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Class::MOP::Package(3)               User Contributed Perl Documentation              Class::MOP::Package(3)



NAME
       Class::MOP::Package - Package Meta Object

VERSION
       version 2.0205

DESCRIPTION
       The Package Protocol provides an abstraction of a Perl 5 package. A package is basically namespace,
       and this module provides methods for looking at and changing that namespace's symbol table.

METHODS
       Class::MOP::Package->initialize($package_name, %options)
           This method creates a new "Class::MOP::Package" instance which represents specified package. If
           an existing metaclass object exists for the package, that will be returned instead. No options
           are valid at the package level.

       Class::MOP::Package->reinitialize($package, %options)
           This method forcibly removes any existing metaclass for the package before calling "initialize".
           In contrast to "initialize", you may also pass an existing "Class::MOP::Package" instance instead
           of just a package name as $package.

           Do not call this unless you know what you are doing.

       Class::MOP::Package->create($package, %options)
           Creates a new "Class::MOP::Package" instance which represents the specified package, and also
           does some initialization of that package. Currently, this just does the same thing as
           "initialize", but is overridden in subclasses, such as "Class::MOP::Class".

       Class::MOP::Package->create_anon(%options)
           Creates a new anonymous package. Valid keys for %options are:

           "weaken"
               If this is true (the default), the instance stored in "Class::MOP"'s metaclass cache will be
               weakened, so that the anonymous package will be garbage collected when the returned instance
               goes out of scope.

       $metapackage->is_anon
           Returns true if the package is an anonymous package.

       $metapackage->name
           This is returns the package's name, as passed to the constructor.

       $metapackage->namespace
           This returns a hash reference to the package's symbol table. The keys are symbol names and the
           values are typeglob references.

       $metapackage->add_package_symbol($variable_name, $initial_value)
           This method accepts a variable name and an optional initial value. The $variable_name must
           contain a leading sigil.

           This method creates the variable in the package's symbol table, and sets it to the initial value
           if one was provided.

       $metapackage->get_package_symbol($variable_name)
           Given a variable name, this method returns the variable as a reference or undef if it does not
           exist. The $variable_name must contain a leading sigil.

       $metapackage->get_or_add_package_symbol($variable_name)
           Given a variable name, this method returns the variable as a reference.  If it does not exist, a
           default value will be generated if possible. The $variable_name must contain a leading sigil.

       $metapackage->has_package_symbol($variable_name)
           Returns true if there is a package variable defined for $variable_name. The $variable_name must
           contain a leading sigil.

       $metapackage->remove_package_symbol($variable_name)
           This will remove the package variable specified $variable_name. The $variable_name must contain a
           leading sigil.

       $metapackage->remove_package_glob($glob_name)
           Given the name of a glob, this will remove that glob from the package's symbol table. Glob names
           do not include a sigil. Removing the glob removes all variables and subroutines with the
           specified name.

       $metapackage->list_all_package_symbols($type_filter)
           This will list all the glob names associated with the current package. These names do not have
           leading sigils.

           You can provide an optional type filter, which should be one of 'SCALAR', 'ARRAY', 'HASH', or
           'CODE'.

       $metapackage->get_all_package_symbols($type_filter)
           This works much like "list_all_package_symbols", but it returns a hash reference. The keys are
           glob names and the values are references to the value for that name.

       Class::MOP::Package->meta
           This will return a Class::MOP::Class instance for this class.

AUTHOR
       Stevan Little <stevan@iinteractive.com>

COPYRIGHT AND LICENSE
       This software is copyright (c) 2011 by Infinity Interactive, Inc..

       This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5
       programming language system itself.



perl v5.12.5                                     2011-09-06                           Class::MOP::Package(3)