X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FClass%2FMOP%2FClass.pm;h=1b4580fb57573debff91009fc48c71f3a6277162;hb=fa16e528c74e94ce28ddd8f6e7d8421e5ec0b3c9;hp=28f1923b0ab2bde4d5401f1e2c7f351af64cecc5;hpb=aa448b163f4882fc3e4b92a1c1f22e3c9ad9f933;p=gitmo%2FClass-MOP.git diff --git a/lib/Class/MOP/Class.pm b/lib/Class/MOP/Class.pm index 28f1923..1b4580f 100644 --- a/lib/Class/MOP/Class.pm +++ b/lib/Class/MOP/Class.pm @@ -8,9 +8,10 @@ use Carp 'confess'; use Scalar::Util 'blessed', 'reftype'; use Sub::Name 'subname'; use B 'svref_2object'; -use Clone (); -our $VERSION = '0.03'; +our $VERSION = '0.14'; + +use Class::MOP::Instance; # Self-introspection @@ -23,15 +24,19 @@ sub meta { Class::MOP::Class->initialize(blessed($_[0]) || $_[0]) } # there is no need to worry about destruction though # because they should die only when the program dies. # After all, do package definitions even get reaped? - my %METAS; + my %METAS; + + # means of accessing all the metaclasses that have + # been initialized thus far (for mugwumps obj browser) + sub get_all_metaclasses { %METAS } + sub get_all_metaclass_instances { values %METAS } + sub get_all_metaclass_names { keys %METAS } sub initialize { my $class = shift; my $package_name = shift; - (defined $package_name && $package_name) - || confess "You must pass a package name"; - # make sure the package name is not blessed - $package_name = blessed($package_name) || $package_name; + (defined $package_name && $package_name && !blessed($package_name)) + || confess "You must pass a package name and it cannot be blessed"; $class->construct_class_instance(':package' => $package_name, @_); } @@ -47,7 +52,13 @@ sub meta { Class::MOP::Class->initialize(blessed($_[0]) || $_[0]) } my $package_name = $options{':package'}; (defined $package_name && $package_name) || confess "You must pass a package name"; - return $METAS{$package_name} if exists $METAS{$package_name}; + # NOTE: + # return the metaclass if we have it cached, + # and it is still defined (it has not been + # reaped by DESTROY yet, which can happen + # annoyingly enough during global destruction) + return $METAS{$package_name} + if exists $METAS{$package_name} && defined $METAS{$package_name}; $class = blessed($class) || $class; # now create the metaclass my $meta; @@ -56,7 +67,8 @@ sub meta { Class::MOP::Class->initialize(blessed($_[0]) || $_[0]) } '$:package' => $package_name, '%:attributes' => {}, '$:attribute_metaclass' => $options{':attribute_metaclass'} || 'Class::MOP::Attribute', - '$:method_metaclass' => $options{':method_metaclass'} || 'Class::MOP::Method', + '$:method_metaclass' => $options{':method_metaclass'} || 'Class::MOP::Method', + '$:instance_metaclass' => $options{':instance_metaclass'} || 'Class::MOP::Instance', } => $class; } else { @@ -75,20 +87,27 @@ sub meta { Class::MOP::Class->initialize(blessed($_[0]) || $_[0]) } my $self = shift; # this is always okay ... - return if blessed($self) eq 'Class::MOP::Class'; + return if blessed($self) eq 'Class::MOP::Class' && + $self->instance_metaclass eq 'Class::MOP::Instance'; my @class_list = $self->class_precedence_list; shift @class_list; # shift off $self->name foreach my $class_name (@class_list) { - next unless $METAS{$class_name}; - my $meta = $METAS{$class_name}; + my $meta = $METAS{$class_name} || next; ($self->isa(blessed($meta))) || confess $self->name . "->meta => (" . (blessed($self)) . ")" . " is not compatible with the " . $class_name . "->meta => (" . (blessed($meta)) . ")"; + # NOTE: + # we also need to check that instance metaclasses + # are compatabile in the same the class. + ($self->instance_metaclass->isa($meta->instance_metaclass)) + || confess $self->name . "->meta => (" . ($self->instance_metaclass) . ")" . + " is not compatible with the " . + $class_name . "->meta => (" . ($meta->instance_metaclass) . ")"; } - } + } } sub create { @@ -126,6 +145,20 @@ sub create { return $meta; } +{ + # NOTE: + # this should be sufficient, if you have a + # use case where it is not, write a test and + # I will change it. + my $ANON_CLASS_SERIAL = 0; + + sub create_anon_class { + my ($class, %options) = @_; + my $package_name = 'Class::MOP::Class::__ANON__::SERIAL::' . ++$ANON_CLASS_SERIAL; + return $class->create($package_name, '0.00', %options); + } +} + ## Attribute readers # NOTE: @@ -136,6 +169,7 @@ sub name { $_[0]->{'$:package'} } sub get_attribute_map { $_[0]->{'%:attributes'} } sub attribute_metaclass { $_[0]->{'$:attribute_metaclass'} } sub method_metaclass { $_[0]->{'$:method_metaclass'} } +sub instance_metaclass { $_[0]->{'$:instance_metaclass'} } # Instance Construction & Cloning @@ -148,25 +182,27 @@ sub new_object { # which will deal with the singletons return $class->construct_class_instance(@_) if $class->name->isa('Class::MOP::Class'); - bless $class->construct_instance(@_) => $class->name; + return $class->construct_instance(@_); } sub construct_instance { my ($class, %params) = @_; - my $instance = {}; + my $meta_instance = $class->get_meta_instance(); + my $instance = $meta_instance->create_instance(); foreach my $attr ($class->compute_all_applicable_attributes()) { - my $init_arg = $attr->init_arg(); - # try to fetch the init arg from the %params ... - my $val; - $val = $params{$init_arg} if exists $params{$init_arg}; - # if nothing was in the %params, we can use the - # attribute's default value (if it has one) - $val ||= $attr->default($instance) if $attr->has_default(); - $instance->{$attr->name} = $val; + $attr->initialize_instance_slot($meta_instance, $instance, \%params); } return $instance; } +sub get_meta_instance { + my $class = shift; + return $class->instance_metaclass->new( + $class, + $class->compute_all_applicable_attributes() + ); +} + sub clone_object { my $class = shift; my $instance = shift; @@ -177,25 +213,18 @@ sub clone_object { # Class::MOP::Class singletons here, they # should not be cloned. return $instance if $instance->isa('Class::MOP::Class'); - bless $class->clone_instance($instance, @_) => blessed($instance); + $class->clone_instance($instance, @_); } sub clone_instance { my ($class, $instance, %params) = @_; (blessed($instance)) || confess "You can only clone instances, \$self is not a blessed instance"; - # NOTE: - # This will deep clone, which might - # not be what you always want. So - # the best thing is to write a more - # controled &clone method locally - # in the class (see Class::MOP) - my $clone = Clone::clone($instance); - foreach my $attr ($class->compute_all_applicable_attributes()) { - my $init_arg = $attr->init_arg(); - # try to fetch the init arg from the %params ... - $clone->{$attr->name} = $params{$init_arg} - if exists $params{$init_arg}; + my $meta_instance = $class->get_meta_instance(); + my $clone = $meta_instance->clone_instance($instance); + foreach my $key (%params) { + next unless $meta_instance->is_valid_slot($key); + $meta_instance->set_slot_value($clone, $key, $params{$key}); } return $clone; } @@ -207,8 +236,7 @@ sub clone_instance { sub version { my $self = shift; - no strict 'refs'; - ${$self->name . '::VERSION'}; + ${$self->get_package_variable('$VERSION')}; } # Inheritance @@ -219,8 +247,15 @@ sub superclasses { if (@_) { my @supers = @_; @{$self->name . '::ISA'} = @supers; + # NOTE: + # we need to check the metaclass + # compatability here so that we can + # be sure that the superclass is + # not potentially creating an issues + # we don't know about + $self->check_metaclass_compatability(); } - @{$self->name . '::ISA'}; + @{$self->name . '::ISA'}; } sub class_precedence_list { @@ -230,8 +265,8 @@ sub class_precedence_list { # This will do nothing if all is well, and blow # up otherwise. Yes, it's an ugly hack, better # suggestions are welcome. - { $self->name->isa('This is a test for circular inheritance') } - # ... and no back to our regularly scheduled program + { ($self->name || return)->isa('This is a test for circular inheritance') } + # ... and now back to our regularly scheduled program ( $self->name, map { @@ -247,49 +282,115 @@ sub add_method { (defined $method_name && $method_name) || confess "You must define a method name"; # use reftype here to allow for blessed subs ... - (reftype($method) && reftype($method) eq 'CODE') + ('CODE' eq (reftype($method) || '')) || confess "Your code block must be a CODE reference"; my $full_method_name = ($self->name . '::' . $method_name); - + + $method = $self->method_metaclass->wrap($method) unless blessed($method); + no strict 'refs'; no warnings 'redefine'; *{$full_method_name} = subname $full_method_name => $method; } +{ + my $fetch_and_prepare_method = sub { + my ($self, $method_name) = @_; + # fetch it locally + my $method = $self->get_method($method_name); + # if we dont have local ... + unless ($method) { + # make sure this method even exists ... + ($self->find_next_method_by_name($method_name)) + || confess "The method '$method_name' is not found in the inherience hierarchy for this class"; + # if so, then create a local which just + # calls the next applicable method ... + $self->add_method($method_name => sub { + $self->find_next_method_by_name($method_name)->(@_); + }); + $method = $self->get_method($method_name); + } + + # now make sure we wrap it properly + # (if it isnt already) + unless ($method->isa('Class::MOP::Method::Wrapped')) { + $method = Class::MOP::Method::Wrapped->wrap($method); + $self->add_method($method_name => $method); + } + return $method; + }; + + sub add_before_method_modifier { + my ($self, $method_name, $method_modifier) = @_; + (defined $method_name && $method_name) + || confess "You must pass in a method name"; + my $method = $fetch_and_prepare_method->($self, $method_name); + $method->add_before_modifier(subname ':before' => $method_modifier); + } + + sub add_after_method_modifier { + my ($self, $method_name, $method_modifier) = @_; + (defined $method_name && $method_name) + || confess "You must pass in a method name"; + my $method = $fetch_and_prepare_method->($self, $method_name); + $method->add_after_modifier(subname ':after' => $method_modifier); + } + + sub add_around_method_modifier { + my ($self, $method_name, $method_modifier) = @_; + (defined $method_name && $method_name) + || confess "You must pass in a method name"; + my $method = $fetch_and_prepare_method->($self, $method_name); + $method->add_around_modifier(subname ':around' => $method_modifier); + } + + # NOTE: + # the methods above used to be named like this: + # ${pkg}::${method}:(before|after|around) + # but this proved problematic when using one modifier + # to wrap multiple methods (something which is likely + # to happen pretty regularly IMO). So instead of naming + # it like this, I have chosen to just name them purely + # with their modifier names, like so: + # :(before|after|around) + # The fact is that in a stack trace, it will be fairly + # evident from the context what method they are attached + # to, and so don't need the fully qualified name. +} + sub alias_method { my ($self, $method_name, $method) = @_; (defined $method_name && $method_name) || confess "You must define a method name"; # use reftype here to allow for blessed subs ... - (reftype($method) && reftype($method) eq 'CODE') + ('CODE' eq (reftype($method) || '')) || confess "Your code block must be a CODE reference"; - my $full_method_name = ($self->name . '::' . $method_name); + my $full_method_name = ($self->name . '::' . $method_name); + + $method = $self->method_metaclass->wrap($method) unless blessed($method); no strict 'refs'; no warnings 'redefine'; *{$full_method_name} = $method; } -{ - - ## private utility functions for has_method - my $_find_subroutine_package_name = sub { eval { svref_2object($_[0])->GV->STASH->NAME } || '' }; - my $_find_subroutine_name = sub { eval { svref_2object($_[0])->GV->NAME } || '' }; +sub has_method { + my ($self, $method_name) = @_; + (defined $method_name && $method_name) + || confess "You must define a method name"; - sub has_method { - my ($self, $method_name) = @_; - (defined $method_name && $method_name) - || confess "You must define a method name"; + my $sub_name = ($self->name . '::' . $method_name); - my $sub_name = ($self->name . '::' . $method_name); - - no strict 'refs'; - return 0 if !defined(&{$sub_name}); - return 0 if $_find_subroutine_package_name->(\&{$sub_name}) ne $self->name && - $_find_subroutine_name->(\&{$sub_name}) ne '__ANON__'; - return 1; - } - + no strict 'refs'; + return 0 if !defined(&{$sub_name}); + my $method = \&{$sub_name}; + return 0 if (svref_2object($method)->GV->STASH->NAME || '') ne $self->name && + (svref_2object($method)->GV->NAME || '') ne '__ANON__'; + + # at this point we are relatively sure + # it is our method, so we bless/wrap it + $self->method_metaclass->wrap($method) unless blessed($method); + return 1; } sub get_method { @@ -297,10 +398,10 @@ sub get_method { (defined $method_name && $method_name) || confess "You must define a method name"; + return unless $self->has_method($method_name); + no strict 'refs'; - return \&{$self->name . '::' . $method_name} - if $self->has_method($method_name); - return; # <- make sure to return undef + return \&{$self->name . '::' . $method_name}; } sub remove_method { @@ -320,7 +421,7 @@ sub remove_method { sub get_method_list { my $self = shift; no strict 'refs'; - grep { $self->has_method($_) } %{$self->name . '::'}; + grep { $self->has_method($_) } keys %{$self->name . '::'}; } sub compute_all_applicable_methods { @@ -363,7 +464,7 @@ sub find_all_methods_by_name { next if $seen_class{$class}; $seen_class{$class}++; # fetch the meta-class ... - my $meta = $self->initialize($class);; + my $meta = $self->initialize($class); push @methods => { name => $method_name, class => $class, @@ -371,7 +472,28 @@ sub find_all_methods_by_name { } if $meta->has_method($method_name); } return @methods; +} +sub find_next_method_by_name { + my ($self, $method_name) = @_; + (defined $method_name && $method_name) + || confess "You must define a method name to find"; + # keep a record of what we have seen + # here, this will handle all the + # inheritence issues because we are + # using the &class_precedence_list + my %seen_class; + my @cpl = $self->class_precedence_list(); + shift @cpl; # discard ourselves + foreach my $class (@cpl) { + next if $seen_class{$class}; + $seen_class{$class}++; + # fetch the meta-class ... + my $meta = $self->initialize($class); + return $meta->get_method($method_name) + if $meta->has_method($method_name); + } + return; } ## Attributes @@ -385,8 +507,11 @@ sub add_attribute { ($attribute->isa('Class::MOP::Attribute')) || confess "Your attribute must be an instance of Class::MOP::Attribute (or a subclass)"; $attribute->attach_to_class($self); - $attribute->install_accessors(); + $attribute->install_accessors(); $self->get_attribute_map->{$attribute->name} = $attribute; + + # FIXME + # in theory we have to tell everyone the slot structure may have changed } sub has_attribute { @@ -401,7 +526,8 @@ sub get_attribute { (defined $attribute_name && $attribute_name) || confess "You must define an attribute name"; return $self->get_attribute_map->{$attribute_name} - if $self->has_attribute($attribute_name); + if $self->has_attribute($attribute_name); + return; } sub remove_attribute { @@ -409,10 +535,10 @@ sub remove_attribute { (defined $attribute_name && $attribute_name) || confess "You must define an attribute name"; my $removed_attribute = $self->get_attribute_map->{$attribute_name}; - delete $self->get_attribute_map->{$attribute_name} - if defined $removed_attribute; - $removed_attribute->remove_accessors(); - $removed_attribute->detach_from_class(); + return unless defined $removed_attribute; + delete $self->get_attribute_map->{$attribute_name}; + $removed_attribute->remove_accessors(); + $removed_attribute->detach_from_class(); return $removed_attribute; } @@ -443,6 +569,24 @@ sub compute_all_applicable_attributes { return @attrs; } +sub find_attribute_by_name { + my ($self, $attr_name) = @_; + # keep a record of what we have seen + # here, this will handle all the + # inheritence issues because we are + # using the &class_precedence_list + my %seen_class; + foreach my $class ($self->class_precedence_list()) { + next if $seen_class{$class}; + $seen_class{$class}++; + # fetch the meta-class ... + my $meta = $self->initialize($class); + return $meta->get_attribute($attr_name) + if $meta->has_attribute($attr_name); + } + return; +} + # Class attributes sub add_package_variable { @@ -456,8 +600,17 @@ sub add_package_variable { *{$self->name . '::' . $name} = $initial_value; } else { - eval $sigil . $self->name . '::' . $name; - confess "Could not create package variable ($variable) because : $@" if $@; + my $e; + { + # NOTE: + # We HAVE to localize $@ or all + # hell breaks loose. It is not + # good, believe me, not good. + local $@; + eval $sigil . $self->name . '::' . $name; + $e = $@ if $@; + } + confess "Could not create package variable ($variable) because : $e" if $e; } } @@ -475,14 +628,19 @@ sub get_package_variable { (defined $variable && $variable =~ /^[\$\@\%]/) || confess "variable name does not have a sigil"; my ($sigil, $name) = ($variable =~ /^(.)(.*)$/); - no strict 'refs'; - # try to fetch it first,.. see what happens - eval '\\' . $sigil . $self->name . '::' . $name; - confess "Could not get the package variable ($variable) because : $@" if $@; + my ($ref, $e); + { + # NOTE: + # We HAVE to localize $@ or all + # hell breaks loose. It is not + # good, believe me, not good. + local $@; + $ref = eval '\\' . $sigil . $self->name . '::' . $name; + $e = $@ if $@; + } + confess "Could not get the package variable ($variable) because : $e" if $e; # if we didn't die, then we can return it - # NOTE: - # this is not ideal, better suggestions are welcome - eval '\\' . $sigil . $self->name . '::' . $name; + return $ref; } sub remove_package_variable { @@ -494,34 +652,6 @@ sub remove_package_variable { delete ${$self->name . '::'}{$name}; } -# class mixins - -sub mixin { - my ($self, $mixin) = @_; - $mixin = $self->initialize($mixin) - unless blessed($mixin); - - my @attributes = map { - $mixin->get_attribute($_)->clone() - } $mixin->get_attribute_list; - - my %methods = map { - my $method = $mixin->get_method($_); - (blessed($method) && $method->isa('Class::MOP::Attribute::Accessor')) - ? () : ($_ => $method) - } $mixin->get_method_list; - - foreach my $attr (@attributes) { - $self->add_attribute($attr) - unless $self->has_attribute($attr->name); - } - - foreach my $method_name (keys %methods) { - $self->alias_method($method_name => $methods{$method_name}) - unless $self->has_method($method_name); - } -} - 1; __END__ @@ -534,6 +664,9 @@ Class::MOP::Class - Class Meta Object =head1 SYNOPSIS + # assuming that class Foo + # has been defined, you can + # use this for introspection ... # add a method to Foo ... @@ -585,6 +718,21 @@ bootstrap this module by installing a number of attribute meta-objects into it's metaclass. This will allow this class to reap all the benifits of the MOP when subclassing it. +=item B + +This will return an hash of all the metaclass instances that have +been cached by B keyed by the package name. + +=item B + +This will return an array of all the metaclass instances that have +been cached by B. + +=item B + +This will return an array of all the metaclass names that have +been cached by B. + =back =head2 Class construction @@ -609,6 +757,14 @@ C<$package_name> into existence and adding any of the C<$package_version>, C<@superclasses>, C<%methods> and C<%attributes> to it. +=item B ?@superclasses, + methods =E ?%methods, + attributes =E ?%attributes)> + +This will create an anonymous class, it works much like C but +it does not need a C<$package_name>. Instead it will create a suitably +unique package name for you to stash things into. + =item B This initializes and returns returns a B object @@ -639,6 +795,10 @@ to use them or not. =over 4 +=item B + +=item B + =item B This is a convience method for creating a new object of the class, and @@ -669,8 +829,10 @@ attribute meta-object. =item B This is a convience method for cloning an object instance, then -blessing it into the appropriate package. Ideally your class -would call a C this method like so: +blessing it into the appropriate package. This method will call +C, which performs a shallow copy of the object, +see that methods documentation for more details. Ideally your +class would call a C this method like so: sub MyClass::clone { my ($self, %param) = @_; @@ -683,14 +845,20 @@ but that is considered bad style, so we do not do that. =item B This method is a compliment of C (which means if -you override C, you need to override this one too). +you override C, you need to override this one too), +and clones the instance shallowly. -This method will clone the C<$instance> structure created by the -C method, and apply any C<%params> passed to it -to change the attribute values. The structure returned is (like with -C) an unCed HASH reference, it is your -responsibility to then bless this cloned structure into the right -class. +The cloned structure returned is (like with C) an +unCed HASH reference, it is your responsibility to then bless +this cloned structure into the right class (which C will +do for you). + +As of 0.11, this method will clone the C<$instance> structure shallowly, +as opposed to the deep cloning implemented in prior versions. After much +thought, research and discussion, I have decided that anything but basic +shallow cloning is outside the scope of the meta-object protocol. I +think Yuval "nothingmuch" Kogman put it best when he said that cloning +is too I to be part of the MOP. =back @@ -826,6 +994,110 @@ duplicates in it. This is especially useful for things like object initialization and destruction where you only want the method called once, and in the correct order. +=item B + +This will return the first method to match a given C<$method_name> in +the superclasses, this is basically equivalent to calling +C, but it can be dispatched at runtime. + +=back + +=head2 Method Modifiers + +Method modifiers are a concept borrowed from CLOS, in which a method +can be wrapped with I, I and I method modifiers +that will be called everytime the method is called. + +=head3 How method modifiers work? + +Method modifiers work by wrapping the original method and then replacing +it in the classes symbol table. The wrappers will handle calling all the +modifiers in the appropariate orders and preserving the calling context +for the original method. + +Each method modifier serves a particular purpose, which may not be +obvious to users of other method wrapping modules. To start with, the +return values of I and I modifiers are ignored. This is +because thier purpose is B to filter the input and output of the +primary method (this is done with an I modifier). This may seem +like an odd restriction to some, but doing this allows for simple code +to be added at the begining or end of a method call without jeapordizing +the normal functioning of the primary method or placing any extra +responsibility on the code of the modifier. Of course if you have more +complex needs, then use the I modifier, which uses a variation +of continutation passing style to allow for a high degree of flexibility. + +Before and around modifiers are called in last-defined-first-called order, +while after modifiers are called in first-defined-first-called order. So +the call tree might looks something like this: + + before 2 + before 1 + around 2 + around 1 + primary + after 1 + after 2 + +To see examples of using method modifiers, see the following examples +included in the distribution; F, F, +F and F. There is also a +classic CLOS usage example in the test F<017_add_method_modifier.t>. + +=head3 What is the performance impact? + +Of course there is a performance cost associated with method modifiers, +but we have made every effort to make that cost be directly proportional +to the amount of modifier features you utilize. + +The wrapping method does it's best to B do as much work as it +absolutely needs to. In order to do this we have moved some of the +performance costs to set-up time, where they are easier to amortize. + +All this said, my benchmarks have indicated the following: + + simple wrapper with no modifiers 100% slower + simple wrapper with simple before modifier 400% slower + simple wrapper with simple after modifier 450% slower + simple wrapper with simple around modifier 500-550% slower + simple wrapper with all 3 modifiers 1100% slower + +These numbers may seem daunting, but you must remember, every feature +comes with some cost. To put things in perspective, just doing a simple +C which does nothing but extract the name of the method called +and return it costs about 400% over a normal method call. + +=over 4 + +=item B + +This will wrap the method at C<$method_name> and the supplied C<$code> +will be passed the C<@_> arguments, and called before the original +method is called. As specified above, the return value of the I +method modifiers is ignored, and it's ability to modify C<@_> is +fairly limited. If you need to do either of these things, use an +C method modifier. + +=item B + +This will wrap the method at C<$method_name> so that the original +method will be called, it's return values stashed, and then the +supplied C<$code> will be passed the C<@_> arguments, and called. +As specified above, the return value of the I method +modifiers is ignored, and it cannot modify the return values of +the original method. If you need to do either of these things, use an +C method modifier. + +=item B + +This will wrap the method at C<$method_name> so that C<$code> +will be called and passed the original method as an extra argument +at the begining of the C<@_> argument list. This is a variation of +continuation passing style, where the function prepended to C<@_> +can be considered a continuation. It is up to C<$code> if it calls +the original method or not, there is no restriction on what the +C<$code> can or cannot do. + =back =head2 Attributes @@ -897,6 +1169,12 @@ HASH reference like C because all that same information is discoverable through the attribute meta-object itself. +=item B + +This method will traverse the inheritance heirachy and find the +first attribute whose name matches C<$attr_name>, then return it. +It will return undef if nothing is found. + =back =head2 Package Variables @@ -945,4 +1223,4 @@ L This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. -=cut \ No newline at end of file +=cutchistian