| File | /usr/local/lib/perl/5.10.0/Class/MOP.pm |
| Statements Executed | 3200 |
| Total Time | 0.0143105 seconds |
| Calls | P | F | Exclusive Time |
Inclusive Time |
Subroutine |
|---|---|---|---|---|---|
| 1591 | 7 | 4 | 6.61ms | 6.61ms | Class::MOP::get_metaclass_by_name |
| 574 | 3 | 3 | 2.35ms | 2.35ms | Class::MOP::get_code_info(xsub) |
| 4 | 1 | 1 | 1.96ms | 25.4ms | Class::MOP::__ANON__[:117] |
| 71 | 1 | 1 | 1.30ms | 29.4ms | Class::MOP::load_first_existing_class |
| 73 | 2 | 2 | 987µs | 987µs | Class::MOP::_is_valid_class_name |
| 130 | 2 | 3 | 924µs | 924µs | Class::MOP::is_class_loaded(xsub) |
| 71 | 5 | 4 | 550µs | 29.9ms | Class::MOP::load_class |
| 73 | 2 | 2 | 450µs | 450µs | Class::MOP::store_metaclass_by_name |
| 37 | 4 | 4 | 289µs | 386µs | Class::MOP::class_of |
| 8 | 1 | 1 | 60µs | 60µs | Class::MOP::__ANON__[:233] |
| 8 | 1 | 1 | 58µs | 58µs | Class::MOP::__ANON__[:320] |
| 9 | 2 | 2 | 53µs | 53µs | Class::MOP::__ANON__[:509] |
| 8 | 1 | 1 | 53µs | 53µs | Class::MOP::__ANON__[:301] |
| 4 | 1 | 1 | 51µs | 51µs | Class::MOP::_class_to_pmfile |
| 8 | 1 | 1 | 45µs | 45µs | Class::MOP::__ANON__[:191] |
| 8 | 1 | 1 | 43µs | 43µs | Class::MOP::__ANON__[:336] |
| 8 | 1 | 1 | 41µs | 41µs | Class::MOP::__ANON__[:275] |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::BEGIN |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::__ANON__[:124] |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::__ANON__[:516] |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::__ANON__[:614] |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::does_metaclass_exist |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::get_all_metaclass_instances |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::get_all_metaclass_names |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::get_all_metaclasses |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::remove_metaclass_by_name |
| 0 | 0 | 0 | 0s | 0s | Class::MOP::weaken_metaclass |
| Line | Stmts. | Exclusive Time | Avg. | Code |
|---|---|---|---|---|
| 1 | ||||
| 2 | package Class::MOP; | |||
| 3 | ||||
| 4 | 3 | 36µs | 12µs | use strict; # spent 7µs making 1 call to strict::import |
| 5 | 3 | 29µs | 10µs | use warnings; # spent 23µs making 1 call to warnings::import |
| 6 | ||||
| 7 | 3 | 41µs | 14µs | use 5.008; |
| 8 | ||||
| 9 | 3 | 111µs | 37µs | use MRO::Compat; # spent 4µs making 1 call to import |
| 10 | ||||
| 11 | 3 | 37µs | 12µs | use Carp 'confess'; # spent 63µs making 1 call to Exporter::import |
| 12 | 3 | 151µs | 50µs | use Scalar::Util 'weaken', 'reftype', 'blessed'; # spent 78µs making 1 call to Exporter::import |
| 13 | 3 | 117µs | 39µs | use Data::OptList; # spent 15µs making 1 call to Sub::Install::__ANON__[/usr/local/share/perl/5.10.0/Sub/Install.pm:284] |
| 14 | 3 | 127µs | 42µs | use Try::Tiny; # spent 58µs making 1 call to Exporter::import |
| 15 | ||||
| 16 | 3 | 115µs | 38µs | use Class::MOP::Mixin::AttributeCore; # spent 8µs making 1 call to import |
| 17 | 3 | 114µs | 38µs | use Class::MOP::Mixin::HasAttributes; # spent 4µs making 1 call to import |
| 18 | 3 | 117µs | 39µs | use Class::MOP::Mixin::HasMethods; # spent 6µs making 1 call to import |
| 19 | 3 | 123µs | 41µs | use Class::MOP::Class; # spent 6µs making 1 call to import |
| 20 | 3 | 132µs | 44µs | use Class::MOP::Attribute; # spent 7µs making 1 call to import |
| 21 | 3 | 80µs | 27µs | use Class::MOP::Method; # spent 3µs making 1 call to import |
| 22 | ||||
| 23 | BEGIN { | |||
| 24 | *IS_RUNNING_ON_5_10 = ($] < 5.009_005) | |||
| 25 | ? sub () { 0 } | |||
| 26 | 2 | 6µs | 3µs | : sub () { 1 }; |
| 27 | ||||
| 28 | # this is either part of core or set up appropriately by MRO::Compat | |||
| 29 | *check_package_cache_flag = \&mro::get_pkg_gen; | |||
| 30 | 1 | 2.86ms | 2.86ms | } |
| 31 | ||||
| 32 | 1 | 1µs | 1µs | our $VERSION = '1.09'; |
| 33 | 1 | 600ns | 600ns | our $XS_VERSION = $VERSION; |
| 34 | 1 | 29µs | 29µs | $VERSION = eval $VERSION; |
| 35 | 1 | 500ns | 500ns | our $AUTHORITY = 'cpan:STEVAN'; |
| 36 | ||||
| 37 | 1 | 800ns | 800ns | require XSLoader; |
| 38 | 1 | 349µs | 349µs | XSLoader::load( __PACKAGE__, $XS_VERSION ); # spent 347µs making 1 call to XSLoader::load |
| 39 | ||||
| 40 | { | |||
| 41 | # Metaclasses are singletons, so we cache them here. | |||
| 42 | # there is no need to worry about destruction though | |||
| 43 | # because they should die only when the program dies. | |||
| 44 | # After all, do package definitions even get reaped? | |||
| 45 | # Anonymous classes manage their own destruction. | |||
| 46 | 2 | 2µs | 750ns | my %METAS; |
| 47 | ||||
| 48 | sub get_all_metaclasses { %METAS } | |||
| 49 | sub get_all_metaclass_instances { values %METAS } | |||
| 50 | sub get_all_metaclass_names { keys %METAS } | |||
| 51 | 1591 | 3.37ms | 2µs | # spent 6.61ms within Class::MOP::get_metaclass_by_name which was called 1591 times, avg 4µs/call:
# 1415 times (5.99ms+0s) by Class::MOP::Class::initialize at line 45 of /usr/local/lib/perl/5.10.0/Class/MOP/Class.pm, avg 4µs/call
# 77 times (268µs+0s) by Class::MOP::Class::_single_metaclass_is_compatible at line 288 of /usr/local/lib/perl/5.10.0/Class/MOP/Class.pm, avg 3µs/call
# 71 times (240µs+0s) by Class::MOP::Class::_construct_class_instance at line 82 of /usr/local/lib/perl/5.10.0/Class/MOP/Class.pm, avg 3µs/call
# 11 times (44µs+0s) by Class::MOP::Class::_class_metaclass_is_compatible at line 258 of /usr/local/lib/perl/5.10.0/Class/MOP/Class.pm, avg 4µs/call
# 8 times (28µs+0s) by Moose::Meta::Class::initialize at line 68 of /usr/local/lib/perl/5.10.0/Moose/Meta/Class.pm, avg 3µs/call
# 7 times (33µs+0s) by Moose::init_meta at line 167 of /usr/local/lib/perl/5.10.0/Moose.pm, avg 5µs/call
# 2 times (12µs+0s) by Class::MOP::Package::initialize at line 30 of /usr/local/lib/perl/5.10.0/Class/MOP/Package.pm, avg 6µs/call |
| 52 | 73 | 231µs | 3µs | # spent 450µs within Class::MOP::store_metaclass_by_name which was called 73 times, avg 6µs/call:
# 71 times (438µs+0s) by Class::MOP::Class::_construct_class_instance at line 107 of /usr/local/lib/perl/5.10.0/Class/MOP/Class.pm, avg 6µs/call
# 2 times (11µs+0s) by Class::MOP::Package::initialize at line 37 of /usr/local/lib/perl/5.10.0/Class/MOP/Package.pm, avg 6µs/call |
| 53 | sub weaken_metaclass { weaken($METAS{$_[0]}) } | |||
| 54 | sub does_metaclass_exist { exists $METAS{$_[0]} && defined $METAS{$_[0]} } | |||
| 55 | sub remove_metaclass_by_name { delete $METAS{$_[0]}; return } | |||
| 56 | ||||
| 57 | # This handles instances as well as class names | |||
| 58 | # spent 386µs (289+97) within Class::MOP::class_of which was called 37 times, avg 10µs/call:
# 16 times (117µs+46µs) by Moose::Exporter::_make_wrapped_sub_with_meta or Moose::Exporter::__ANON__[/usr/local/lib/perl/5.10.0/Moose/Exporter.pm:292] or Moose::Exporter::__ANON__[/usr/local/lib/perl/5.10.0/Moose/Exporter.pm:284] at line 284 of /usr/local/lib/perl/5.10.0/Moose/Exporter.pm, avg 10µs/call
# 11 times (85µs+28µs) by Moose::Meta::Class::superclasses at line 283 of /usr/local/lib/perl/5.10.0/Moose/Meta/Class.pm, avg 10µs/call
# 9 times (78µs+16µs) at line 693 of /usr/local/lib/perl/5.10.0/Moose/Util/TypeConstraints.pm, avg 11µs/call
# once (9µs+7µs) by Class::MOP::Object::_new at line 22 of /usr/local/lib/perl/5.10.0/Class/MOP/Object.pm | |||
| 59 | 111 | 284µs | 3µs | return unless defined $_[0]; |
| 60 | my $class = blessed($_[0]) || $_[0]; # spent 97µs making 37 calls to Scalar::Util::blessed, avg 3µs/call | |||
| 61 | return $METAS{$class}; | |||
| 62 | } | |||
| 63 | ||||
| 64 | # NOTE: | |||
| 65 | # We only cache metaclasses, meaning instances of | |||
| 66 | # Class::MOP::Class. We do not cache instance of | |||
| 67 | # Class::MOP::Package or Class::MOP::Module. Mostly | |||
| 68 | # because I don't yet see a good reason to do so. | |||
| 69 | } | |||
| 70 | ||||
| 71 | # spent 51µs within Class::MOP::_class_to_pmfile which was called 4 times, avg 13µs/call:
# 4 times (51µs+0s) by Class::MOP::load_first_existing_class at line 110, avg 13µs/call | |||
| 72 | 16 | 39µs | 2µs | my $class = shift; |
| 73 | ||||
| 74 | my $file = $class . '.pm'; | |||
| 75 | $file =~ s{::}{/}g; | |||
| 76 | ||||
| 77 | return $file; | |||
| 78 | } | |||
| 79 | ||||
| 80 | # spent 29.4ms (1.30+28.1) within Class::MOP::load_first_existing_class which was called 71 times, avg 414µs/call:
# 71 times (1.30ms+28.1ms) by Class::MOP::load_class at line 136, avg 414µs/call | |||
| 81 | 355 | 622µs | 2µs | my $classes = Data::OptList::mkopt(\@_) # spent 1.46ms making 71 calls to Data::OptList::mkopt, avg 21µs/call |
| 82 | or return; | |||
| 83 | ||||
| 84 | foreach my $class (@{ $classes }) { | |||
| 85 | 142 | 465µs | 3µs | my $name = $class->[0]; |
| 86 | unless ( _is_valid_class_name($name) ) { # spent 953µs making 71 calls to Class::MOP::_is_valid_class_name, avg 13µs/call | |||
| 87 | my $display = defined($name) ? $name : 'undef'; | |||
| 88 | confess "Invalid class name ($display)"; | |||
| 89 | } | |||
| 90 | } | |||
| 91 | ||||
| 92 | my $found; | |||
| 93 | my %exceptions; | |||
| 94 | ||||
| 95 | for my $class (@{ $classes }) { | |||
| 96 | 150 | 285µs | 2µs | my ($name, $options) = @{ $class }; |
| 97 | ||||
| 98 | 71 | 802µs | 11µs | if ($options) { |
| 99 | return $name if is_class_loaded($name, $options); | |||
| 100 | if (is_class_loaded($name)) { | |||
| 101 | # we already know it's loaded and too old, but we call | |||
| 102 | # ->VERSION anyway to generate the exception for us | |||
| 103 | $name->VERSION($options->{-version}); | |||
| 104 | } | |||
| 105 | } | |||
| 106 | else { | |||
| 107 | return $name if is_class_loaded($name); # spent 517µs making 71 calls to Class::MOP::is_class_loaded, avg 7µs/call | |||
| 108 | } | |||
| 109 | ||||
| 110 | my $file = _class_to_pmfile($name); # spent 51µs making 4 calls to Class::MOP::_class_to_pmfile, avg 13µs/call | |||
| 111 | # spent 25.4ms (1.96+23.4) within Class::MOP::__ANON__[/usr/local/lib/perl/5.10.0/Class/MOP.pm:117] which was called 4 times, avg 6.34ms/call:
# 4 times (1.96ms+23.4ms) by Try::Tiny::try at line 71 of /usr/local/share/perl/5.10.0/Try/Tiny.pm, avg 6.34ms/call | |||
| 112 | 16 | 439µs | 27µs | local $SIG{__DIE__}; |
| 113 | require $file; | |||
| 114 | $name->VERSION($options->{-version}) | |||
| 115 | if defined $options->{-version}; | |||
| 116 | return 1; | |||
| 117 | } | |||
| 118 | catch { | |||
| 119 | unless (/^Can't locate \Q$file\E in \@INC/) { | |||
| 120 | confess "Couldn't load class ($name) because: $_"; | |||
| 121 | } | |||
| 122 | ||||
| 123 | return; | |||
| 124 | }; # spent 25.5ms making 4 calls to Try::Tiny::try, avg 6.36ms/call
# spent 40µs making 4 calls to Try::Tiny::catch, avg 10µs/call | |||
| 125 | } | |||
| 126 | ||||
| 127 | if ( @{ $classes } > 1 ) { | |||
| 128 | my @list = map { $_->[0] } @{ $classes }; | |||
| 129 | confess "Can't locate any of @list in \@INC (\@INC contains: @INC)."; | |||
| 130 | } else { | |||
| 131 | confess "Can't locate " . _class_to_pmfile($classes->[0]->[0]) . " in \@INC (\@INC contains: @INC)."; | |||
| 132 | } | |||
| 133 | } | |||
| 134 | ||||
| 135 | # spent 29.9ms (550µs+29.4) within Class::MOP::load_class which was called 71 times, avg 422µs/call:
# 38 times (263µs+2.12ms) by Class::MOP::Class::_inline_constructor at line 1296 of /usr/local/lib/perl/5.10.0/Class/MOP/Class.pm, avg 63µs/call
# 14 times (112µs+2.56ms) by Class::MOP::MiniTrait::apply at line 14 of /usr/local/lib/perl/5.10.0/Class/MOP/MiniTrait.pm, avg 191µs/call
# 11 times (102µs+24.4ms) by Moose::Meta::Class::superclasses at line 282 of /usr/local/lib/perl/5.10.0/Moose/Meta/Class.pm, avg 2.22ms/call
# 7 times (66µs+269µs) by Class::MOP::Class::_inline_destructor at line 1328 of /usr/local/lib/perl/5.10.0/Class/MOP/Class.pm, avg 48µs/call
# once (8µs+64µs) by metaclass::import at line 29 of /usr/local/lib/perl/5.10.0/metaclass.pm | |||
| 136 | 142 | 437µs | 3µs | load_first_existing_class($_[0], ref $_[1] ? $_[1] : ()); # spent 29.8ms making 71 calls to Class::MOP::load_first_existing_class, avg 414µs/call, max recursion depth 1 |
| 137 | ||||
| 138 | # This is done to avoid breaking code which checked the return value. Said | |||
| 139 | # code is dumb. The return value was _always_ true, since it dies on | |||
| 140 | # failure! | |||
| 141 | return 1; | |||
| 142 | } | |||
| 143 | ||||
| 144 | # spent 987µs within Class::MOP::_is_valid_class_name which was called 73 times, avg 14µs/call:
# 71 times (953µs+0s) by Class::MOP::load_first_existing_class at line 86, avg 13µs/call
# 2 times (34µs+0s) by Class::MOP::Module::_instantiate_module at line 61 of /usr/local/lib/perl/5.10.0/Class/MOP/Module.pm, avg 17µs/call | |||
| 145 | 365 | 729µs | 2µs | my $class = shift; |
| 146 | ||||
| 147 | return 0 if ref($class); | |||
| 148 | return 0 unless defined($class); | |||
| 149 | return 0 unless length($class); | |||
| 150 | ||||
| 151 | return 1 if $class =~ /^\w+(?:::\w+)*$/; | |||
| 152 | ||||
| 153 | return 0; | |||
| 154 | } | |||
| 155 | ||||
| 156 | ## ---------------------------------------------------------------------------- | |||
| 157 | ## Setting up our environment ... | |||
| 158 | ## ---------------------------------------------------------------------------- | |||
| 159 | ## Class::MOP needs to have a few things in the global perl environment so | |||
| 160 | ## that it can operate effectively. Those things are done here. | |||
| 161 | ## ---------------------------------------------------------------------------- | |||
| 162 | ||||
| 163 | # ... nothing yet actually ;) | |||
| 164 | ||||
| 165 | ## ---------------------------------------------------------------------------- | |||
| 166 | ## Bootstrapping | |||
| 167 | ## ---------------------------------------------------------------------------- | |||
| 168 | ## The code below here is to bootstrap our MOP with itself. This is also | |||
| 169 | ## sometimes called "tying the knot". By doing this, we make it much easier | |||
| 170 | ## to extend the MOP through subclassing and such since now you can use the | |||
| 171 | ## MOP itself to extend itself. | |||
| 172 | ## | |||
| 173 | ## Yes, I know, thats weird and insane, but it's a good thing, trust me :) | |||
| 174 | ## ---------------------------------------------------------------------------- | |||
| 175 | ||||
| 176 | # We need to add in the meta-attributes here so that | |||
| 177 | # any subclass of Class::MOP::* will be able to | |||
| 178 | # inherit them using _construct_instance | |||
| 179 | ||||
| 180 | ## -------------------------------------------------------- | |||
| 181 | ## Class::MOP::Mixin::HasMethods | |||
| 182 | ||||
| 183 | Class::MOP::Mixin::HasMethods->meta->add_attribute( | |||
| 184 | Class::MOP::Attribute->new('_methods' => ( | |||
| 185 | reader => { | |||
| 186 | # NOTE: | |||
| 187 | # we just alias the original method | |||
| 188 | # rather than re-produce it here | |||
| 189 | '_full_method_map' => \&Class::MOP::Mixin::HasMethods::_full_method_map | |||
| 190 | }, | |||
| 191 | 8 | 12µs | 1µs | # spent 45µs within Class::MOP::__ANON__[/usr/local/lib/perl/5.10.0/Class/MOP.pm:191] which was called 8 times, avg 6µs/call:
# 8 times (45µs+0s) by Class::MOP::Mixin::AttributeCore::default at line 53 of /usr/local/lib/perl/5.10.0/Class/MOP/Mixin/AttributeCore.pm, avg 6µs/call |
| 192 | 1 | 38µs | 38µs | )) # spent 1.04ms making 1 call to Class::MOP::Mixin::meta
# spent 832µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 74µs making 1 call to Class::MOP::Attribute::new |
| 193 | ); | |||
| 194 | ||||
| 195 | 1 | 21µs | 21µs | Class::MOP::Mixin::HasMethods->meta->add_attribute( # spent 410µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 42µs making 1 call to Class::MOP::Attribute::new
# spent 24µs making 1 call to Class::MOP::Mixin::meta |
| 196 | Class::MOP::Attribute->new('method_metaclass' => ( | |||
| 197 | reader => { | |||
| 198 | # NOTE: | |||
| 199 | # we just alias the original method | |||
| 200 | # rather than re-produce it here | |||
| 201 | 'method_metaclass' => \&Class::MOP::Mixin::HasMethods::method_metaclass | |||
| 202 | }, | |||
| 203 | default => 'Class::MOP::Method', | |||
| 204 | )) | |||
| 205 | ); | |||
| 206 | ||||
| 207 | 1 | 17µs | 17µs | Class::MOP::Mixin::HasMethods->meta->add_attribute( # spent 368µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 35µs making 1 call to Class::MOP::Attribute::new
# spent 23µs making 1 call to Class::MOP::Mixin::meta |
| 208 | Class::MOP::Attribute->new('wrapped_method_metaclass' => ( | |||
| 209 | reader => { | |||
| 210 | # NOTE: | |||
| 211 | # we just alias the original method | |||
| 212 | # rather than re-produce it here | |||
| 213 | 'wrapped_method_metaclass' => \&Class::MOP::Mixin::HasMethods::wrapped_method_metaclass | |||
| 214 | }, | |||
| 215 | default => 'Class::MOP::Method::Wrapped', | |||
| 216 | )) | |||
| 217 | ); | |||
| 218 | ||||
| 219 | ## -------------------------------------------------------- | |||
| 220 | ## Class::MOP::Mixin::HasMethods | |||
| 221 | ||||
| 222 | Class::MOP::Mixin::HasAttributes->meta->add_attribute( | |||
| 223 | Class::MOP::Attribute->new('attributes' => ( | |||
| 224 | reader => { | |||
| 225 | # NOTE: we need to do this in order | |||
| 226 | # for the instance meta-object to | |||
| 227 | # not fall into meta-circular death | |||
| 228 | # | |||
| 229 | # we just alias the original method | |||
| 230 | # rather than re-produce it here | |||
| 231 | '_attribute_map' => \&Class::MOP::Mixin::HasAttributes::_attribute_map | |||
| 232 | }, | |||
| 233 | 8 | 11µs | 1µs | # spent 60µs within Class::MOP::__ANON__[/usr/local/lib/perl/5.10.0/Class/MOP.pm:233] which was called 8 times, avg 8µs/call:
# 8 times (60µs+0s) by Class::MOP::Mixin::AttributeCore::default at line 53 of /usr/local/lib/perl/5.10.0/Class/MOP/Mixin/AttributeCore.pm, avg 8µs/call |
| 234 | 1 | 24µs | 24µs | )) # spent 509µs making 1 call to Class::MOP::Mixin::meta
# spent 354µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 45µs making 1 call to Class::MOP::Attribute::new |
| 235 | ); | |||
| 236 | ||||
| 237 | 1 | 21µs | 21µs | Class::MOP::Mixin::HasAttributes->meta->add_attribute( # spent 335µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 41µs making 1 call to Class::MOP::Attribute::new
# spent 18µs making 1 call to Class::MOP::Mixin::meta |
| 238 | Class::MOP::Attribute->new('attribute_metaclass' => ( | |||
| 239 | reader => { | |||
| 240 | # NOTE: | |||
| 241 | # we just alias the original method | |||
| 242 | # rather than re-produce it here | |||
| 243 | 'attribute_metaclass' => \&Class::MOP::Mixin::HasAttributes::attribute_metaclass | |||
| 244 | }, | |||
| 245 | default => 'Class::MOP::Attribute', | |||
| 246 | )) | |||
| 247 | ); | |||
| 248 | ||||
| 249 | ## -------------------------------------------------------- | |||
| 250 | ## Class::MOP::Package | |||
| 251 | ||||
| 252 | 1 | 26µs | 26µs | Class::MOP::Package->meta->add_attribute( # spent 650µs making 1 call to Class::MOP::Object::meta
# spent 358µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 35µs making 1 call to Class::MOP::Attribute::new |
| 253 | Class::MOP::Attribute->new('package' => ( | |||
| 254 | reader => { | |||
| 255 | # NOTE: we need to do this in order | |||
| 256 | # for the instance meta-object to | |||
| 257 | # not fall into meta-circular death | |||
| 258 | # | |||
| 259 | # we just alias the original method | |||
| 260 | # rather than re-produce it here | |||
| 261 | 'name' => \&Class::MOP::Package::name | |||
| 262 | }, | |||
| 263 | )) | |||
| 264 | ); | |||
| 265 | ||||
| 266 | Class::MOP::Package->meta->add_attribute( | |||
| 267 | Class::MOP::Attribute->new('namespace' => ( | |||
| 268 | reader => { | |||
| 269 | # NOTE: | |||
| 270 | # we just alias the original method | |||
| 271 | # rather than re-produce it here | |||
| 272 | 'namespace' => \&Class::MOP::Package::namespace | |||
| 273 | }, | |||
| 274 | init_arg => undef, | |||
| 275 | 8 | 9µs | 1µs | # spent 41µs within Class::MOP::__ANON__[/usr/local/lib/perl/5.10.0/Class/MOP.pm:275] which was called 8 times, avg 5µs/call:
# 8 times (41µs+0s) by Class::MOP::Mixin::AttributeCore::default at line 53 of /usr/local/lib/perl/5.10.0/Class/MOP/Mixin/AttributeCore.pm, avg 5µs/call |
| 276 | 1 | 22µs | 22µs | )) # spent 381µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 43µs making 1 call to Class::MOP::Attribute::new
# spent 21µs making 1 call to Class::MOP::Object::meta |
| 277 | ); | |||
| 278 | ||||
| 279 | ## -------------------------------------------------------- | |||
| 280 | ## Class::MOP::Module | |||
| 281 | ||||
| 282 | # NOTE: | |||
| 283 | # yeah this is kind of stretching things a bit, | |||
| 284 | # but truthfully the version should be an attribute | |||
| 285 | # of the Module, the weirdness comes from having to | |||
| 286 | # stick to Perl 5 convention and store it in the | |||
| 287 | # $VERSION package variable. Basically if you just | |||
| 288 | # squint at it, it will look how you want it to look. | |||
| 289 | # Either as a package variable, or as a attribute of | |||
| 290 | # the metaclass, isn't abstraction great :) | |||
| 291 | ||||
| 292 | Class::MOP::Module->meta->add_attribute( | |||
| 293 | Class::MOP::Attribute->new('version' => ( | |||
| 294 | reader => { | |||
| 295 | # NOTE: | |||
| 296 | # we just alias the original method | |||
| 297 | # rather than re-produce it here | |||
| 298 | 'version' => \&Class::MOP::Module::version | |||
| 299 | }, | |||
| 300 | init_arg => undef, | |||
| 301 | 8 | 9µs | 1µs | # spent 53µs within Class::MOP::__ANON__[/usr/local/lib/perl/5.10.0/Class/MOP.pm:301] which was called 8 times, avg 7µs/call:
# 8 times (53µs+0s) by Class::MOP::Mixin::AttributeCore::default at line 53 of /usr/local/lib/perl/5.10.0/Class/MOP/Mixin/AttributeCore.pm, avg 7µs/call |
| 302 | 1 | 32µs | 32µs | )) # spent 527µs making 1 call to Class::MOP::Object::meta
# spent 369µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 49µs making 1 call to Class::MOP::Attribute::new |
| 303 | ); | |||
| 304 | ||||
| 305 | # NOTE: | |||
| 306 | # By following the same conventions as version here, | |||
| 307 | # we are opening up the possibility that people can | |||
| 308 | # use the $AUTHORITY in non-Class::MOP modules as | |||
| 309 | # well. | |||
| 310 | ||||
| 311 | Class::MOP::Module->meta->add_attribute( | |||
| 312 | Class::MOP::Attribute->new('authority' => ( | |||
| 313 | reader => { | |||
| 314 | # NOTE: | |||
| 315 | # we just alias the original method | |||
| 316 | # rather than re-produce it here | |||
| 317 | 'authority' => \&Class::MOP::Module::authority | |||
| 318 | }, | |||
| 319 | init_arg => undef, | |||
| 320 | 8 | 8µs | 1µs | # spent 58µs within Class::MOP::__ANON__[/usr/local/lib/perl/5.10.0/Class/MOP.pm:320] which was called 8 times, avg 7µs/call:
# 8 times (58µs+0s) by Class::MOP::Mixin::AttributeCore::default at line 53 of /usr/local/lib/perl/5.10.0/Class/MOP/Mixin/AttributeCore.pm, avg 7µs/call |
| 321 | 1 | 24µs | 24µs | )) # spent 342µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 41µs making 1 call to Class::MOP::Attribute::new
# spent 19µs making 1 call to Class::MOP::Object::meta |
| 322 | ); | |||
| 323 | ||||
| 324 | ## -------------------------------------------------------- | |||
| 325 | ## Class::MOP::Class | |||
| 326 | ||||
| 327 | Class::MOP::Class->meta->add_attribute( | |||
| 328 | Class::MOP::Attribute->new('superclasses' => ( | |||
| 329 | accessor => { | |||
| 330 | # NOTE: | |||
| 331 | # we just alias the original method | |||
| 332 | # rather than re-produce it here | |||
| 333 | 'superclasses' => \&Class::MOP::Class::superclasses | |||
| 334 | }, | |||
| 335 | init_arg => undef, | |||
| 336 | 8 | 12µs | 1µs | # spent 43µs within Class::MOP::__ANON__[/usr/local/lib/perl/5.10.0/Class/MOP.pm:336] which was called 8 times, avg 5µs/call:
# 8 times (43µs+0s) by Class::MOP::Mixin::AttributeCore::default at line 53 of /usr/local/lib/perl/5.10.0/Class/MOP/Mixin/AttributeCore.pm, avg 5µs/call |
| 337 | 1 | 29µs | 29µs | )) # spent 970µs making 1 call to Class::MOP::Object::meta
# spent 357µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 42µs making 1 call to Class::MOP::Attribute::new |
| 338 | ); | |||
| 339 | ||||
| 340 | 1 | 26µs | 26µs | Class::MOP::Class->meta->add_attribute( # spent 331µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 35µs making 1 call to Class::MOP::Attribute::new
# spent 19µs making 1 call to Class::MOP::Object::meta |
| 341 | Class::MOP::Attribute->new('instance_metaclass' => ( | |||
| 342 | reader => { | |||
| 343 | # NOTE: we need to do this in order | |||
| 344 | # for the instance meta-object to | |||
| 345 | # not fall into meta-circular death | |||
| 346 | # | |||
| 347 | # we just alias the original method | |||
| 348 | # rather than re-produce it here | |||
| 349 | 'instance_metaclass' => \&Class::MOP::Class::instance_metaclass | |||
| 350 | }, | |||
| 351 | default => 'Class::MOP::Instance', | |||
| 352 | )) | |||
| 353 | ); | |||
| 354 | ||||
| 355 | 1 | 20µs | 20µs | Class::MOP::Class->meta->add_attribute( # spent 314µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 29µs making 1 call to Class::MOP::Attribute::new
# spent 18µs making 1 call to Class::MOP::Object::meta |
| 356 | Class::MOP::Attribute->new('immutable_trait' => ( | |||
| 357 | reader => { | |||
| 358 | 'immutable_trait' => \&Class::MOP::Class::immutable_trait | |||
| 359 | }, | |||
| 360 | default => "Class::MOP::Class::Immutable::Trait", | |||
| 361 | )) | |||
| 362 | ); | |||
| 363 | ||||
| 364 | 1 | 28µs | 28µs | Class::MOP::Class->meta->add_attribute( # spent 349µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 38µs making 1 call to Class::MOP::Attribute::new
# spent 18µs making 1 call to Class::MOP::Object::meta |
| 365 | Class::MOP::Attribute->new('constructor_name' => ( | |||
| 366 | reader => { | |||
| 367 | 'constructor_name' => \&Class::MOP::Class::constructor_name, | |||
| 368 | }, | |||
| 369 | default => "new", | |||
| 370 | )) | |||
| 371 | ); | |||
| 372 | ||||
| 373 | 1 | 28µs | 28µs | Class::MOP::Class->meta->add_attribute( # spent 342µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 37µs making 1 call to Class::MOP::Attribute::new
# spent 26µs making 1 call to Class::MOP::Object::meta |
| 374 | Class::MOP::Attribute->new('constructor_class' => ( | |||
| 375 | reader => { | |||
| 376 | 'constructor_class' => \&Class::MOP::Class::constructor_class, | |||
| 377 | }, | |||
| 378 | default => "Class::MOP::Method::Constructor", | |||
| 379 | )) | |||
| 380 | ); | |||
| 381 | ||||
| 382 | ||||
| 383 | 1 | 26µs | 26µs | Class::MOP::Class->meta->add_attribute( # spent 314µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 30µs making 1 call to Class::MOP::Attribute::new
# spent 18µs making 1 call to Class::MOP::Object::meta |
| 384 | Class::MOP::Attribute->new('destructor_class' => ( | |||
| 385 | reader => { | |||
| 386 | 'destructor_class' => \&Class::MOP::Class::destructor_class, | |||
| 387 | }, | |||
| 388 | )) | |||
| 389 | ); | |||
| 390 | ||||
| 391 | # NOTE: | |||
| 392 | # we don't actually need to tie the knot with | |||
| 393 | # Class::MOP::Class here, it is actually handled | |||
| 394 | # within Class::MOP::Class itself in the | |||
| 395 | # _construct_class_instance method. | |||
| 396 | ||||
| 397 | ## -------------------------------------------------------- | |||
| 398 | ## Class::MOP::Mixin::AttributeCore | |||
| 399 | 1 | 38µs | 38µs | Class::MOP::Mixin::AttributeCore->meta->add_attribute( # spent 485µs making 1 call to Class::MOP::Mixin::meta
# spent 353µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 29µs making 1 call to Class::MOP::Attribute::new |
| 400 | Class::MOP::Attribute->new('name' => ( | |||
| 401 | reader => { | |||
| 402 | # NOTE: we need to do this in order | |||
| 403 | # for the instance meta-object to | |||
| 404 | # not fall into meta-circular death | |||
| 405 | # | |||
| 406 | # we just alias the original method | |||
| 407 | # rather than re-produce it here | |||
| 408 | 'name' => \&Class::MOP::Mixin::AttributeCore::name | |||
| 409 | } | |||
| 410 | )) | |||
| 411 | ); | |||
| 412 | ||||
| 413 | 1 | 22µs | 22µs | Class::MOP::Mixin::AttributeCore->meta->add_attribute( # spent 515µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 34µs making 1 call to Class::MOP::Attribute::new
# spent 19µs making 1 call to Class::MOP::Mixin::meta |
| 414 | Class::MOP::Attribute->new('accessor' => ( | |||
| 415 | reader => { 'accessor' => \&Class::MOP::Mixin::AttributeCore::accessor }, | |||
| 416 | predicate => { 'has_accessor' => \&Class::MOP::Mixin::AttributeCore::has_accessor }, | |||
| 417 | )) | |||
| 418 | ); | |||
| 419 | ||||
| 420 | 1 | 27µs | 27µs | Class::MOP::Mixin::AttributeCore->meta->add_attribute( # spent 493µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 28µs making 1 call to Class::MOP::Attribute::new
# spent 23µs making 1 call to Class::MOP::Mixin::meta |
| 421 | Class::MOP::Attribute->new('reader' => ( | |||
| 422 | reader => { 'reader' => \&Class::MOP::Mixin::AttributeCore::reader }, | |||
| 423 | predicate => { 'has_reader' => \&Class::MOP::Mixin::AttributeCore::has_reader }, | |||
| 424 | )) | |||
| 425 | ); | |||
| 426 | ||||
| 427 | 1 | 24µs | 24µs | Class::MOP::Mixin::AttributeCore->meta->add_attribute( # spent 479µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 29µs making 1 call to Class::MOP::Attribute::new
# spent 19µs making 1 call to Class::MOP::Mixin::meta |
| 428 | Class::MOP::Attribute->new('initializer' => ( | |||
| 429 | reader => { 'initializer' => \&Class::MOP::Mixin::AttributeCore::initializer }, | |||
| 430 | predicate => { 'has_initializer' => \&Class::MOP::Mixin::AttributeCore::has_initializer }, | |||
| 431 | )) | |||
| 432 | ); | |||
| 433 | ||||
| 434 | 1 | 26µs | 26µs | Class::MOP::Mixin::AttributeCore->meta->add_attribute( # spent 304µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 27µs making 1 call to Class::MOP::Attribute::new
# spent 18µs making 1 call to Class::MOP::Mixin::meta |
| 435 | Class::MOP::Attribute->new('definition_context' => ( | |||
| 436 | reader => { 'definition_context' => \&Class::MOP::Mixin::AttributeCore::definition_context }, | |||
| 437 | )) | |||
| 438 | ); | |||
| 439 | ||||
| 440 | 1 | 22µs | 22µs | Class::MOP::Mixin::AttributeCore->meta->add_attribute( # spent 520µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 28µs making 1 call to Class::MOP::Attribute::new
# spent 18µs making 1 call to Class::MOP::Mixin::meta |
| 441 | Class::MOP::Attribute->new('writer' => ( | |||
| 442 | reader => { 'writer' => \&Class::MOP::Mixin::AttributeCore::writer }, | |||
| 443 | predicate => { 'has_writer' => \&Class::MOP::Mixin::AttributeCore::has_writer }, | |||
| 444 | )) | |||
| 445 | ); | |||
| 446 | ||||
| 447 | 1 | 28µs | 28µs | Class::MOP::Mixin::AttributeCore->meta->add_attribute( # spent 488µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 37µs making 1 call to Class::MOP::Attribute::new
# spent 21µs making 1 call to Class::MOP::Mixin::meta |
| 448 | Class::MOP::Attribute->new('predicate' => ( | |||
| 449 | reader => { 'predicate' => \&Class::MOP::Mixin::AttributeCore::predicate }, | |||
| 450 | predicate => { 'has_predicate' => \&Class::MOP::Mixin::AttributeCore::has_predicate }, | |||
| 451 | )) | |||
| 452 | ); | |||
| 453 | ||||
| 454 | 1 | 37µs | 37µs | Class::MOP::Mixin::AttributeCore->meta->add_attribute( # spent 502µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 32µs making 1 call to Class::MOP::Attribute::new
# spent 23µs making 1 call to Class::MOP::Mixin::meta |
| 455 | Class::MOP::Attribute->new('clearer' => ( | |||
| 456 | reader => { 'clearer' => \&Class::MOP::Mixin::AttributeCore::clearer }, | |||
| 457 | predicate => { 'has_clearer' => \&Class::MOP::Mixin::AttributeCore::has_clearer }, | |||
| 458 | )) | |||
| 459 | ); | |||
| 460 | ||||
| 461 | 1 | 28µs | 28µs | Class::MOP::Mixin::AttributeCore->meta->add_attribute( # spent 452µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 28µs making 1 call to Class::MOP::Attribute::new
# spent 23µs making 1 call to Class::MOP::Mixin::meta |
| 462 | Class::MOP::Attribute->new('builder' => ( | |||
| 463 | reader => { 'builder' => \&Class::MOP::Mixin::AttributeCore::builder }, | |||
| 464 | predicate => { 'has_builder' => \&Class::MOP::Mixin::AttributeCore::has_builder }, | |||
| 465 | )) | |||
| 466 | ); | |||
| 467 | ||||
| 468 | 1 | 32µs | 32µs | Class::MOP::Mixin::AttributeCore->meta->add_attribute( # spent 468µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 27µs making 1 call to Class::MOP::Attribute::new
# spent 18µs making 1 call to Class::MOP::Mixin::meta |
| 469 | Class::MOP::Attribute->new('init_arg' => ( | |||
| 470 | reader => { 'init_arg' => \&Class::MOP::Mixin::AttributeCore::init_arg }, | |||
| 471 | predicate => { 'has_init_arg' => \&Class::MOP::Mixin::AttributeCore::has_init_arg }, | |||
| 472 | )) | |||
| 473 | ); | |||
| 474 | ||||
| 475 | 1 | 27µs | 27µs | Class::MOP::Mixin::AttributeCore->meta->add_attribute( # spent 295µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 27µs making 1 call to Class::MOP::Attribute::new
# spent 19µs making 1 call to Class::MOP::Mixin::meta |
| 476 | Class::MOP::Attribute->new('default' => ( | |||
| 477 | # default has a custom 'reader' method ... | |||
| 478 | predicate => { 'has_default' => \&Class::MOP::Mixin::AttributeCore::has_default }, | |||
| 479 | )) | |||
| 480 | ); | |||
| 481 | ||||
| 482 | 1 | 24µs | 24µs | Class::MOP::Mixin::AttributeCore->meta->add_attribute( # spent 649µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 36µs making 1 call to Class::MOP::Attribute::new
# spent 18µs making 1 call to Class::MOP::Mixin::meta |
| 483 | Class::MOP::Attribute->new('insertion_order' => ( | |||
| 484 | reader => { 'insertion_order' => \&Class::MOP::Mixin::AttributeCore::insertion_order }, | |||
| 485 | writer => { '_set_insertion_order' => \&Class::MOP::Mixin::AttributeCore::_set_insertion_order }, | |||
| 486 | predicate => { 'has_insertion_order' => \&Class::MOP::Mixin::AttributeCore::has_insertion_order }, | |||
| 487 | )) | |||
| 488 | ); | |||
| 489 | ||||
| 490 | ## -------------------------------------------------------- | |||
| 491 | ## Class::MOP::Attribute | |||
| 492 | 1 | 26µs | 26µs | Class::MOP::Attribute->meta->add_attribute( # spent 735µs making 1 call to Class::MOP::Object::meta
# spent 346µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 36µs making 1 call to Class::MOP::Attribute::new |
| 493 | Class::MOP::Attribute->new('associated_class' => ( | |||
| 494 | reader => { | |||
| 495 | # NOTE: we need to do this in order | |||
| 496 | # for the instance meta-object to | |||
| 497 | # not fall into meta-circular death | |||
| 498 | # | |||
| 499 | # we just alias the original method | |||
| 500 | # rather than re-produce it here | |||
| 501 | 'associated_class' => \&Class::MOP::Attribute::associated_class | |||
| 502 | } | |||
| 503 | )) | |||
| 504 | ); | |||
| 505 | ||||
| 506 | Class::MOP::Attribute->meta->add_attribute( | |||
| 507 | Class::MOP::Attribute->new('associated_methods' => ( | |||
| 508 | reader => { 'associated_methods' => \&Class::MOP::Attribute::associated_methods }, | |||
| 509 | 9 | 14µs | 2µs | # spent 53µs within Class::MOP::__ANON__[/usr/local/lib/perl/5.10.0/Class/MOP.pm:509] which was called 9 times, avg 6µs/call:
# 8 times (46µs+0s) by Class::MOP::Method::Generated::__ANON__[(eval 0)[/usr/local/lib/perl/5.10.0/Class/MOP/Method/Generated.pm:53]:95] at line 74 of (eval 0)[/usr/local/lib/perl/5.10.0/Class/MOP/Method/Generated.pm:53] at line 53 of /usr/local/lib/perl/5.10.0/Class/MOP/Method/Generated.pm, avg 6µs/call
# once (8µs+0s) by Class::MOP::Mixin::AttributeCore::default at line 53 of /usr/local/lib/perl/5.10.0/Class/MOP/Mixin/AttributeCore.pm |
| 510 | 1 | 25µs | 25µs | )) # spent 329µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 52µs making 1 call to Class::MOP::Attribute::new
# spent 20µs making 1 call to Class::MOP::Object::meta |
| 511 | ); | |||
| 512 | ||||
| 513 | Class::MOP::Attribute->meta->add_method('clone' => sub { | |||
| 514 | my $self = shift; | |||
| 515 | $self->meta->clone_object($self, @_); | |||
| 516 | 1 | 20µs | 20µs | }); # spent 116µs making 1 call to Class::MOP::Mixin::HasMethods::add_method
# spent 18µs making 1 call to Class::MOP::Object::meta |
| 517 | ||||
| 518 | ## -------------------------------------------------------- | |||
| 519 | ## Class::MOP::Method | |||
| 520 | 1 | 29µs | 29µs | Class::MOP::Method->meta->add_attribute( # spent 479µs making 1 call to Class::MOP::Object::meta
# spent 332µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 39µs making 1 call to Class::MOP::Attribute::new |
| 521 | Class::MOP::Attribute->new('body' => ( | |||
| 522 | reader => { 'body' => \&Class::MOP::Method::body }, | |||
| 523 | )) | |||
| 524 | ); | |||
| 525 | ||||
| 526 | 1 | 22µs | 22µs | Class::MOP::Method->meta->add_attribute( # spent 321µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 27µs making 1 call to Class::MOP::Attribute::new
# spent 19µs making 1 call to Class::MOP::Object::meta |
| 527 | Class::MOP::Attribute->new('associated_metaclass' => ( | |||
| 528 | reader => { 'associated_metaclass' => \&Class::MOP::Method::associated_metaclass }, | |||
| 529 | )) | |||
| 530 | ); | |||
| 531 | ||||
| 532 | 1 | 21µs | 21µs | Class::MOP::Method->meta->add_attribute( # spent 293µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 27µs making 1 call to Class::MOP::Attribute::new
# spent 18µs making 1 call to Class::MOP::Object::meta |
| 533 | Class::MOP::Attribute->new('package_name' => ( | |||
| 534 | reader => { 'package_name' => \&Class::MOP::Method::package_name }, | |||
| 535 | )) | |||
| 536 | ); | |||
| 537 | ||||
| 538 | 1 | 39µs | 39µs | Class::MOP::Method->meta->add_attribute( # spent 310µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 29µs making 1 call to Class::MOP::Attribute::new
# spent 19µs making 1 call to Class::MOP::Object::meta |
| 539 | Class::MOP::Attribute->new('name' => ( | |||
| 540 | reader => { 'name' => \&Class::MOP::Method::name }, | |||
| 541 | )) | |||
| 542 | ); | |||
| 543 | ||||
| 544 | 1 | 33µs | 33µs | Class::MOP::Method->meta->add_attribute( # spent 469µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 29µs making 1 call to Class::MOP::Attribute::new
# spent 18µs making 1 call to Class::MOP::Object::meta |
| 545 | Class::MOP::Attribute->new('original_method' => ( | |||
| 546 | reader => { 'original_method' => \&Class::MOP::Method::original_method }, | |||
| 547 | writer => { '_set_original_method' => \&Class::MOP::Method::_set_original_method }, | |||
| 548 | )) | |||
| 549 | ); | |||
| 550 | ||||
| 551 | ## -------------------------------------------------------- | |||
| 552 | ## Class::MOP::Method::Wrapped | |||
| 553 | ||||
| 554 | # NOTE: | |||
| 555 | # the way this item is initialized, this | |||
| 556 | # really does not follow the standard | |||
| 557 | # practices of attributes, but we put | |||
| 558 | # it here for completeness | |||
| 559 | 1 | 24µs | 24µs | Class::MOP::Method::Wrapped->meta->add_attribute( # spent 479µs making 1 call to Class::MOP::Object::meta
# spent 184µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 33µs making 1 call to Class::MOP::Attribute::new |
| 560 | Class::MOP::Attribute->new('modifier_table') | |||
| 561 | ); | |||
| 562 | ||||
| 563 | ## -------------------------------------------------------- | |||
| 564 | ## Class::MOP::Method::Generated | |||
| 565 | ||||
| 566 | 1 | 29µs | 29µs | Class::MOP::Method::Generated->meta->add_attribute( # spent 508µs making 1 call to Class::MOP::Object::meta
# spent 360µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 47µs making 1 call to Class::MOP::Attribute::new |
| 567 | Class::MOP::Attribute->new('is_inline' => ( | |||
| 568 | reader => { 'is_inline' => \&Class::MOP::Method::Generated::is_inline }, | |||
| 569 | default => 0, | |||
| 570 | )) | |||
| 571 | ); | |||
| 572 | ||||
| 573 | 1 | 22µs | 22µs | Class::MOP::Method::Generated->meta->add_attribute( # spent 304µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 33µs making 1 call to Class::MOP::Attribute::new
# spent 20µs making 1 call to Class::MOP::Object::meta |
| 574 | Class::MOP::Attribute->new('definition_context' => ( | |||
| 575 | reader => { 'definition_context' => \&Class::MOP::Method::Generated::definition_context }, | |||
| 576 | )) | |||
| 577 | ); | |||
| 578 | ||||
| 579 | ||||
| 580 | ## -------------------------------------------------------- | |||
| 581 | ## Class::MOP::Method::Inlined | |||
| 582 | ||||
| 583 | 1 | 32µs | 32µs | Class::MOP::Method::Inlined->meta->add_attribute( # spent 473µs making 1 call to Class::MOP::Object::meta
# spent 345µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 30µs making 1 call to Class::MOP::Attribute::new |
| 584 | Class::MOP::Attribute->new('_expected_method_class' => ( | |||
| 585 | reader => { '_expected_method_class' => \&Class::MOP::Method::Inlined::_expected_method_class }, | |||
| 586 | )) | |||
| 587 | ); | |||
| 588 | ||||
| 589 | ## -------------------------------------------------------- | |||
| 590 | ## Class::MOP::Method::Accessor | |||
| 591 | ||||
| 592 | 1 | 44µs | 44µs | Class::MOP::Method::Accessor->meta->add_attribute( # spent 443µs making 1 call to Class::MOP::Object::meta
# spent 332µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 28µs making 1 call to Class::MOP::Attribute::new |
| 593 | Class::MOP::Attribute->new('attribute' => ( | |||
| 594 | reader => { | |||
| 595 | 'associated_attribute' => \&Class::MOP::Method::Accessor::associated_attribute | |||
| 596 | }, | |||
| 597 | )) | |||
| 598 | ); | |||
| 599 | ||||
| 600 | 1 | 21µs | 21µs | Class::MOP::Method::Accessor->meta->add_attribute( # spent 318µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 27µs making 1 call to Class::MOP::Attribute::new
# spent 23µs making 1 call to Class::MOP::Object::meta |
| 601 | Class::MOP::Attribute->new('accessor_type' => ( | |||
| 602 | reader => { 'accessor_type' => \&Class::MOP::Method::Accessor::accessor_type }, | |||
| 603 | )) | |||
| 604 | ); | |||
| 605 | ||||
| 606 | ## -------------------------------------------------------- | |||
| 607 | ## Class::MOP::Method::Constructor | |||
| 608 | ||||
| 609 | Class::MOP::Method::Constructor->meta->add_attribute( | |||
| 610 | Class::MOP::Attribute->new('options' => ( | |||
| 611 | reader => { | |||
| 612 | 'options' => \&Class::MOP::Method::Constructor::options | |||
| 613 | }, | |||
| 614 | default => sub { +{} } | |||
| 615 | 1 | 31µs | 31µs | )) # spent 496µs making 1 call to Class::MOP::Object::meta
# spent 365µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 52µs making 1 call to Class::MOP::Attribute::new |
| 616 | ); | |||
| 617 | ||||
| 618 | 1 | 31µs | 31µs | Class::MOP::Method::Constructor->meta->add_attribute( # spent 318µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 29µs making 1 call to Class::MOP::Attribute::new
# spent 24µs making 1 call to Class::MOP::Object::meta |
| 619 | Class::MOP::Attribute->new('associated_metaclass' => ( | |||
| 620 | init_arg => "metaclass", # FIXME alias and rename | |||
| 621 | reader => { | |||
| 622 | 'associated_metaclass' => \&Class::MOP::Method::Constructor::associated_metaclass | |||
| 623 | }, | |||
| 624 | )) | |||
| 625 | ); | |||
| 626 | ||||
| 627 | ## -------------------------------------------------------- | |||
| 628 | ## Class::MOP::Instance | |||
| 629 | ||||
| 630 | # NOTE: | |||
| 631 | # these don't yet do much of anything, but are just | |||
| 632 | # included for completeness | |||
| 633 | ||||
| 634 | 1 | 26µs | 26µs | Class::MOP::Instance->meta->add_attribute( # spent 455µs making 1 call to Class::MOP::Object::meta
# spent 343µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 34µs making 1 call to Class::MOP::Attribute::new |
| 635 | Class::MOP::Attribute->new('associated_metaclass', | |||
| 636 | reader => { associated_metaclass => \&Class::MOP::Instance::associated_metaclass }, | |||
| 637 | ), | |||
| 638 | ); | |||
| 639 | ||||
| 640 | 1 | 27µs | 27µs | Class::MOP::Instance->meta->add_attribute( # spent 318µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 32µs making 1 call to Class::MOP::Attribute::new
# spent 19µs making 1 call to Class::MOP::Object::meta |
| 641 | Class::MOP::Attribute->new('_class_name', | |||
| 642 | init_arg => undef, | |||
| 643 | reader => { _class_name => \&Class::MOP::Instance::_class_name }, | |||
| 644 | #lazy => 1, # not yet supported by Class::MOP but out our version does it anyway | |||
| 645 | #default => sub { $_[0]->associated_metaclass->name }, | |||
| 646 | ), | |||
| 647 | ); | |||
| 648 | ||||
| 649 | 1 | 26µs | 26µs | Class::MOP::Instance->meta->add_attribute( # spent 317µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 36µs making 1 call to Class::MOP::Attribute::new
# spent 22µs making 1 call to Class::MOP::Object::meta |
| 650 | Class::MOP::Attribute->new('attributes', | |||
| 651 | reader => { attributes => \&Class::MOP::Instance::get_all_attributes }, | |||
| 652 | ), | |||
| 653 | ); | |||
| 654 | ||||
| 655 | 1 | 45µs | 45µs | Class::MOP::Instance->meta->add_attribute( # spent 311µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 28µs making 1 call to Class::MOP::Object::meta
# spent 27µs making 1 call to Class::MOP::Attribute::new |
| 656 | Class::MOP::Attribute->new('slots', | |||
| 657 | reader => { slots => \&Class::MOP::Instance::slots }, | |||
| 658 | ), | |||
| 659 | ); | |||
| 660 | ||||
| 661 | 1 | 26µs | 26µs | Class::MOP::Instance->meta->add_attribute( # spent 299µs making 1 call to Class::MOP::Mixin::HasAttributes::add_attribute
# spent 32µs making 1 call to Class::MOP::Attribute::new
# spent 18µs making 1 call to Class::MOP::Object::meta |
| 662 | Class::MOP::Attribute->new('slot_hash', | |||
| 663 | reader => { slot_hash => \&Class::MOP::Instance::slot_hash }, | |||
| 664 | ), | |||
| 665 | ); | |||
| 666 | ||||
| 667 | ## -------------------------------------------------------- | |||
| 668 | ## Class::MOP::Object | |||
| 669 | ||||
| 670 | # need to replace the meta method there with a real meta method object | |||
| 671 | 1 | 31µs | 31µs | Class::MOP::Object->meta->_add_meta_method('meta'); # spent 1.95ms making 1 call to Class::MOP::Mixin::HasMethods::_add_meta_method
# spent 23µs making 1 call to Class::MOP::Object::meta |
| 672 | ||||
| 673 | ## -------------------------------------------------------- | |||
| 674 | ## Class::MOP::Mixin | |||
| 675 | ||||
| 676 | # need to replace the meta method there with a real meta method object | |||
| 677 | 1 | 25µs | 25µs | Class::MOP::Mixin->meta->_add_meta_method('meta'); # spent 880µs making 1 call to Class::MOP::Mixin::HasMethods::_add_meta_method
# spent 24µs making 1 call to Class::MOP::Mixin::meta |
| 678 | ||||
| 679 | 1 | 129µs | 129µs | require Class::MOP::Deprecated unless our $no_deprecated; |
| 680 | ||||
| 681 | # we need the meta instance of the meta instance to be created now, in order | |||
| 682 | # for the constructor to be able to use it | |||
| 683 | 1 | 19µs | 19µs | Class::MOP::Instance->meta->get_meta_instance; # spent 240µs making 1 call to Class::MOP::Class::get_meta_instance
# spent 33µs making 1 call to Class::MOP::Object::meta |
| 684 | ||||
| 685 | # pretend the add_method never happenned. it hasn't yet affected anything | |||
| 686 | 1 | 10µs | 10µs | undef Class::MOP::Instance->meta->{_package_cache_flag}; # spent 22µs making 1 call to Class::MOP::Object::meta |
| 687 | ||||
| 688 | ## -------------------------------------------------------- | |||
| 689 | ## Now close all the Class::MOP::* classes | |||
| 690 | ||||
| 691 | # NOTE: we don't need to inline the the accessors this only lengthens | |||
| 692 | # the compile time of the MOP, and gives us no actual benefits. | |||
| 693 | ||||
| 694 | $_->meta->make_immutable( | |||
| 695 | inline_constructor => 0, | |||
| 696 | constructor_name => "_new", | |||
| 697 | inline_accessors => 0, | |||
| 698 | 1 | 9µs | 9µs | ) for qw/ # spent 25.5ms making 13 calls to Class::MOP::Class::make_immutable, avg 1.96ms/call
# spent 263µs making 13 calls to Class::MOP::Object::meta, avg 20µs/call |
| 699 | Class::MOP::Package | |||
| 700 | Class::MOP::Module | |||
| 701 | Class::MOP::Class | |||
| 702 | ||||
| 703 | Class::MOP::Attribute | |||
| 704 | Class::MOP::Method | |||
| 705 | Class::MOP::Instance | |||
| 706 | ||||
| 707 | Class::MOP::Object | |||
| 708 | ||||
| 709 | Class::MOP::Method::Generated | |||
| 710 | Class::MOP::Method::Inlined | |||
| 711 | ||||
| 712 | Class::MOP::Method::Accessor | |||
| 713 | Class::MOP::Method::Constructor | |||
| 714 | Class::MOP::Method::Wrapped | |||
| 715 | ||||
| 716 | Class::MOP::Method::Meta | |||
| 717 | 1 | 300ns | 300ns | /; |
| 718 | ||||
| 719 | $_->meta->make_immutable( | |||
| 720 | inline_constructor => 0, | |||
| 721 | constructor_name => undef, | |||
| 722 | inline_accessors => 0, | |||
| 723 | 1 | 7µs | 7µs | ) for qw/ # spent 712µs making 4 calls to Class::MOP::Class::make_immutable, avg 178µs/call
# spent 72µs making 4 calls to Class::MOP::Mixin::meta, avg 18µs/call |
| 724 | Class::MOP::Mixin | |||
| 725 | Class::MOP::Mixin::AttributeCore | |||
| 726 | Class::MOP::Mixin::HasAttributes | |||
| 727 | Class::MOP::Mixin::HasMethods | |||
| 728 | 1 | 167µs | 167µs | /; |
| 729 | ||||
| 730 | 1 | 245µs | 245µs | 1; |
| 731 | ||||
| 732 | __END__ | |||
| 733 | ||||
| 734 | =pod | |||
| 735 | ||||
| 736 | =head1 NAME | |||
| 737 | ||||
| 738 | Class::MOP - A Meta Object Protocol for Perl 5 | |||
| 739 | ||||
| 740 | =head1 DESCRIPTION | |||
| 741 | ||||
| 742 | This module is a fully functioning meta object protocol for the | |||
| 743 | Perl 5 object system. It makes no attempt to change the behavior or | |||
| 744 | characteristics of the Perl 5 object system, only to create a | |||
| 745 | protocol for its manipulation and introspection. | |||
| 746 | ||||
| 747 | That said, it does attempt to create the tools for building a rich set | |||
| 748 | of extensions to the Perl 5 object system. Every attempt has been made | |||
| 749 | to abide by the spirit of the Perl 5 object system that we all know | |||
| 750 | and love. | |||
| 751 | ||||
| 752 | This documentation is sparse on conceptual details. We suggest looking | |||
| 753 | at the items listed in the L<SEE ALSO> section for more | |||
| 754 | information. In particular the book "The Art of the Meta Object | |||
| 755 | Protocol" was very influential in the development of this system. | |||
| 756 | ||||
| 757 | =head2 What is a Meta Object Protocol? | |||
| 758 | ||||
| 759 | A meta object protocol is an API to an object system. | |||
| 760 | ||||
| 761 | To be more specific, it abstracts the components of an object system | |||
| 762 | (classes, object, methods, object attributes, etc.). These | |||
| 763 | abstractions can then be used to inspect and manipulate the object | |||
| 764 | system which they describe. | |||
| 765 | ||||
| 766 | It can be said that there are two MOPs for any object system; the | |||
| 767 | implicit MOP and the explicit MOP. The implicit MOP handles things | |||
| 768 | like method dispatch or inheritance, which happen automatically as | |||
| 769 | part of how the object system works. The explicit MOP typically | |||
| 770 | handles the introspection/reflection features of the object system. | |||
| 771 | ||||
| 772 | All object systems have implicit MOPs. Without one, they would not | |||
| 773 | work. Explicit MOPs are much less common, and depending on the | |||
| 774 | language can vary from restrictive (Reflection in Java or C#) to wide | |||
| 775 | open (CLOS is a perfect example). | |||
| 776 | ||||
| 777 | =head2 Yet Another Class Builder! Why? | |||
| 778 | ||||
| 779 | This is B<not> a class builder so much as a I<class builder | |||
| 780 | B<builder>>. The intent is that an end user will not use this module | |||
| 781 | directly, but instead this module is used by module authors to build | |||
| 782 | extensions and features onto the Perl 5 object system. | |||
| 783 | ||||
| 784 | This system is used by L<Moose>, which supplies a powerful class | |||
| 785 | builder system built entirely on top of C<Class::MOP>. | |||
| 786 | ||||
| 787 | =head2 Who is this module for? | |||
| 788 | ||||
| 789 | This module is for anyone who has ever created or wanted to create a | |||
| 790 | module for the Class:: namespace. The tools which this module provides | |||
| 791 | make doing complex Perl 5 wizardry simpler, by removing such barriers | |||
| 792 | as the need to hack symbol tables, or understand the fine details of | |||
| 793 | method dispatch. | |||
| 794 | ||||
| 795 | =head2 What changes do I have to make to use this module? | |||
| 796 | ||||
| 797 | This module was designed to be as unintrusive as possible. Many of its | |||
| 798 | features are accessible without B<any> change to your existing | |||
| 799 | code. It is meant to be a compliment to your existing code and not an | |||
| 800 | intrusion on your code base. Unlike many other B<Class::> modules, | |||
| 801 | this module B<does not> require you subclass it, or even that you | |||
| 802 | C<use> it in within your module's package. | |||
| 803 | ||||
| 804 | The only features which requires additions to your code are the | |||
| 805 | attribute handling and instance construction features, and these are | |||
| 806 | both completely optional features. The only reason for this is because | |||
| 807 | Perl 5's object system does not actually have these features built | |||
| 808 | in. More information about this feature can be found below. | |||
| 809 | ||||
| 810 | =head2 About Performance | |||
| 811 | ||||
| 812 | It is a common misconception that explicit MOPs are a performance hit. | |||
| 813 | This is not a universal truth, it is a side-effect of some specific | |||
| 814 | implementations. For instance, using Java reflection is slow because | |||
| 815 | the JVM cannot take advantage of any compiler optimizations, and the | |||
| 816 | JVM has to deal with much more runtime type information as well. | |||
| 817 | ||||
| 818 | Reflection in C# is marginally better as it was designed into the | |||
| 819 | language and runtime (the CLR). In contrast, CLOS (the Common Lisp | |||
| 820 | Object System) was built to support an explicit MOP, and so | |||
| 821 | performance is tuned for it. | |||
| 822 | ||||
| 823 | This library in particular does its absolute best to avoid putting | |||
| 824 | B<any> drain at all upon your code's performance. In fact, by itself | |||
| 825 | it does nothing to affect your existing code. So you only pay for what | |||
| 826 | you actually use. | |||
| 827 | ||||
| 828 | =head2 About Metaclass compatibility | |||
| 829 | ||||
| 830 | This module makes sure that all metaclasses created are both upwards | |||
| 831 | and downwards compatible. The topic of metaclass compatibility is | |||
| 832 | highly esoteric and is something only encountered when doing deep and | |||
| 833 | involved metaclass hacking. There are two basic kinds of metaclass | |||
| 834 | incompatibility; upwards and downwards. | |||
| 835 | ||||
| 836 | Upwards metaclass compatibility means that the metaclass of a | |||
| 837 | given class is either the same as (or a subclass of) all of the | |||
| 838 | class's ancestors. | |||
| 839 | ||||
| 840 | Downward metaclass compatibility means that the metaclasses of a | |||
| 841 | given class's ancestors are all either the same as (or a subclass | |||
| 842 | of) that metaclass. | |||
| 843 | ||||
| 844 | Here is a diagram showing a set of two classes (C<A> and C<B>) and | |||
| 845 | two metaclasses (C<Meta::A> and C<Meta::B>) which have correct | |||
| 846 | metaclass compatibility both upwards and downwards. | |||
| 847 | ||||
| 848 | +---------+ +---------+ | |||
| 849 | | Meta::A |<----| Meta::B | <....... (instance of ) | |||
| 850 | +---------+ +---------+ <------- (inherits from) | |||
| 851 | ^ ^ | |||
| 852 | : : | |||
| 853 | +---------+ +---------+ | |||
| 854 | | A |<----| B | | |||
| 855 | +---------+ +---------+ | |||
| 856 | ||||
| 857 | In actuality, I<all> of a class's metaclasses must be compatible, | |||
| 858 | not just the class metaclass. That includes the instance, attribute, | |||
| 859 | and method metaclasses, as well as the constructor and destructor | |||
| 860 | classes. | |||
| 861 | ||||
| 862 | C<Class::MOP> will attempt to fix some simple types of | |||
| 863 | incompatibilities. If all the metaclasses for the parent class are | |||
| 864 | I<subclasses> of the child's metaclasses then we can simply replace | |||
| 865 | the child's metaclasses with the parent's. In addition, if the child | |||
| 866 | is missing a metaclass that the parent has, we can also just make the | |||
| 867 | child use the parent's metaclass. | |||
| 868 | ||||
| 869 | As I said this is a highly esoteric topic and one you will only run | |||
| 870 | into if you do a lot of subclassing of L<Class::MOP::Class>. If you | |||
| 871 | are interested in why this is an issue see the paper I<Uniform and | |||
| 872 | safe metaclass composition> linked to in the L<SEE ALSO> section of | |||
| 873 | this document. | |||
| 874 | ||||
| 875 | =head2 Using custom metaclasses | |||
| 876 | ||||
| 877 | Always use the L<metaclass> pragma when using a custom metaclass, this | |||
| 878 | will ensure the proper initialization order and not accidentally | |||
| 879 | create an incorrect type of metaclass for you. This is a very rare | |||
| 880 | problem, and one which can only occur if you are doing deep metaclass | |||
| 881 | programming. So in other words, don't worry about it. | |||
| 882 | ||||
| 883 | Note that if you're using L<Moose> we encourage you to I<not> use | |||
| 884 | L<metaclass> pragma, and instead use L<Moose::Util::MetaRole> to apply | |||
| 885 | roles to a class's metaclasses. This topic is covered at length in | |||
| 886 | various L<Moose::Cookbook> recipes. | |||
| 887 | ||||
| 888 | =head1 PROTOCOLS | |||
| 889 | ||||
| 890 | The meta-object protocol is divided into 4 main sub-protocols: | |||
| 891 | ||||
| 892 | =head2 The Class protocol | |||
| 893 | ||||
| 894 | This provides a means of manipulating and introspecting a Perl 5 | |||
| 895 | class. It handles symbol table hacking for you, and provides a rich | |||
| 896 | set of methods that go beyond simple package introspection. | |||
| 897 | ||||
| 898 | See L<Class::MOP::Class> for more details. | |||
| 899 | ||||
| 900 | =head2 The Attribute protocol | |||
| 901 | ||||
| 902 | This provides a consistent representation for an attribute of a Perl 5 | |||
| 903 | class. Since there are so many ways to create and handle attributes in | |||
| 904 | Perl 5 OO, the Attribute protocol provide as much of a unified | |||
| 905 | approach as possible. Of course, you are always free to extend this | |||
| 906 | protocol by subclassing the appropriate classes. | |||
| 907 | ||||
| 908 | See L<Class::MOP::Attribute> for more details. | |||
| 909 | ||||
| 910 | =head2 The Method protocol | |||
| 911 | ||||
| 912 | This provides a means of manipulating and introspecting methods in the | |||
| 913 | Perl 5 object system. As with attributes, there are many ways to | |||
| 914 | approach this topic, so we try to keep it pretty basic, while still | |||
| 915 | making it possible to extend the system in many ways. | |||
| 916 | ||||
| 917 | See L<Class::MOP::Method> for more details. | |||
| 918 | ||||
| 919 | =head2 The Instance protocol | |||
| 920 | ||||
| 921 | This provides a layer of abstraction for creating object instances. | |||
| 922 | Since the other layers use this protocol, it is relatively easy to | |||
| 923 | change the type of your instances from the default hash reference to | |||
| 924 | some other type of reference. Several examples are provided in the | |||
| 925 | F<examples/> directory included in this distribution. | |||
| 926 | ||||
| 927 | See L<Class::MOP::Instance> for more details. | |||
| 928 | ||||
| 929 | =head1 FUNCTIONS | |||
| 930 | ||||
| 931 | Note that this module does not export any constants or functions. | |||
| 932 | ||||
| 933 | =head2 Constants | |||
| 934 | ||||
| 935 | =over 4 | |||
| 936 | ||||
| 937 | =item I<Class::MOP::IS_RUNNING_ON_5_10> | |||
| 938 | ||||
| 939 | We set this constant depending on what version perl we are on, this | |||
| 940 | allows us to take advantage of new 5.10 features and stay backwards | |||
| 941 | compatible. | |||
| 942 | ||||
| 943 | =back | |||
| 944 | ||||
| 945 | =head2 Utility functions | |||
| 946 | ||||
| 947 | Note that these are all called as B<functions, not methods>. | |||
| 948 | ||||
| 949 | =over 4 | |||
| 950 | ||||
| 951 | =item B<Class::MOP::load_class($class_name, \%options?)> | |||
| 952 | ||||
| 953 | This will load the specified C<$class_name>, if it is not already | |||
| 954 | loaded (as reported by C<is_class_loaded>). This function can be used | |||
| 955 | in place of tricks like C<eval "use $module"> or using C<require> | |||
| 956 | unconditionally. | |||
| 957 | ||||
| 958 | If the module cannot be loaded, an exception is thrown. | |||
| 959 | ||||
| 960 | You can pass a hash reference with options as second argument. The | |||
| 961 | only option currently recognised is C<-version>, which will ensure | |||
| 962 | that the loaded class has at least the required version. | |||
| 963 | ||||
| 964 | See also L</Class Loading Options>. | |||
| 965 | ||||
| 966 | For historical reasons, this function explicitly returns a true value. | |||
| 967 | ||||
| 968 | =item B<Class::MOP::is_class_loaded($class_name, \%options?)> | |||
| 969 | ||||
| 970 | Returns a boolean indicating whether or not C<$class_name> has been | |||
| 971 | loaded. | |||
| 972 | ||||
| 973 | This does a basic check of the symbol table to try and determine as | |||
| 974 | best it can if the C<$class_name> is loaded, it is probably correct | |||
| 975 | about 99% of the time, but it can be fooled into reporting false | |||
| 976 | positives. In particular, loading any of the core L<IO> modules will | |||
| 977 | cause most of the rest of the core L<IO> modules to falsely report | |||
| 978 | having been loaded, due to the way the base L<IO> module works. | |||
| 979 | ||||
| 980 | You can pass a hash reference with options as second argument. The | |||
| 981 | only option currently recognised is C<-version>, which will ensure | |||
| 982 | that the loaded class has at least the required version. | |||
| 983 | ||||
| 984 | See also L</Class Loading Options>. | |||
| 985 | ||||
| 986 | =item B<Class::MOP::get_code_info($code)> | |||
| 987 | ||||
| 988 | This function returns two values, the name of the package the C<$code> | |||
| 989 | is from and the name of the C<$code> itself. This is used by several | |||
| 990 | elements of the MOP to determine where a given C<$code> reference is | |||
| 991 | from. | |||
| 992 | ||||
| 993 | =item B<Class::MOP::class_of($instance_or_class_name)> | |||
| 994 | ||||
| 995 | This will return the metaclass of the given instance or class name. If the | |||
| 996 | class lacks a metaclass, no metaclass will be initialized, and C<undef> will be | |||
| 997 | returned. | |||
| 998 | ||||
| 999 | =item B<Class::MOP::check_package_cache_flag($pkg)> | |||
| 1000 | ||||
| 1001 | B<NOTE: DO NOT USE THIS FUNCTION, IT IS FOR INTERNAL USE ONLY!> | |||
| 1002 | ||||
| 1003 | This will return an integer that is managed by L<Class::MOP::Class> to | |||
| 1004 | determine if a module's symbol table has been altered. | |||
| 1005 | ||||
| 1006 | In Perl 5.10 or greater, this flag is package specific. However in | |||
| 1007 | versions prior to 5.10, this will use the C<PL_sub_generation> | |||
| 1008 | variable which is not package specific. | |||
| 1009 | ||||
| 1010 | =item B<Class::MOP::load_first_existing_class(@class_names)> | |||
| 1011 | ||||
| 1012 | =item B<Class::MOP::load_first_existing_class($classA, \%optionsA?, $classB, ...)> | |||
| 1013 | ||||
| 1014 | B<NOTE: DO NOT USE THIS FUNCTION, IT IS FOR INTERNAL USE ONLY!> | |||
| 1015 | ||||
| 1016 | Given a list of class names, this function will attempt to load each | |||
| 1017 | one in turn. | |||
| 1018 | ||||
| 1019 | If it finds a class it can load, it will return that class' name. If | |||
| 1020 | none of the classes can be loaded, it will throw an exception. | |||
| 1021 | ||||
| 1022 | Additionally, you can pass a hash reference with options after each | |||
| 1023 | class name. Currently, only C<-version> is recognised and will ensure | |||
| 1024 | that the loaded class has at least the required version. If the class | |||
| 1025 | version is not sufficient, an exception will be raised. | |||
| 1026 | ||||
| 1027 | See also L</Class Loading Options>. | |||
| 1028 | ||||
| 1029 | =back | |||
| 1030 | ||||
| 1031 | =head2 Metaclass cache functions | |||
| 1032 | ||||
| 1033 | Class::MOP holds a cache of metaclasses. The following are functions | |||
| 1034 | (B<not methods>) which can be used to access that cache. It is not | |||
| 1035 | recommended that you mess with these. Bad things could happen, but if | |||
| 1036 | you are brave and willing to risk it: go for it! | |||
| 1037 | ||||
| 1038 | =over 4 | |||
| 1039 | ||||
| 1040 | =item B<Class::MOP::get_all_metaclasses> | |||
| 1041 | ||||
| 1042 | This will return a hash of all the metaclass instances that have | |||
| 1043 | been cached by L<Class::MOP::Class>, keyed by the package name. | |||
| 1044 | ||||
| 1045 | =item B<Class::MOP::get_all_metaclass_instances> | |||
| 1046 | ||||
| 1047 | This will return a list of all the metaclass instances that have | |||
| 1048 | been cached by L<Class::MOP::Class>. | |||
| 1049 | ||||
| 1050 | =item B<Class::MOP::get_all_metaclass_names> | |||
| 1051 | ||||
| 1052 | This will return a list of all the metaclass names that have | |||
| 1053 | been cached by L<Class::MOP::Class>. | |||
| 1054 | ||||
| 1055 | =item B<Class::MOP::get_metaclass_by_name($name)> | |||
| 1056 | ||||
| 1057 | This will return a cached L<Class::MOP::Class> instance, or nothing | |||
| 1058 | if no metaclass exists with that C<$name>. | |||
| 1059 | ||||
| 1060 | =item B<Class::MOP::store_metaclass_by_name($name, $meta)> | |||
| 1061 | ||||
| 1062 | This will store a metaclass in the cache at the supplied C<$key>. | |||
| 1063 | ||||
| 1064 | =item B<Class::MOP::weaken_metaclass($name)> | |||
| 1065 | ||||
| 1066 | In rare cases (e.g. anonymous metaclasses) it is desirable to | |||
| 1067 | store a weakened reference in the metaclass cache. This | |||
| 1068 | function will weaken the reference to the metaclass stored | |||
| 1069 | in C<$name>. | |||
| 1070 | ||||
| 1071 | =item B<Class::MOP::does_metaclass_exist($name)> | |||
| 1072 | ||||
| 1073 | This will return true of there exists a metaclass stored in the | |||
| 1074 | C<$name> key, and return false otherwise. | |||
| 1075 | ||||
| 1076 | =item B<Class::MOP::remove_metaclass_by_name($name)> | |||
| 1077 | ||||
| 1078 | This will remove the metaclass stored in the C<$name> key. | |||
| 1079 | ||||
| 1080 | =back | |||
| 1081 | ||||
| 1082 | =head2 Class Loading Options | |||
| 1083 | ||||
| 1084 | =over 4 | |||
| 1085 | ||||
| 1086 | =item -version | |||
| 1087 | ||||
| 1088 | Can be used to pass a minimum required version that will be checked | |||
| 1089 | against the class version after it was loaded. | |||
| 1090 | ||||
| 1091 | =back | |||
| 1092 | ||||
| 1093 | =head1 SEE ALSO | |||
| 1094 | ||||
| 1095 | =head2 Books | |||
| 1096 | ||||
| 1097 | There are very few books out on Meta Object Protocols and Metaclasses | |||
| 1098 | because it is such an esoteric topic. The following books are really | |||
| 1099 | the only ones I have found. If you know of any more, B<I<please>> | |||
| 1100 | email me and let me know, I would love to hear about them. | |||
| 1101 | ||||
| 1102 | =over 4 | |||
| 1103 | ||||
| 1104 | =item I<The Art of the Meta Object Protocol> | |||
| 1105 | ||||
| 1106 | =item I<Advances in Object-Oriented Metalevel Architecture and Reflection> | |||
| 1107 | ||||
| 1108 | =item I<Putting MetaClasses to Work> | |||
| 1109 | ||||
| 1110 | =item I<Smalltalk: The Language> | |||
| 1111 | ||||
| 1112 | =back | |||
| 1113 | ||||
| 1114 | =head2 Papers | |||
| 1115 | ||||
| 1116 | =over 4 | |||
| 1117 | ||||
| 1118 | =item "Uniform and safe metaclass composition" | |||
| 1119 | ||||
| 1120 | An excellent paper by the people who brought us the original Traits paper. | |||
| 1121 | This paper is on how Traits can be used to do safe metaclass composition, | |||
| 1122 | and offers an excellent introduction section which delves into the topic of | |||
| 1123 | metaclass compatibility. | |||
| 1124 | ||||
| 1125 | L<http://www.iam.unibe.ch/~scg/Archive/Papers/Duca05ySafeMetaclassTrait.pdf> | |||
| 1126 | ||||
| 1127 | =item "Safe Metaclass Programming" | |||
| 1128 | ||||
| 1129 | This paper seems to precede the above paper, and propose a mix-in based | |||
| 1130 | approach as opposed to the Traits based approach. Both papers have similar | |||
| 1131 | information on the metaclass compatibility problem space. | |||
| 1132 | ||||
| 1133 | L<http://citeseer.ist.psu.edu/37617.html> | |||
| 1134 | ||||
| 1135 | =back | |||
| 1136 | ||||
| 1137 | =head2 Prior Art | |||
| 1138 | ||||
| 1139 | =over 4 | |||
| 1140 | ||||
| 1141 | =item The Perl 6 MetaModel work in the Pugs project | |||
| 1142 | ||||
| 1143 | =over 4 | |||
| 1144 | ||||
| 1145 | =item L<http://svn.openfoundry.org/pugs/misc/Perl-MetaModel/> | |||
| 1146 | ||||
| 1147 | =item L<http://github.com/perl6/p5-modules/tree/master/Perl6-ObjectSpace/> | |||
| 1148 | ||||
| 1149 | =back | |||
| 1150 | ||||
| 1151 | =back | |||
| 1152 | ||||
| 1153 | =head2 Articles | |||
| 1154 | ||||
| 1155 | =over 4 | |||
| 1156 | ||||
| 1157 | =item CPAN Module Review of Class::MOP | |||
| 1158 | ||||
| 1159 | L<http://www.oreillynet.com/onlamp/blog/2006/06/cpan_module_review_classmop.html> | |||
| 1160 | ||||
| 1161 | =back | |||
| 1162 | ||||
| 1163 | =head1 SIMILAR MODULES | |||
| 1164 | ||||
| 1165 | As I have said above, this module is a class-builder-builder, so it is | |||
| 1166 | not the same thing as modules like L<Class::Accessor> and | |||
| 1167 | L<Class::MethodMaker>. That being said there are very few modules on CPAN | |||
| 1168 | with similar goals to this module. The one I have found which is most | |||
| 1169 | like this module is L<Class::Meta>, although it's philosophy and the MOP it | |||
| 1170 | creates are very different from this modules. | |||
| 1171 | ||||
| 1172 | =head1 BUGS | |||
| 1173 | ||||
| 1174 | All complex software has bugs lurking in it, and this module is no | |||
| 1175 | exception. | |||
| 1176 | ||||
| 1177 | Please report any bugs to C<bug-class-mop@rt.cpan.org>, or through the | |||
| 1178 | web interface at L<http://rt.cpan.org>. | |||
| 1179 | ||||
| 1180 | You can also discuss feature requests or possible bugs on the Moose | |||
| 1181 | mailing list (moose@perl.org) or on IRC at | |||
| 1182 | L<irc://irc.perl.org/#moose>. | |||
| 1183 | ||||
| 1184 | =head1 ACKNOWLEDGEMENTS | |||
| 1185 | ||||
| 1186 | =over 4 | |||
| 1187 | ||||
| 1188 | =item Rob Kinyon | |||
| 1189 | ||||
| 1190 | Thanks to Rob for actually getting the development of this module kick-started. | |||
| 1191 | ||||
| 1192 | =back | |||
| 1193 | ||||
| 1194 | =head1 AUTHORS | |||
| 1195 | ||||
| 1196 | Stevan Little E<lt>stevan@iinteractive.comE<gt> | |||
| 1197 | ||||
| 1198 | B<with contributions from:> | |||
| 1199 | ||||
| 1200 | Brandon (blblack) Black | |||
| 1201 | ||||
| 1202 | Florian (rafl) Ragwitz | |||
| 1203 | ||||
| 1204 | Guillermo (groditi) Roditi | |||
| 1205 | ||||
| 1206 | Dave (autarch) Rolsky | |||
| 1207 | ||||
| 1208 | Matt (mst) Trout | |||
| 1209 | ||||
| 1210 | Rob (robkinyon) Kinyon | |||
| 1211 | ||||
| 1212 | Yuval (nothingmuch) Kogman | |||
| 1213 | ||||
| 1214 | Scott (konobi) McWhirter | |||
| 1215 | ||||
| 1216 | Dylan Hardison | |||
| 1217 | ||||
| 1218 | =head1 COPYRIGHT AND LICENSE | |||
| 1219 | ||||
| 1220 | Copyright 2006-2010 by Infinity Interactive, Inc. | |||
| 1221 | ||||
| 1222 | L<http://www.iinteractive.com> | |||
| 1223 | ||||
| 1224 | This library is free software; you can redistribute it and/or modify | |||
| 1225 | it under the same terms as Perl itself. | |||
| 1226 | ||||
| 1227 | =cut | |||
# spent 2.35ms within Class::MOP::get_code_info which was called 573 times, avg 4µs/call:
# 393 times (1.55ms+0s) by Class::MOP::Mixin::HasMethods::add_method at line 84 of /usr/local/lib/perl/5.10.0/Class/MOP/Mixin/HasMethods.pm, avg 4µs/call
# 178 times (790µs+0s) by Class::MOP::Mixin::HasMethods::_code_is_mine at line 100 of /usr/local/lib/perl/5.10.0/Class/MOP/Mixin/HasMethods.pm, avg 4µs/call
# 2 times (10µs+0s) by Moose::Exporter::_make_sub_exporter_params at line 206 of /usr/local/lib/perl/5.10.0/Moose/Exporter.pm, avg 5µs/call | ||||
# spent 924µs within Class::MOP::is_class_loaded which was called 129 times, avg 7µs/call:
# 71 times (517µs+0s) by Class::MOP::load_first_existing_class at line 107 of /usr/local/lib/perl/5.10.0/Class/MOP.pm, avg 7µs/call
# 58 times (406µs+0s) by Class::MOP::Class::_immutable_metaclass at line 1205 of /usr/local/lib/perl/5.10.0/Class/MOP/Class.pm, avg 7µs/call |