| Filename | /2home/ss5/perl5/perlbrew/perls/perl-5.12.3/lib/site_perl/5.12.3/x86_64-linux/Class/MOP/Instance.pm |
| Statements | Executed 4480 statements in 12.7ms |
| Calls | P | F | Exclusive Time |
Inclusive Time |
Subroutine |
|---|---|---|---|---|---|
| 58 | 1 | 1 | 3.27ms | 3.45ms | Class::MOP::Instance::create_instance |
| 56 | 1 | 1 | 1.82ms | 3.17ms | Class::MOP::Instance::BUILDARGS |
| 403 | 1 | 1 | 1.61ms | 2.47ms | Class::MOP::Instance::inline_set_slot_value |
| 506 | 4 | 1 | 1.15ms | 1.15ms | Class::MOP::Instance::inline_slot_access |
| 376 | 1 | 1 | 998µs | 998µs | Class::MOP::Instance::set_slot_value |
| 56 | 1 | 1 | 667µs | 4.44ms | Class::MOP::Instance::new |
| 47 | 1 | 1 | 376µs | 376µs | Class::MOP::Instance::_new |
| 84 | 1 | 1 | 340µs | 572µs | Class::MOP::Instance::inline_get_slot_value |
| 103 | 2 | 2 | 106µs | 106µs | Class::MOP::Instance::is_inlinable |
| 17 | 1 | 1 | 80µs | 125µs | Class::MOP::Instance::inline_is_slot_initialized |
| 56 | 1 | 1 | 72µs | 72µs | Class::MOP::Instance::is_dependent_on_superclasses |
| 30 | 1 | 1 | 71µs | 71µs | Class::MOP::Instance::inline_create_instance |
| 12 | 1 | 1 | 25µs | 25µs | Class::MOP::Instance::is_slot_initialized |
| 12 | 1 | 1 | 23µs | 23µs | Class::MOP::Instance::get_slot_value |
| 2 | 1 | 1 | 12µs | 16µs | Class::MOP::Instance::inline_weaken_slot_value |
| 1 | 1 | 1 | 8µs | 8µs | Class::MOP::Instance::BEGIN@3 |
| 1 | 1 | 1 | 8µs | 51µs | Class::MOP::Instance::BEGIN@13 |
| 1 | 1 | 1 | 6µs | 69µs | Class::MOP::Instance::BEGIN@15 |
| 1 | 1 | 1 | 6µs | 8µs | Class::MOP::Instance::BEGIN@10 |
| 1 | 1 | 1 | 6µs | 14µs | Class::MOP::Instance::BEGIN@11 |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::_clear_mop_slot |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::_get_mop_slot |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::_has_mop_slot |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::_inline_clear_mop_slot |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::_inline_get_mop_slot |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::_inline_set_mop_slot |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::_set_mop_slot |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::clone_instance |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::deinitialize_all_slots |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::deinitialize_slot |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::get_all_attributes |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::get_all_slots |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::initialize_all_slots |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::initialize_slot |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::inline_deinitialize_slot |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::inline_get_is_lvalue |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::inline_initialize_slot |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::inline_rebless_instance_structure |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::inline_strengthen_slot_value |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::is_valid_slot |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::rebless_instance_structure |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::slot_value_is_weak |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::strengthen_slot_value |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::Instance::weaken_slot_value |
| Line | State ments |
Time on line |
Calls | Time in subs |
Code |
|---|---|---|---|---|---|
| 1 | |||||
| 2 | package Class::MOP::Instance; | ||||
| 3 | # spent 8µs within Class::MOP::Instance::BEGIN@3 which was called:
# once (8µs+0s) by Class::MOP::Class::BEGIN@13 at line 5 | ||||
| 4 | 1 | 7µs | $Class::MOP::Instance::AUTHORITY = 'cpan:STEVAN'; | ||
| 5 | 1 | 22µs | 1 | 8µs | } # spent 8µs making 1 call to Class::MOP::Instance::BEGIN@3 |
| 6 | { | ||||
| 7 | 2 | 1µs | $Class::MOP::Instance::VERSION = '2.0602'; | ||
| 8 | } | ||||
| 9 | |||||
| 10 | 3 | 15µs | 2 | 10µs | # spent 8µs (6+2) within Class::MOP::Instance::BEGIN@10 which was called:
# once (6µs+2µs) by Class::MOP::Class::BEGIN@13 at line 10 # spent 8µs making 1 call to Class::MOP::Instance::BEGIN@10
# spent 2µs making 1 call to strict::import |
| 11 | 3 | 19µs | 2 | 22µs | # spent 14µs (6+8) within Class::MOP::Instance::BEGIN@11 which was called:
# once (6µs+8µs) by Class::MOP::Class::BEGIN@13 at line 11 # spent 14µs making 1 call to Class::MOP::Instance::BEGIN@11
# spent 8µs making 1 call to warnings::import |
| 12 | |||||
| 13 | 3 | 20µs | 2 | 95µs | # spent 51µs (8+44) within Class::MOP::Instance::BEGIN@13 which was called:
# once (8µs+44µs) by Class::MOP::Class::BEGIN@13 at line 13 # spent 51µs making 1 call to Class::MOP::Instance::BEGIN@13
# spent 44µs making 1 call to Exporter::import |
| 14 | |||||
| 15 | 3 | 1.17ms | 2 | 131µs | # spent 69µs (6+62) within Class::MOP::Instance::BEGIN@15 which was called:
# once (6µs+62µs) by Class::MOP::Class::BEGIN@13 at line 15 # spent 69µs making 1 call to Class::MOP::Instance::BEGIN@15
# spent 62µs making 1 call to base::import |
| 16 | |||||
| 17 | # make this not a valid method name, to avoid (most) attribute conflicts | ||||
| 18 | 1 | 400ns | my $RESERVED_MOP_SLOT = '<<MOP>>'; | ||
| 19 | |||||
| 20 | # spent 3.17ms (1.82+1.35) within Class::MOP::Instance::BUILDARGS which was called 56 times, avg 57µs/call:
# 56 times (1.82ms+1.35ms) by Class::MOP::Instance::new at line 41, avg 57µs/call | ||||
| 21 | 336 | 1.15ms | my ($class, @args) = @_; | ||
| 22 | |||||
| 23 | 56 | 42µs | if ( @args == 1 ) { # spent 42µs making 56 calls to Scalar::Util::blessed, avg 746ns/call | ||
| 24 | unshift @args, "associated_metaclass"; | ||||
| 25 | } elsif ( @args >= 2 && blessed($args[0]) && $args[0]->isa("Class::MOP::Class") ) { | ||||
| 26 | # compat mode | ||||
| 27 | my ( $meta, @attrs ) = @args; | ||||
| 28 | @args = ( associated_metaclass => $meta, attributes => \@attrs ); | ||||
| 29 | } | ||||
| 30 | |||||
| 31 | my %options = @args; | ||||
| 32 | # FIXME lazy_build | ||||
| 33 | 442 | 465µs | 442 | 1.31ms | $options{slots} ||= [ map { $_->slots } @{ $options{attributes} || [] } ]; # spent 1.31ms making 442 calls to Class::MOP::Attribute::slots, avg 3µs/call |
| 34 | $options{slot_hash} = { map { $_ => undef } @{ $options{slots} } }; # FIXME lazy_build | ||||
| 35 | |||||
| 36 | return \%options; | ||||
| 37 | } | ||||
| 38 | |||||
| 39 | # spent 4.44ms (667µs+3.78) within Class::MOP::Instance::new which was called 56 times, avg 79µs/call:
# 56 times (667µs+3.78ms) by Class::MOP::Class::_create_meta_instance at line 726 of Class/MOP/Class.pm, avg 79µs/call | ||||
| 40 | 280 | 673µs | my $class = shift; | ||
| 41 | 56 | 3.17ms | my $options = $class->BUILDARGS(@_); # spent 3.17ms making 56 calls to Class::MOP::Instance::BUILDARGS, avg 57µs/call | ||
| 42 | |||||
| 43 | # FIXME replace with a proper constructor | ||||
| 44 | 56 | 545µs | my $instance = $class->_new(%$options); # spent 376µs making 47 calls to Class::MOP::Instance::_new, avg 8µs/call
# spent 168µs making 9 calls to Moose::Meta::Instance::_new, avg 19µs/call | ||
| 45 | |||||
| 46 | # FIXME weak_ref => 1, | ||||
| 47 | 56 | 61µs | weaken($instance->{'associated_metaclass'}); # spent 61µs making 56 calls to Scalar::Util::weaken, avg 1µs/call | ||
| 48 | |||||
| 49 | return $instance; | ||||
| 50 | } | ||||
| 51 | |||||
| 52 | # spent 376µs within Class::MOP::Instance::_new which was called 47 times, avg 8µs/call:
# 47 times (376µs+0s) by Class::MOP::Instance::new at line 44, avg 8µs/call | ||||
| 53 | 188 | 409µs | my $class = shift; | ||
| 54 | return Class::MOP::Class->initialize($class)->new_object(@_) | ||||
| 55 | if $class ne __PACKAGE__; | ||||
| 56 | |||||
| 57 | my $params = @_ == 1 ? $_[0] : {@_}; | ||||
| 58 | return bless { | ||||
| 59 | # NOTE: | ||||
| 60 | # I am not sure that it makes | ||||
| 61 | # sense to pass in the meta | ||||
| 62 | # The ideal would be to just | ||||
| 63 | # pass in the class name, but | ||||
| 64 | # that is placing too much of | ||||
| 65 | # an assumption on bless(), | ||||
| 66 | # which is *probably* a safe | ||||
| 67 | # assumption,.. but you can | ||||
| 68 | # never tell <:) | ||||
| 69 | 'associated_metaclass' => $params->{associated_metaclass}, | ||||
| 70 | 'attributes' => $params->{attributes}, | ||||
| 71 | 'slots' => $params->{slots}, | ||||
| 72 | 'slot_hash' => $params->{slot_hash}, | ||||
| 73 | } => $class; | ||||
| 74 | } | ||||
| 75 | |||||
| 76 | 58 | 241µs | 18 | 15µs | sub _class_name { $_[0]->{_class_name} ||= $_[0]->associated_metaclass->name } # spent 10µs making 9 calls to Class::MOP::Instance::associated_metaclass, avg 1µs/call
# spent 5µs making 9 calls to Class::MOP::Package::name, avg 567ns/call |
| 77 | |||||
| 78 | # spent 3.45ms (3.27+183µs) within Class::MOP::Instance::create_instance which was called 58 times, avg 60µs/call:
# 58 times (3.27ms+183µs) by Class::MOP::Class::_construct_instance at line 522 of Class/MOP/Class.pm, avg 60µs/call | ||||
| 79 | 116 | 3.25ms | my $self = shift; | ||
| 80 | 58 | 182µs | bless {}, $self->_class_name; # spent 182µs making 58 calls to Class::MOP::Instance::_class_name, avg 3µs/call | ||
| 81 | } | ||||
| 82 | |||||
| 83 | sub clone_instance { | ||||
| 84 | my ($self, $instance) = @_; | ||||
| 85 | |||||
| 86 | my $clone = $self->create_instance; | ||||
| 87 | for my $attr ($self->get_all_attributes) { | ||||
| 88 | next unless $attr->has_value($instance); | ||||
| 89 | for my $slot ($attr->slots) { | ||||
| 90 | my $val = $self->get_slot_value($instance, $slot); | ||||
| 91 | $self->set_slot_value($clone, $slot, $val); | ||||
| 92 | $self->weaken_slot_value($clone, $slot) | ||||
| 93 | if $self->slot_value_is_weak($instance, $slot); | ||||
| 94 | } | ||||
| 95 | } | ||||
| 96 | |||||
| 97 | $self->_set_mop_slot($clone, $self->_get_mop_slot($instance)) | ||||
| 98 | if $self->_has_mop_slot($instance); | ||||
| 99 | |||||
| 100 | return $clone; | ||||
| 101 | } | ||||
| 102 | |||||
| 103 | # operations on meta instance | ||||
| 104 | |||||
| 105 | sub get_all_slots { | ||||
| 106 | my $self = shift; | ||||
| 107 | return @{$self->{'slots'}}; | ||||
| 108 | } | ||||
| 109 | |||||
| 110 | sub get_all_attributes { | ||||
| 111 | my $self = shift; | ||||
| 112 | return @{$self->{attributes}}; | ||||
| 113 | } | ||||
| 114 | |||||
| 115 | sub is_valid_slot { | ||||
| 116 | my ($self, $slot_name) = @_; | ||||
| 117 | exists $self->{'slot_hash'}->{$slot_name}; | ||||
| 118 | } | ||||
| 119 | |||||
| 120 | # operations on created instances | ||||
| 121 | |||||
| 122 | # spent 23µs within Class::MOP::Instance::get_slot_value which was called 12 times, avg 2µs/call:
# 12 times (23µs+0s) by Class::MOP::Attribute::get_raw_value at line 298 of Class/MOP/Attribute.pm, avg 2µs/call | ||||
| 123 | 24 | 31µs | my ($self, $instance, $slot_name) = @_; | ||
| 124 | $instance->{$slot_name}; | ||||
| 125 | } | ||||
| 126 | |||||
| 127 | # spent 998µs within Class::MOP::Instance::set_slot_value which was called 376 times, avg 3µs/call:
# 376 times (998µs+0s) by Class::MOP::Attribute::_set_initial_slot_value at line 150 of Class/MOP/Attribute.pm, avg 3µs/call | ||||
| 128 | 752 | 1.34ms | my ($self, $instance, $slot_name, $value) = @_; | ||
| 129 | $instance->{$slot_name} = $value; | ||||
| 130 | } | ||||
| 131 | |||||
| 132 | sub initialize_slot { | ||||
| 133 | my ($self, $instance, $slot_name) = @_; | ||||
| 134 | return; | ||||
| 135 | } | ||||
| 136 | |||||
| 137 | sub deinitialize_slot { | ||||
| 138 | my ( $self, $instance, $slot_name ) = @_; | ||||
| 139 | delete $instance->{$slot_name}; | ||||
| 140 | } | ||||
| 141 | |||||
| 142 | sub initialize_all_slots { | ||||
| 143 | my ($self, $instance) = @_; | ||||
| 144 | foreach my $slot_name ($self->get_all_slots) { | ||||
| 145 | $self->initialize_slot($instance, $slot_name); | ||||
| 146 | } | ||||
| 147 | } | ||||
| 148 | |||||
| 149 | sub deinitialize_all_slots { | ||||
| 150 | my ($self, $instance) = @_; | ||||
| 151 | foreach my $slot_name ($self->get_all_slots) { | ||||
| 152 | $self->deinitialize_slot($instance, $slot_name); | ||||
| 153 | } | ||||
| 154 | } | ||||
| 155 | |||||
| 156 | # spent 25µs within Class::MOP::Instance::is_slot_initialized which was called 12 times, avg 2µs/call:
# 12 times (25µs+0s) by Class::MOP::Attribute::has_value at line 319 of Class/MOP/Attribute.pm, avg 2µs/call | ||||
| 157 | 24 | 34µs | my ($self, $instance, $slot_name, $value) = @_; | ||
| 158 | exists $instance->{$slot_name}; | ||||
| 159 | } | ||||
| 160 | |||||
| 161 | sub weaken_slot_value { | ||||
| 162 | my ($self, $instance, $slot_name) = @_; | ||||
| 163 | weaken $instance->{$slot_name}; | ||||
| 164 | } | ||||
| 165 | |||||
| 166 | sub slot_value_is_weak { | ||||
| 167 | my ($self, $instance, $slot_name) = @_; | ||||
| 168 | isweak $instance->{$slot_name}; | ||||
| 169 | } | ||||
| 170 | |||||
| 171 | sub strengthen_slot_value { | ||||
| 172 | my ($self, $instance, $slot_name) = @_; | ||||
| 173 | $self->set_slot_value($instance, $slot_name, $self->get_slot_value($instance, $slot_name)); | ||||
| 174 | } | ||||
| 175 | |||||
| 176 | sub rebless_instance_structure { | ||||
| 177 | my ($self, $instance, $metaclass) = @_; | ||||
| 178 | |||||
| 179 | # we use $_[1] here because of t/cmop/rebless_overload.t regressions | ||||
| 180 | # on 5.8.8 | ||||
| 181 | bless $_[1], $metaclass->name; | ||||
| 182 | } | ||||
| 183 | |||||
| 184 | # spent 72µs within Class::MOP::Instance::is_dependent_on_superclasses which was called 56 times, avg 1µs/call:
# 56 times (72µs+0s) by Class::MOP::Class::_create_meta_instance at line 731 of Class/MOP/Class.pm, avg 1µs/call | ||||
| 185 | 56 | 109µs | return; # for meta instances that require updates on inherited slot changes | ||
| 186 | } | ||||
| 187 | |||||
| 188 | sub _get_mop_slot { | ||||
| 189 | my ($self, $instance) = @_; | ||||
| 190 | $self->get_slot_value($instance, $RESERVED_MOP_SLOT); | ||||
| 191 | } | ||||
| 192 | |||||
| 193 | sub _has_mop_slot { | ||||
| 194 | my ($self, $instance) = @_; | ||||
| 195 | $self->is_slot_initialized($instance, $RESERVED_MOP_SLOT); | ||||
| 196 | } | ||||
| 197 | |||||
| 198 | sub _set_mop_slot { | ||||
| 199 | my ($self, $instance, $value) = @_; | ||||
| 200 | $self->set_slot_value($instance, $RESERVED_MOP_SLOT, $value); | ||||
| 201 | } | ||||
| 202 | |||||
| 203 | sub _clear_mop_slot { | ||||
| 204 | my ($self, $instance) = @_; | ||||
| 205 | $self->deinitialize_slot($instance, $RESERVED_MOP_SLOT); | ||||
| 206 | } | ||||
| 207 | |||||
| 208 | # inlinable operation snippets | ||||
| 209 | |||||
| 210 | 103 | 185µs | # spent 106µs within Class::MOP::Instance::is_inlinable which was called 103 times, avg 1µs/call:
# 95 times (94µs+0s) by Class::MOP::Attribute::_process_accessors at line 384 of Class/MOP/Attribute.pm, avg 992ns/call
# 8 times (12µs+0s) by Moose::Meta::Method::Accessor::_instance_is_inlinable at line 57 of Moose/Meta/Method/Accessor.pm, avg 1µs/call | ||
| 211 | |||||
| 212 | # spent 71µs within Class::MOP::Instance::inline_create_instance which was called 30 times, avg 2µs/call:
# 30 times (71µs+0s) by Class::MOP::Class::_inline_create_instance at line 583 of Class/MOP/Class.pm, avg 2µs/call | ||||
| 213 | 60 | 99µs | my ($self, $class_variable) = @_; | ||
| 214 | 'bless {} => ' . $class_variable; | ||||
| 215 | } | ||||
| 216 | |||||
| 217 | # spent 1.15ms within Class::MOP::Instance::inline_slot_access which was called 506 times, avg 2µs/call:
# 403 times (868µs+0s) by Class::MOP::Instance::inline_set_slot_value at line 231, avg 2µs/call
# 84 times (231µs+0s) by Class::MOP::Instance::inline_get_slot_value at line 226, avg 3µs/call
# 17 times (44µs+0s) by Class::MOP::Instance::inline_is_slot_initialized at line 245, avg 3µs/call
# 2 times (4µs+0s) by Class::MOP::Instance::inline_weaken_slot_value at line 250, avg 2µs/call | ||||
| 218 | 1012 | 1.67ms | my ($self, $instance, $slot_name) = @_; | ||
| 219 | sprintf q[%s->{"%s"}], $instance, quotemeta($slot_name); | ||||
| 220 | } | ||||
| 221 | |||||
| 222 | sub inline_get_is_lvalue { 1 } | ||||
| 223 | |||||
| 224 | # spent 572µs (340+231) within Class::MOP::Instance::inline_get_slot_value which was called 84 times, avg 7µs/call:
# 84 times (340µs+231µs) by Class::MOP::Attribute::_inline_instance_get at line 311 of Class/MOP/Attribute.pm, avg 7µs/call | ||||
| 225 | 168 | 292µs | my ($self, $instance, $slot_name) = @_; | ||
| 226 | 84 | 231µs | $self->inline_slot_access($instance, $slot_name); # spent 231µs making 84 calls to Class::MOP::Instance::inline_slot_access, avg 3µs/call | ||
| 227 | } | ||||
| 228 | |||||
| 229 | # spent 2.47ms (1.61+868µs) within Class::MOP::Instance::inline_set_slot_value which was called 403 times, avg 6µs/call:
# 403 times (1.61ms+868µs) by Class::MOP::Attribute::_inline_instance_set at line 288 of Class/MOP/Attribute.pm, avg 6µs/call | ||||
| 230 | 806 | 1.42ms | my ($self, $instance, $slot_name, $value) = @_; | ||
| 231 | 403 | 868µs | $self->inline_slot_access($instance, $slot_name) . " = $value", # spent 868µs making 403 calls to Class::MOP::Instance::inline_slot_access, avg 2µs/call | ||
| 232 | } | ||||
| 233 | |||||
| 234 | sub inline_initialize_slot { | ||||
| 235 | my ($self, $instance, $slot_name) = @_; | ||||
| 236 | return ''; | ||||
| 237 | } | ||||
| 238 | |||||
| 239 | sub inline_deinitialize_slot { | ||||
| 240 | my ($self, $instance, $slot_name) = @_; | ||||
| 241 | "delete " . $self->inline_slot_access($instance, $slot_name); | ||||
| 242 | } | ||||
| 243 | # spent 125µs (80+44) within Class::MOP::Instance::inline_is_slot_initialized which was called 17 times, avg 7µs/call:
# 17 times (80µs+44µs) by Class::MOP::Attribute::_inline_instance_has at line 332 of Class/MOP/Attribute.pm, avg 7µs/call | ||||
| 244 | 34 | 78µs | my ($self, $instance, $slot_name) = @_; | ||
| 245 | 17 | 44µs | "exists " . $self->inline_slot_access($instance, $slot_name); # spent 44µs making 17 calls to Class::MOP::Instance::inline_slot_access, avg 3µs/call | ||
| 246 | } | ||||
| 247 | |||||
| 248 | # spent 16µs (12+4) within Class::MOP::Instance::inline_weaken_slot_value which was called 2 times, avg 8µs/call:
# 2 times (12µs+4µs) by Moose::Meta::Attribute::_inline_weaken_value at line 758 of Moose/Meta/Attribute.pm, avg 8µs/call | ||||
| 249 | 4 | 10µs | my ($self, $instance, $slot_name) = @_; | ||
| 250 | 2 | 4µs | sprintf "Scalar::Util::weaken( %s )", $self->inline_slot_access($instance, $slot_name); # spent 4µs making 2 calls to Class::MOP::Instance::inline_slot_access, avg 2µs/call | ||
| 251 | } | ||||
| 252 | |||||
| 253 | sub inline_strengthen_slot_value { | ||||
| 254 | my ($self, $instance, $slot_name) = @_; | ||||
| 255 | $self->inline_set_slot_value($instance, $slot_name, $self->inline_slot_access($instance, $slot_name)); | ||||
| 256 | } | ||||
| 257 | |||||
| 258 | sub inline_rebless_instance_structure { | ||||
| 259 | my ($self, $instance, $class_variable) = @_; | ||||
| 260 | "bless $instance => $class_variable"; | ||||
| 261 | } | ||||
| 262 | |||||
| 263 | sub _inline_get_mop_slot { | ||||
| 264 | my ($self, $instance) = @_; | ||||
| 265 | $self->inline_get_slot_value($instance, $RESERVED_MOP_SLOT); | ||||
| 266 | } | ||||
| 267 | |||||
| 268 | sub _inline_set_mop_slot { | ||||
| 269 | my ($self, $instance, $value) = @_; | ||||
| 270 | $self->inline_set_slot_value($instance, $RESERVED_MOP_SLOT, $value); | ||||
| 271 | } | ||||
| 272 | |||||
| 273 | sub _inline_clear_mop_slot { | ||||
| 274 | my ($self, $instance) = @_; | ||||
| 275 | $self->inline_deinitialize_slot($instance, $RESERVED_MOP_SLOT); | ||||
| 276 | } | ||||
| 277 | |||||
| 278 | 1 | 3µs | 1; | ||
| 279 | |||||
| 280 | # ABSTRACT: Instance Meta Object | ||||
| 281 | |||||
| - - | |||||
| 284 | =pod | ||||
| 285 | |||||
| 286 | =head1 NAME | ||||
| 287 | |||||
| 288 | Class::MOP::Instance - Instance Meta Object | ||||
| 289 | |||||
| 290 | =head1 VERSION | ||||
| 291 | |||||
| 292 | version 2.0602 | ||||
| 293 | |||||
| 294 | =head1 DESCRIPTION | ||||
| 295 | |||||
| 296 | The Instance Protocol controls the creation of object instances, and | ||||
| 297 | the storage of attribute values in those instances. | ||||
| 298 | |||||
| 299 | Using this API directly in your own code violates encapsulation, and | ||||
| 300 | we recommend that you use the appropriate APIs in L<Class::MOP::Class> | ||||
| 301 | and L<Class::MOP::Attribute> instead. Those APIs in turn call the | ||||
| 302 | methods in this class as appropriate. | ||||
| 303 | |||||
| 304 | This class also participates in generating inlined code by providing | ||||
| 305 | snippets of code to access an object instance. | ||||
| 306 | |||||
| 307 | =head1 METHODS | ||||
| 308 | |||||
| 309 | =head2 Object construction | ||||
| 310 | |||||
| 311 | =over 4 | ||||
| 312 | |||||
| 313 | =item B<< Class::MOP::Instance->new(%options) >> | ||||
| 314 | |||||
| 315 | This method creates a new meta-instance object. | ||||
| 316 | |||||
| 317 | It accepts the following keys in C<%options>: | ||||
| 318 | |||||
| 319 | =over 8 | ||||
| 320 | |||||
| 321 | =item * associated_metaclass | ||||
| 322 | |||||
| 323 | The L<Class::MOP::Class> object for which instances will be created. | ||||
| 324 | |||||
| 325 | =item * attributes | ||||
| 326 | |||||
| 327 | An array reference of L<Class::MOP::Attribute> objects. These are the | ||||
| 328 | attributes which can be stored in each instance. | ||||
| 329 | |||||
| 330 | =back | ||||
| 331 | |||||
| 332 | =back | ||||
| 333 | |||||
| 334 | =head2 Creating and altering instances | ||||
| 335 | |||||
| 336 | =over 4 | ||||
| 337 | |||||
| 338 | =item B<< $metainstance->create_instance >> | ||||
| 339 | |||||
| 340 | This method returns a reference blessed into the associated | ||||
| 341 | metaclass's class. | ||||
| 342 | |||||
| 343 | The default is to use a hash reference. Subclasses can override this. | ||||
| 344 | |||||
| 345 | =item B<< $metainstance->clone_instance($instance) >> | ||||
| 346 | |||||
| 347 | Given an instance, this method creates a new object by making | ||||
| 348 | I<shallow> clone of the original. | ||||
| 349 | |||||
| 350 | =back | ||||
| 351 | |||||
| 352 | =head2 Introspection | ||||
| 353 | |||||
| 354 | =over 4 | ||||
| 355 | |||||
| 356 | =item B<< $metainstance->associated_metaclass >> | ||||
| 357 | |||||
| 358 | This returns the L<Class::MOP::Class> object associated with the | ||||
| 359 | meta-instance object. | ||||
| 360 | |||||
| 361 | =item B<< $metainstance->get_all_slots >> | ||||
| 362 | |||||
| 363 | This returns a list of slot names stored in object instances. In | ||||
| 364 | almost all cases, slot names correspond directly attribute names. | ||||
| 365 | |||||
| 366 | =item B<< $metainstance->is_valid_slot($slot_name) >> | ||||
| 367 | |||||
| 368 | This will return true if C<$slot_name> is a valid slot name. | ||||
| 369 | |||||
| 370 | =item B<< $metainstance->get_all_attributes >> | ||||
| 371 | |||||
| 372 | This returns a list of attributes corresponding to the attributes | ||||
| 373 | passed to the constructor. | ||||
| 374 | |||||
| 375 | =back | ||||
| 376 | |||||
| 377 | =head2 Operations on Instance Structures | ||||
| 378 | |||||
| 379 | It's important to understand that the meta-instance object is a | ||||
| 380 | different entity from the actual instances it creates. For this | ||||
| 381 | reason, any operations on the C<$instance_structure> always require | ||||
| 382 | that the object instance be passed to the method. | ||||
| 383 | |||||
| 384 | =over 4 | ||||
| 385 | |||||
| 386 | =item B<< $metainstance->get_slot_value($instance_structure, $slot_name) >> | ||||
| 387 | |||||
| 388 | =item B<< $metainstance->set_slot_value($instance_structure, $slot_name, $value) >> | ||||
| 389 | |||||
| 390 | =item B<< $metainstance->initialize_slot($instance_structure, $slot_name) >> | ||||
| 391 | |||||
| 392 | =item B<< $metainstance->deinitialize_slot($instance_structure, $slot_name) >> | ||||
| 393 | |||||
| 394 | =item B<< $metainstance->initialize_all_slots($instance_structure) >> | ||||
| 395 | |||||
| 396 | =item B<< $metainstance->deinitialize_all_slots($instance_structure) >> | ||||
| 397 | |||||
| 398 | =item B<< $metainstance->is_slot_initialized($instance_structure, $slot_name) >> | ||||
| 399 | |||||
| 400 | =item B<< $metainstance->weaken_slot_value($instance_structure, $slot_name) >> | ||||
| 401 | |||||
| 402 | =item B<< $metainstance->slot_value_is_weak($instance_structure, $slot_name) >> | ||||
| 403 | |||||
| 404 | =item B<< $metainstance->strengthen_slot_value($instance_structure, $slot_name) >> | ||||
| 405 | |||||
| 406 | =item B<< $metainstance->rebless_instance_structure($instance_structure, $new_metaclass) >> | ||||
| 407 | |||||
| 408 | The exact details of what each method does should be fairly obvious | ||||
| 409 | from the method name. | ||||
| 410 | |||||
| 411 | =back | ||||
| 412 | |||||
| 413 | =head2 Inlinable Instance Operations | ||||
| 414 | |||||
| 415 | =over 4 | ||||
| 416 | |||||
| 417 | =item B<< $metainstance->is_inlinable >> | ||||
| 418 | |||||
| 419 | This is a boolean that indicates whether or not slot access operations | ||||
| 420 | can be inlined. By default it is true, but subclasses can override | ||||
| 421 | this. | ||||
| 422 | |||||
| 423 | =item B<< $metainstance->inline_create_instance($class_variable) >> | ||||
| 424 | |||||
| 425 | This method expects a string that, I<when inlined>, will become a | ||||
| 426 | class name. This would literally be something like C<'$class'>, not an | ||||
| 427 | actual class name. | ||||
| 428 | |||||
| 429 | It returns a snippet of code that creates a new object for the | ||||
| 430 | class. This is something like C< bless {}, $class_name >. | ||||
| 431 | |||||
| 432 | =item B<< $metainstance->inline_get_is_lvalue >> | ||||
| 433 | |||||
| 434 | Returns whether or not C<inline_get_slot_value> is a valid lvalue. This can be | ||||
| 435 | used to do extra optimizations when generating inlined methods. | ||||
| 436 | |||||
| 437 | =item B<< $metainstance->inline_slot_access($instance_variable, $slot_name) >> | ||||
| 438 | |||||
| 439 | =item B<< $metainstance->inline_get_slot_value($instance_variable, $slot_name) >> | ||||
| 440 | |||||
| 441 | =item B<< $metainstance->inline_set_slot_value($instance_variable, $slot_name, $value) >> | ||||
| 442 | |||||
| 443 | =item B<< $metainstance->inline_initialize_slot($instance_variable, $slot_name) >> | ||||
| 444 | |||||
| 445 | =item B<< $metainstance->inline_deinitialize_slot($instance_variable, $slot_name) >> | ||||
| 446 | |||||
| 447 | =item B<< $metainstance->inline_is_slot_initialized($instance_variable, $slot_name) >> | ||||
| 448 | |||||
| 449 | =item B<< $metainstance->inline_weaken_slot_value($instance_variable, $slot_name) >> | ||||
| 450 | |||||
| 451 | =item B<< $metainstance->inline_strengthen_slot_value($instance_variable, $slot_name) >> | ||||
| 452 | |||||
| 453 | These methods all expect two arguments. The first is the name of a | ||||
| 454 | variable, than when inlined, will represent the object | ||||
| 455 | instance. Typically this will be a literal string like C<'$_[0]'>. | ||||
| 456 | |||||
| 457 | The second argument is a slot name. | ||||
| 458 | |||||
| 459 | The method returns a snippet of code that, when inlined, performs some | ||||
| 460 | operation on the instance. | ||||
| 461 | |||||
| 462 | =item B<< $metainstance->inline_rebless_instance_structure($instance_variable, $class_variable) >> | ||||
| 463 | |||||
| 464 | This takes the name of a variable that will, when inlined, represent the object | ||||
| 465 | instance, and the name of a variable that will represent the class to rebless | ||||
| 466 | into, and returns code to rebless an instance into a class. | ||||
| 467 | |||||
| 468 | =back | ||||
| 469 | |||||
| 470 | =head2 Introspection | ||||
| 471 | |||||
| 472 | =over 4 | ||||
| 473 | |||||
| 474 | =item B<< Class::MOP::Instance->meta >> | ||||
| 475 | |||||
| 476 | This will return a L<Class::MOP::Class> instance for this class. | ||||
| 477 | |||||
| 478 | It should also be noted that L<Class::MOP> will actually bootstrap | ||||
| 479 | this module by installing a number of attribute meta-objects into its | ||||
| 480 | metaclass. | ||||
| 481 | |||||
| 482 | =back | ||||
| 483 | |||||
| 484 | =head1 AUTHOR | ||||
| 485 | |||||
| 486 | Moose is maintained by the Moose Cabal, along with the help of many contributors. See L<Moose/CABAL> and L<Moose/CONTRIBUTORS> for details. | ||||
| 487 | |||||
| 488 | =head1 COPYRIGHT AND LICENSE | ||||
| 489 | |||||
| 490 | This software is copyright (c) 2012 by Infinity Interactive, Inc.. | ||||
| 491 | |||||
| 492 | This is free software; you can redistribute it and/or modify it under | ||||
| 493 | the same terms as the Perl 5 programming language system itself. | ||||
| 494 | |||||
| 495 | =cut | ||||
| 496 | |||||
| 497 | |||||
| 498 | __END__ |