |  |
609 |  |  |  |  | # NOTE:
610 |  |  |  |  | # handles is not allowed to delegate
611 |  |  |  |  | # any of these methods, as they will
612 |  |  |  |  | # override the ones in your class, which
613 |  |  |  |  | # is almost certainly not what you want.
614 |  |  |  |  |
615 |  |  |  |  | # FIXME warn when $handle was explicitly specified, but not if the source is a regex or something
616 |  |  |  |  | #cluck("Not delegating method '$handle' because it is a core method") and
617 |  |  |  |  | next if $class_name->isa("Moose::Object") and $handle =~ /^BUILD|DEMOLISH$/ || Moose::Object->can($handle);
618 |  |  |  |  |
619 |  |  |  |  | my $method = $self->_make_delegation_method($handle, $method_to_call);
620 |  |  |  |  |
621 |  |  |  |  | $self->associated_class->add_method($method->name, $method);
622 |  |  |  |  | $self->associate_method($method);
623 |  |  |  |  | }
624 |  |  |  |  | }
625 |  |  |  |  |
626 |  |  |  |  | sub remove_delegation {
627 |  |  |  |  | my $self = shift;
628 |  |  |  |  | my %handles = $self->_canonicalize_handles;
629 |  |  |  |  | my $associated_class = $self->associated_class;
630 |  |  |  |  | foreach my $handle (keys %handles) {
631 |  |  |  |  | next unless any { $handle eq $_ }
632 |  |  |  |  | map { $_->name }
633 |  |  |  |  | @{ $self->associated_methods };
634 |  |  |  |  | $self->associated_class->remove_method($handle);
635 |  |  |  |  | }
636 |  |  |  |  | }
637 |  |  |  |  |
638 |  |  |  |  | # private methods to help delegation ...
639 |  |  |  |  |
640 |  |  |  |  | sub _canonicalize_handles {
641 |  |  |  |  | my $self = shift;
642 |  |  |  |  | my $handles = $self->handles;
643 |  |  |  |  | if (my $handle_type = ref($handles)) {
644 |  |  |  |  | if ($handle_type eq 'HASH') {
645 |  |  |  |  | return %{$handles};
646 |  |  |  |  | }
647 |  |  |  |  | elsif ($handle_type eq 'ARRAY') {
648 |  |  |  |  | return map { $_ => $_ } @{$handles};
649 |  |  |  |  | }
650 |  |  |  |  | elsif ($handle_type eq 'Regexp') {
651 |  |  |  |  | ($self->has_type_constraint)
652 |  |  |  |  | || $self->throw_error("Cannot delegate methods based on a Regexp without a type constraint (isa)", data => $handles);
653 |  |  |  |  | return map { ($_ => $_) }
654 |  |  |  |  | grep { /$handles/ } $self->_get_delegate_method_list;
655 |  |  |  |  | }
656 |  |  |  |  | elsif ($handle_type eq 'CODE') {
657 |  |  |  |  | return $handles->($self, $self->_find_delegate_metaclass);
658 |  |  |  |  | }
659 |  |  |  |  | elsif (blessed($handles) && $handles->isa('Moose::Meta::TypeConstraint::DuckType')) {
660 |  |  |  |  | return map { $_ => $_ } @{ $handles->methods };
661 |  |  |  |  | }
662 |  |  |  |  | else {
663 |  |  |  |  | $self->throw_error("Unable to canonicalize the 'handles' option with $handles", data => $handles);
664 |  |  |  |  | }
665 |  |  |  |  | }
666 |  |  |  |  | else {
667 |  |  |  |  | Class::MOP::load_class($handles);
668 |  |  |  |  | my $role_meta = Class::MOP::class_of($handles);
669 |  |  |  |  |
670 |  |  |  |  | (blessed $role_meta && $role_meta->isa('Moose::Meta::Role'))
671 |  |  |  |  | || $self->throw_error("Unable to canonicalize the 'handles' option with $handles because its metaclass is not a Moose::Meta::Role", data => $handles);
672 |  |  |  |  |
673 |  |  |  |  | return map { $_ => $_ }
674 |  |  |  |  | grep { $_ ne 'meta' } (
675 |  |  |  |  | $role_meta->get_method_list,
676 |  |  |  |  | map { $_->name } $role_meta->get_required_method_list,
677 |  |  |  |  | );
678 |  |  |  |  | }
679 |  |  |  |  | }
680 |  |  |  |  |
681 |  |  |  |  | sub _find_delegate_metaclass {
682 |  |  |  |  | my $self = shift;
683 |  |  |  |  | if (my $class = $self->_isa_metadata) {
684 |  |  |  |  | # we might be dealing with a non-Moose class,
685 |  |  |  |  | # and need to make our own metaclass. if there's
686 |  |  |  |  | # already a metaclass, it will be returned
687 |  |  |  |  | return Moose::Meta::Class->initialize($class);
688 |  |  |  |  | }
689 |  |  |  |  | elsif (my $role = $self->_does_metadata) {
690 |  |  |  |  | return Class::MOP::class_of($role);
691 |  |  |  |  | }
692 |  |  |  |  | else {
693 |  |  |  |  | $self->throw_error("Cannot find delegate metaclass for attribute " . $self->name);
694 |  |  |  |  | }
695 |  |  |  |  | }
696 |  |  |  |  |
697 |  |  |  |  | sub _get_delegate_method_list {
698 |  |  |  |  | my $self = shift;
699 |  |  |  |  | my $meta = $self->_find_delegate_metaclass;
700 |  |  |  |  | if ($meta->isa('Class::MOP::Class')) {
701 |  |  |  |  | return map { $_->name } # NOTE: !never! delegate &meta
702 |  |  |  |  | grep { $_->package_name ne 'Moose::Object' && $_->name ne 'meta' }
703 |  |  |  |  | $meta->get_all_methods;
704 |  |  |  |  | }
705 |  |  |  |  | elsif ($meta->isa('Moose::Meta::Role')) {
706 |  |  |  |  | return $meta->get_method_list;
707 |  |  |  |  | }
708 |  |  |  |  | else {
709 |  |  |  |  | $self->throw_error("Unable to recognize the delegate metaclass '$meta'", data => $meta);
710 |  |  |  |  | }
711 |  |  |  |  | }
712 |  |  |  |  |
713 |  |  |  |  | sub delegation_metaclass { 'Moose::Meta::Method::Delegation' }
714 |  |  |  |  |
715 |  |  |  |  | sub _make_delegation_method {
716 |  |  |  |  | my ( $self, $handle_name, $method_to_call ) = @_;
717 |  |  |  |  |
718 |  |  |  |  | my @curried_arguments;
719 |  |  |  |  |
720 |  |  |  |  | ($method_to_call, @curried_arguments) = @$method_to_call
721 |  |  |  |  | if 'ARRAY' eq ref($method_to_call);
722 |  |  |  |  |
723 |  |  |  |  | return $self->delegation_metaclass->new(
724 |  |  |  |  | name => $handle_name,
725 |  |  |  |  | package_name => $self->associated_class->name,
726 |  |  |  |  | attribute => $self,
727 |  |  |  |  | delegate_to_method => $method_to_call,
728 |  |  |  |  | curried_arguments => \@curried_arguments,
729 |  |  |  |  | );
730 |  |  |  |  | }
731 |  |  |  |  |
732 |  |  |  |  | sub _coerce_and_verify {
733 |  |  |  |  | my $self = shift;
734 |  |  |  |  | my $val = shift;
735 |  |  |  |  | my $instance = shift;
736 |  |  |  |  |
737 |  |  |  |  | return $val unless $self->has_type_constraint;
738 |  |  |  |  |
739 |  |  |  |  | my $type_constraint = $self->type_constraint;
740 |  |  |  |  | if ($self->should_coerce && $type_constraint->has_coercion) {
741 |  |  |  |  | $val = $type_constraint->coerce($val);
742 |  |  |  |  | }
743 |  |  |  |  |
744 |  |  |  |  | $self->verify_against_type_constraint($val, instance => $instance);
745 |  |  |  |  |
746 |  |  |  |  | return $val;
747 |  |  |  |  | }
748 |  |  |  |  |
749 |  |  |  |  | sub verify_against_type_constraint {
750 |  |  |  |  | my $self = shift;
751 |  |  |  |  | my $val = shift;
752 |  |  |  |  |
753 |  |  |  |  | return 1 if !$self->has_type_constraint;
754 |  |  |  |  |
755 |  |  |  |  | my $type_constraint = $self->type_constraint;
756 |  |  |  |  |
757 |  |  |  |  | $type_constraint->check($val)
758 |  |  |  |  | || $self->throw_error("Attribute ("
759 |  |  |  |  | . $self->name
760 |  |  |  |  | . ") does not pass the type constraint because: "
761 |  |  |  |  | . $type_constraint->get_message($val), data => $val, @_);
762 |  |  |  |  | }
763 |  |  |  |  |
764 |  |  |  |  | package Moose::Meta::Attribute::Custom::Moose;
765 |  |  |  |  | sub register_implementation { 'Moose::Meta::Attribute' }
766 |  |  |  |  |
767 | 1 | 10µs |  |  | 1;
768 |  |  |  |  |
769 |  |  |  |  | __END__
770 |  |  |  |  |
771 |  |  |  |  | =pod
772 |  |  |  |  |
773 |  |  |  |  | =head1 NAME
774 |  |  |  |  |
775 |  |  |  |  | Moose::Meta::Attribute - The Moose attribute metaclass
776 |  |  |  |  |
777 |  |  |  |  | =head1 DESCRIPTION
778 |  |  |  |  |
779 |  |  |  |  | This class is a subclass of L<Class::MOP::Attribute> that provides
780 |  |  |  |  | additional Moose-specific functionality.
781 |  |  |  |  |
782 |  |  |  |  | To really understand this class, you will need to start with the
783 |  |  |  |  | L<Class::MOP::Attribute> documentation. This class can be understood
784 |  |  |  |  | as a set of additional features on top of the basic feature provided
785 |  |  |  |  | by that parent class.
786 |  |  |  |  |
787 |  |  |  |  | =head1 INHERITANCE
788 |  |  |  |  |
789 |  |  |  |  | C<Moose::Meta::Attribute> is a subclass of L<Class::MOP::Attribute>.
790 |  |  |  |  |
791 |  |  |  |  | =head1 METHODS
792 |  |  |  |  |
793 |  |  |  |  | Many of the documented below override methods in
794 |  |  |  |  | L<Class::MOP::Attribute> and add Moose specific features.
795 |  |  |  |  |
796 |  |  |  |  | =head2 Creation
797 |  |  |  |  |
798 |  |  |  |  | =over 4
799 |  |  |  |  |
800 |  |  |  |  | =item B<< Moose::Meta::Attribute->new(%options) >>
801 |  |  |  |  |
802 |  |  |  |  | This method overrides the L<Class::MOP::Attribute> constructor.
803 |  |  |  |  |
804 |  |  |  |  | Many of the options below are described in more detail in the
805 |  |  |  |  | L<Moose::Manual::Attributes> document.
806 |  |  |  |  |
807 |  |  |  |  | It adds the following options to the constructor:
808 |  |  |  |  |
809 |  |  |  |  | =over 8
810 |  |  |  |  |
811 |  |  |  |  | =item * is => 'ro', 'rw', 'bare'
812 |  |  |  |  |
813 |  |  |  |  | This provides a shorthand for specifying the C<reader>, C<writer>, or
814 |  |  |  |  | C<accessor> names. If the attribute is read-only ('ro') then it will
815 |  |  |  |  | have a C<reader> method with the same attribute as the name.
816 |  |  |  |  |
817 |  |  |  |  | If it is read-write ('rw') then it will have an C<accessor> method
818 |  |  |  |  | with the same name. If you provide an explicit C<writer> for a
819 |  |  |  |  | read-write attribute, then you will have a C<reader> with the same
820 |  |  |  |  | name as the attribute, and a C<writer> with the name you provided.
821 |  |  |  |  |
822 |  |  |  |  | Use 'bare' when you are deliberately not installing any methods
823 |  |  |  |  | (accessor, reader, etc.) associated with this attribute; otherwise,
824 |  |  |  |  | Moose will issue a deprecation warning when this attribute is added to a
825 |  |  |  |  | metaclass.
826 |  |  |  |  |
827 |  |  |  |  | =item * isa => $type
828 |  |  |  |  |
829 |  |  |  |  | This option accepts a type. The type can be a string, which should be
830 |  |  |  |  | a type name. If the type name is unknown, it is assumed to be a class
831 |  |  |  |  | name.
832 |  |  |  |  |
833 |  |  |  |  | This option can also accept a L<Moose::Meta::TypeConstraint> object.
834 |  |  |  |  |
835 |  |  |  |  | If you I<also> provide a C<does> option, then your C<isa> option must
836 |  |  |  |  | be a class name, and that class must do the role specified with
837 |  |  |  |  | C<does>.
838 |  |  |  |  |
839 |  |  |  |  | =item * does => $role
840 |  |  |  |  |
841 |  |  |  |  | This is short-hand for saying that the attribute's type must be an
842 |  |  |  |  | object which does the named role.
843 |  |  |  |  |
844 |  |  |  |  | =item * coerce => $bool
845 |  |  |  |  |
846 |  |  |  |  | This option is only valid for objects with a type constraint
847 |  |  |  |  | (C<isa>). If this is true, then coercions will be applied whenever
848 |  |  |  |  | this attribute is set.
849 |  |  |  |  |
850 |  |  |  |  | You can make both this and the C<weak_ref> option true.
851 |  |  |  |  |
852 |  |  |  |  | =item * trigger => $sub
853 |  |  |  |  |
854 |  |  |  |  | This option accepts a subroutine reference, which will be called after
855 |  |  |  |  | the attribute is set.
856 |  |  |  |  |
857 |  |  |  |  | =item * required => $bool
858 |  |  |  |  |
859 |  |  |  |  | An attribute which is required must be provided to the constructor. An
860 |  |  |  |  | attribute which is required can also have a C<default> or C<builder>,
861 |  |  |  |  | which will satisfy its required-ness.
862 |  |  |  |  |
863 |  |  |  |  | A required attribute must have a C<default>, C<builder> or a
864 |  |  |  |  | non-C<undef> C<init_arg>
865 |  |  |  |  |
866 |  |  |  |  | =item * lazy => $bool
867 |  |  |  |  |
868 |  |  |  |  | A lazy attribute must have a C<default> or C<builder>. When an
869 |  |  |  |  | attribute is lazy, the default value will not be calculated until the
870 |  |  |  |  | attribute is read.
871 |  |  |  |  |
872 |  |  |  |  | =item * weak_ref => $bool
873 |  |  |  |  |
874 |  |  |  |  | If this is true, the attribute's value will be stored as a weak
875 |  |  |  |  | reference.
876 |  |  |  |  |
877 |  |  |  |  | =item * auto_deref => $bool
878 |  |  |  |  |
879 |  |  |  |  | If this is true, then the reader will dereference the value when it is
880 |  |  |  |  | called. The attribute must have a type constraint which defines the
881 |  |  |  |  | attribute as an array or hash reference.
882 |  |  |  |  |
883 |  |  |  |  | =item * lazy_build => $bool
884 |  |  |  |  |
885 |  |  |  |  | Setting this to true makes the attribute lazy and provides a number of
886 |  |  |  |  | default methods.
887 |  |  |  |  |
888 |  |  |  |  | has 'size' => (
889 |  |  |  |  | is => 'ro',
890 |  |  |  |  | lazy_build => 1,
891 |  |  |  |  | );
892 |  |  |  |  |
893 |  |  |  |  | is equivalent to this:
894 |  |  |  |  |
895 |  |  |  |  | has 'size' => (
896 |  |  |  |  | is => 'ro',
897 |  |  |  |  | lazy => 1,
898 |  |  |  |  | builder => '_build_size',
899 |  |  |  |  | clearer => 'clear_size',
900 |  |  |  |  | predicate => 'has_size',
901 |  |  |  |  | );
902 |  |  |  |  |
903 |  |  |  |  | =item * documentation
904 |  |  |  |  |
905 |  |  |  |  | An arbitrary string that can be retrieved later by calling C<<
906 |  |  |  |  | $attr->documentation >>.
907 |  |  |  |  |
908 |  |  |  |  | =back
909 |  |  |  |  |
910 |  |  |  |  | =item B<< $attr->clone(%options) >>
911 |  |  |  |  |
912 |  |  |  |  | This creates a new attribute based on attribute being cloned. You must
913 |  |  |  |  | supply a C<name> option to provide a new name for the attribute.
914 |  |  |  |  |
915 |  |  |  |  | The C<%options> can only specify options handled by
916 |  |  |  |  | L<Class::MOP::Attribute>.
917 |  |  |  |  |
918 |  |  |  |  | =back
919 |  |  |  |  |
920 |  |  |  |  | =head2 Value management
921 |  |  |  |  |
922 |  |  |  |  | =over 4
923 |  |  |  |  |
924 |  |  |  |  | =item B<< $attr->initialize_instance_slot($meta_instance, $instance, $params) >>
925 |  |  |  |  |
926 |  |  |  |  | This method is used internally to initialize the attribute's slot in
927 |  |  |  |  | the object C<$instance>.
928 |  |  |  |  |
929 |  |  |  |  | This overrides the L<Class::MOP::Attribute> method to handle lazy
930 |  |  |  |  | attributes, weak references, and type constraints.
931 |  |  |  |  |
932 |  |  |  |  | =item B<get_value>
933 |  |  |  |  |
934 |  |  |  |  | =item B<set_value>
935 |  |  |  |  |
936 |  |  |  |  | eval { $point->meta->get_attribute('x')->set_value($point, 'forty-two') };
937 |  |  |  |  | if($@) {
938 |  |  |  |  | print "Oops: $@\n";
939 |  |  |  |  | }
940 |  |  |  |  |
941 |  |  |  |  | I<Attribute (x) does not pass the type constraint (Int) with 'forty-two'>
942 |  |  |  |  |
943 |  |  |  |  | Before setting the value, a check is made on the type constraint of
944 |  |  |  |  | the attribute, if it has one, to see if the value passes it. If the
945 |  |  |  |  | value fails to pass, the set operation dies with a L<throw_error>.
946 |  |  |  |  |
947 |  |  |  |  | Any coercion to convert values is done before checking the type constraint.
948 |  |  |  |  |
949 |  |  |  |  | To check a value against a type constraint before setting it, fetch the
950 |  |  |  |  | attribute instance using L<Class::MOP::Class/find_attribute_by_name>,
951 |  |  |  |  | fetch the type_constraint from the attribute using L<Moose::Meta::Attribute/type_constraint>
952 |  |  |  |  | and call L<Moose::Meta::TypeConstraint/check>. See L<Moose::Cookbook::Basics::Recipe4>
953 |  |  |  |  | for an example.
954 |  |  |  |  |
955 |  |  |  |  | =back
956 |  |  |  |  |
957 |  |  |  |  | =head2 Attribute Accessor generation
958 |  |  |  |  |
959 |  |  |  |  | =over 4
960 |  |  |  |  |
961 |  |  |  |  | =item B<< $attr->install_accessors >>
962 |  |  |  |  |
963 |  |  |  |  | This method overrides the parent to also install delegation methods.
964 |  |  |  |  |
965 |  |  |  |  | If, after installing all methods, the attribute object has no associated
966 |  |  |  |  | methods, it throws an error unless C<< is => 'bare' >> was passed to the
967 |  |  |  |  | attribute constructor. (Trying to add an attribute that has no associated
968 |  |  |  |  | methods is almost always an error.)
969 |  |  |  |  |
970 |  |  |  |  | =item B<< $attr->remove_accessors >>
971 |  |  |  |  |
972 |  |  |  |  | This method overrides the parent to also remove delegation methods.
973 |  |  |  |  |
974 |  |  |  |  | =item B<< $attr->install_delegation >>
975 |  |  |  |  |
976 |  |  |  |  | This method adds its delegation methods to the attribute's associated
977 |  |  |  |  | class, if it has any to add.
978 |  |  |  |  |
979 |  |  |  |  | =item B<< $attr->remove_delegation >>
980 |  |  |  |  |
981 |  |  |  |  | This method remove its delegation methods from the attribute's
982 |  |  |  |  | associated class.
983 |  |  |  |  |
984 |  |  |  |  | =item B<< $attr->accessor_metaclass >>
985 |  |  |  |  |
986 |  |  |  |  | Returns the accessor metaclass name, which defaults to
987 |  |  |  |  | L<Moose::Meta::Method::Accessor>.
988 |  |  |  |  |
989 |  |  |  |  | =item B<< $attr->delegation_metaclass >>
990 |  |  |  |  |
991 |  |  |  |  | Returns the delegation metaclass name, which defaults to
992 |  |  |  |  | L<Moose::Meta::Method::Delegation>.
993 |  |  |  |  |
994 |  |  |  |  | =back
995 |  |  |  |  |
996 |  |  |  |  | =head2 Additional Moose features
997 |  |  |  |  |
998 |  |  |  |  | These methods are not found in the superclass. They support features
999 |  |  |  |  | provided by Moose.
1000 |  |  |  |  |
1001 |  |  |  |  | =over 4
1002 |  |  |  |  |
1003 |  |  |  |  | =item B<< $attr->does($role) >>
1004 |  |  |  |  |
1005 |  |  |  |  | This indicates whether the I<attribute itself> does the given
1006 |  |  |  |  | role. The role can be given as a full class name, or as a resolvable
1007 |  |  |  |  | trait name.
1008 |  |  |  |  |
1009 |  |  |  |  | Note that this checks the attribute itself, not its type constraint,
1010 |  |  |  |  | so it is checking the attribute's metaclass and any traits applied to
1011 |  |  |  |  | the attribute.
1012 |  |  |  |  |
1013 |  |  |  |  | =item B<< Moose::Meta::Class->interpolate_class_and_new($name, %options) >>
1014 |  |  |  |  |
1015 |  |  |  |  | This is an alternate constructor that handles the C<metaclass> and
1016 |  |  |  |  | C<traits> options.
1017 |  |  |  |  |
1018 |  |  |  |  | Effectively, this method is a factory that finds or creates the
1019 |  |  |  |  | appropriate class for the given C<metaclass> and/or C<traits>.
1020 |  |  |  |  |
1021 |  |  |  |  | Once it has the appropriate class, it will call C<< $class->new($name,
1022 |  |  |  |  | %options) >> on that class.
1023 |  |  |  |  |
1024 |  |  |  |  | =item B<< $attr->clone_and_inherit_options(%options) >>
1025 |  |  |  |  |
1026 |  |  |  |  | This method supports the C<has '+foo'> feature. It does various bits
1027 |  |  |  |  | of processing on the supplied C<%options> before ultimately calling
1028 |  |  |  |  | the C<clone> method.
1029 |  |  |  |  |
1030 |  |  |  |  | One of its main tasks is to make sure that the C<%options> provided
1031 |  |  |  |  | only includes the options returned by the
1032 |  |  |  |  | C<legal_options_for_inheritance> method.
1033 |  |  |  |  |
1034 |  |  |  |  | =item B<< $attr->legal_options_for_inheritance >>
1035 |  |  |  |  |
1036 |  |  |  |  | This returns a whitelist of options that can be overridden in a
1037 |  |  |  |  | subclass's attribute definition.
1038 |  |  |  |  |
1039 |  |  |  |  | This exists to allow a custom metaclass to change or add to the list
1040 |  |  |  |  | of options which can be changed.
1041 |  |  |  |  |
1042 |  |  |  |  | =item B<< $attr->type_constraint >>
1043 |  |  |  |  |
1044 |  |  |  |  | Returns the L<Moose::Meta::TypeConstraint> object for this attribute,
1045 |  |  |  |  | if it has one.
1046 |  |  |  |  |
1047 |  |  |  |  | =item B<< $attr->has_type_constraint >>
1048 |  |  |  |  |
1049 |  |  |  |  | Returns true if this attribute has a type constraint.
1050 |  |  |  |  |
1051 |  |  |  |  | =item B<< $attr->verify_against_type_constraint($value) >>
1052 |  |  |  |  |
1053 |  |  |  |  | Given a value, this method returns true if the value is valid for the
1054 |  |  |  |  | attribute's type constraint. If the value is not valid, it throws an
1055 |  |  |  |  | error.
1056 |  |  |  |  |
1057 |  |  |  |  | =item B<< $attr->handles >>
1058 |  |  |  |  |
1059 |  |  |  |  | This returns the value of the C<handles> option passed to the
1060 |  |  |  |  | constructor.
1061 |  |  |  |  |
1062 |  |  |  |  | =item B<< $attr->has_handles >>
1063 |  |  |  |  |
1064 |  |  |  |  | Returns true if this attribute performs delegation.
1065 |  |  |  |  |
1066 |  |  |  |  | =item B<< $attr->is_weak_ref >>
1067 |  |  |  |  |
1068 |  |  |  |  | Returns true if this attribute stores its value as a weak reference.
1069 |  |  |  |  |
1070 |  |  |  |  | =item B<< $attr->is_required >>
1071 |  |  |  |  |
1072 |  |  |  |  | Returns true if this attribute is required to have a value.
1073 |  |  |  |  |
1074 |  |  |  |  | =item B<< $attr->is_lazy >>
1075 |  |  |  |  |
1076 |  |  |  |  | Returns true if this attribute is lazy.
1077 |  |  |  |  |
1078 |  |  |  |  | =item B<< $attr->is_lazy_build >>
1079 |  |  |  |  |
1080 |  |  |  |  | Returns true if the C<lazy_build> option was true when passed to the
1081 |  |  |  |  | constructor.
1082 |  |  |  |  |
1083 |  |  |  |  | =item B<< $attr->should_coerce >>
1084 |  |  |  |  |
1085 |  |  |  |  | Returns true if the C<coerce> option passed to the constructor was
1086 |  |  |  |  | true.
1087 |  |  |  |  |
1088 |  |  |  |  | =item B<< $attr->should_auto_deref >>
1089 |  |  |  |  |
1090 |  |  |  |  | Returns true if the C<auto_deref> option passed to the constructor was
1091 |  |  |  |  | true.
1092 |  |  |  |  |
1093 |  |  |  |  | =item B<< $attr->trigger >>
1094 |  |  |  |  |
1095 |  |  |  |  | This is the subroutine reference that was in the C<trigger> option
1096 |  |  |  |  | passed to the constructor, if any.
1097 |  |  |  |  |
1098 |  |  |  |  | =item B<< $attr->has_trigger >>
1099 |  |  |  |  |
1100 |  |  |  |  | Returns true if this attribute has a trigger set.
1101 |  |  |  |  |
1102 |  |  |  |  | =item B<< $attr->documentation >>
1103 |  |  |  |  |
1104 |  |  |  |  | Returns the value that was in the C<documentation> option passed to
1105 |  |  |  |  | the constructor, if any.
1106 |  |  |  |  |
1107 |  |  |  |  | =item B<< $attr->has_documentation >>
1108 |  |  |  |  |
1109 |  |  |  |  | Returns true if this attribute has any documentation.
1110 |  |  |  |  |
1111 |  |  |  |  | =item B<< $attr->applied_traits >>
1112 |  |  |  |  |
1113 |  |  |  |  | This returns an array reference of all the traits which were applied
1114 |  |  |  |  | to this attribute. If none were applied, this returns C<undef>.
1115 |  |  |  |  |
1116 |  |  |  |  | =item B<< $attr->has_applied_traits >>
1117 |  |  |  |  |
1118 |  |  |  |  | Returns true if this attribute has any traits applied.
1119 |  |  |  |  |
1120 |  |  |  |  | =back
1121 |  |  |  |  |
1122 |  |  |  |  | =head1 BUGS
1123 |  |  |  |  |
1124 |  |  |  |  | See L<Moose/BUGS> for details on reporting bugs.
1125 |  |  |  |  |
1126 |  |  |  |  | =head1 AUTHOR
1127 |  |  |  |  |
1128 |  |  |  |  | Stevan Little E<lt>stevan@iinteractive.comE<gt>
1129 |  |  |  |  |
1130 |  |  |  |  | Yuval Kogman E<lt>nothingmuch@woobling.comE<gt>
1131 |  |  |  |  |
1132 |  |  |  |  | =head1 COPYRIGHT AND LICENSE
1133 |  |  |  |  |
1134 |  |  |  |  | Copyright 2006-2010 by Infinity Interactive, Inc.
1135 |  |  |  |  |
1136 |  |  |  |  | L<http://www.iinteractive.com>
1137 |  |  |  |  |
1138 |  |  |  |  | This library is free software; you can redistribute it and/or modify
1139 |  |  |  |  | it under the same terms as Perl itself.
1140 |  |  |  |  |
1141 |  |  |  |  | =cut
|  |  |  |  | # spent 9µs within Moose::Meta::Attribute::CORE:sort which was called 5 times, avg 2µs/call: # 5 times (9µs+0s) by Moose::Meta::Attribute::new at line 63 of Moose/Meta/Attribute.pm, avg 2µs/call sub Moose::Meta::Attribute::CORE:sort; # xsub