1Class::MOP::Package(3)User Contributed Perl DocumentationClass::MOP::Package(3)
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6 Class::MOP::Package - Package Meta Object
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9 The Package Protocol provides an abstraction of a Perl 5 package. A
10 package is basically namespace, and this module provides methods for
11 looking at and changing that namespace's symbol table.
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14 Class::MOP::Package->initialize($package_name)
15 This method creates a new "Class::MOP::Package" instance which
16 represents specified package. If an existing metaclass object
17 exists for the package, that will be returned instead.
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19 Class::MOP::Package->reinitialize($package)
20 This method forcibly removes any existing metaclass for the package
21 before calling "initialize". In contrast to "initialize", you may
22 also pass an existing "Class::MOP::Package" instance instead of
23 just a package name as $package.
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25 Do not call this unless you know what you are doing.
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27 $metapackage->name
28 This is returns the package's name, as passed to the constructor.
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30 $metapackage->namespace
31 This returns a hash reference to the package's symbol table. The
32 keys are symbol names and the values are typeglob references.
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34 $metapackage->add_package_symbol($variable_name, $initial_value)
35 This method accepts a variable name and an optional initial value.
36 The $variable_name must contain a leading sigil.
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38 This method creates the variable in the package's symbol table, and
39 sets it to the initial value if one was provided.
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41 $metapackage->get_package_symbol($variable_name)
42 Given a variable name, this method returns the variable as a
43 reference or undef if it does not exist. The $variable_name must
44 contain a leading sigil.
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46 $metapackage->has_package_symbol($variable_name)
47 Returns true if there is a package variable defined for
48 $variable_name. The $variable_name must contain a leading sigil.
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50 $metapackage->remove_package_symbol($variable_name)
51 This will remove the package variable specified $variable_name. The
52 $variable_name must contain a leading sigil.
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54 $metapackage->remove_package_glob($glob_name)
55 Given the name of a glob, this will remove that glob from the
56 package's symbol table. Glob names do not include a sigil. Removing
57 the glob removes all variables and subroutines with the specified
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60 $metapackage->list_all_package_symbols($type_filter)
61 This will list all the glob names associated with the current
62 package. These names do not have leading sigils.
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64 You can provide an optional type filter, which should be one of
65 'SCALAR', 'ARRAY', 'HASH', or 'CODE'.
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67 $metapackage->get_all_package_symbols($type_filter)
68 This works much like "list_all_package_symbols", but it returns a
69 hash reference. The keys are glob names and the values are
70 references to the value for that name.
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72 Class::MOP::Package->meta
73 This will return a Class::MOP::Class instance for this class.
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76 Stevan Little <stevan@iinteractive.com>
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79 Copyright 2006-2010 by Infinity Interactive, Inc.
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81 <http://www.iinteractive.com>
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83 This library is free software; you can redistribute it and/or modify it
84 under the same terms as Perl itself.
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88perl v5.12.2 2010-09-13 Class::MOP::Package(3)