Class::MOP::Overload(3)

NAME
Class::MOP::Overload - Overload Meta Object

VERSION
version 2.2009

SYNOPSIS
    my $meta     = Class->meta;
    my $overload = $meta->get_overloaded_operator('+');

    if ( $overload->has_method_name ) {
        print 'Method for + is ', $overload->method_name, "\n";
    }
    else {
        print 'Overloading for + is implemented by ',
            $overload->coderef_name, " sub\n";
    }

DESCRIPTION
This class provides meta information for overloading in classes and roles.

INHERITANCE
"Class::MOP::Overload" is a subclass of Class::MOP::Object.

METHODS

  Class::MOP::Overload->new(%options)
This method creates a new "Class::MOP::Overload" object. It accepts a number of options:

•   operator

    This is a string that matches an operator known by the overload module, such as "" or "+". This is required.

•   method_name

    The name of the method which implements the overloading. Note that this does not need to actually correspond to a real method, since it's okay to declare a not-yet-implemented overloading.

    Either this or the "coderef" option must be passed.

•   method

    A Class::MOP::Method object for the method which implements the overloading.

    This is optional.

•   coderef

    A coderef which implements the overloading.

    Either this or the "method_name" option must be passed.

•   coderef_package

    The package where the coderef was defined.

    This is required if "coderef" is passed.

•   coderef_name

    The name of the coderef. This can be "__ANON__".

    This is required if "coderef" is passed.

•   associated_metaclass

    A Class::MOP::Module object for the associated class or role.

    This is optional.

  $overload->operator
Returns the operator for this overload object.

  $overload->method_name
Returns the method name that implements overloading, if it has one.

  $overload->has_method_name
Returns true if the object has a method name.

  $overload->method
Returns the Class::MOP::Method that implements overloading, if it has one.

  $overload->has_method
Returns true if the object has a method.

  $overload->coderef
Returns the coderef that implements overloading, if it has one.

  $overload->has_coderef
Returns true if the object has a coderef.

  $overload->coderef_package
Returns the package for the coderef that implements overloading, if it has one.

  $overload->has_coderef
Returns true if the object has a coderef package.

  $overload->coderef_name
Returns the sub name for the coderef that implements overloading, if it has one.

  $overload->has_coderef_name
Returns true if the object has a coderef name.

  $overload->is_anonymous
Returns true if the overloading is implemented by an anonymous coderef.

  $overload->associated_metaclass
Returns the Class::MOP::Module (class or role) that is associated with the overload object.

  $overload->clone
Clones the overloading object, setting "original_overload" in the process.

  $overload->original_overload
For cloned objects, this returns the Class::MOP::Overload object from which they were cloned. This can be used to determine the source of an overloading in a class that came from a role, for example.

AUTHORS

•   Stevan Little <stevan.little@iinteractive.com>

•   Dave Rolsky <autarch@urth.org>

•   Jesse Luehrs <doy@tozt.net>

•   Shawn M Moore <code@sartak.org>

•   יובל קוג'מן (Yuval Kogman) <nothingmuch@woobling.org>

•   Karen Etheridge <ether@cpan.org>

•   Florian Ragwitz <rafl@debian.org>

•   Hans Dieter Pearcey <hdp@weftsoar.net>

•   Chris Prather <chris@prather.org>

•   Matt S Trout <mst@shadowcat.co.uk>

COPYRIGHT AND LICENSE
This software is copyright (c) 2006 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.