Reference

Class::MOP::Overload(3pm)

Overload Meta Object

NAME

Class::MOP::Overload - Overload Meta Object

VERSION

version 2.4001

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 <[email protected]>

•

Dave Rolsky <[email protected]>

•

Jesse Luehrs <[email protected]>

•

Shawn M Moore <[email protected]>

•

יובל קוג'מן (Yuval Kogman) <[email protected]>

•

Karen Etheridge <[email protected]>

•

Florian Ragwitz <[email protected]>

•

Hans Dieter Pearcey <[email protected]>

•

Chris Prather <[email protected]>

•

Matt S Trout <[email protected]>

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.

History