Man pages sections > man3 > Class::MOP::Overload

Class::MOP::Overload - Overload Meta Object

Class::MOP::Overload(3pm) User Contributed Perl Documentation Class::MOP::Overload(3pm)

NAME

Class::MOP::Overload - Overload Meta Object

VERSION

version 2.1807

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>
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.
2017-07-22 perl v5.26.0