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package Moose::Meta::Method::Overridden;
use strict;
use warnings;
our $VERSION = '1.09';
$VERSION = eval $VERSION;
our $AUTHORITY = 'cpan:STEVAN';
use base 'Moose::Meta::Method';
sub new {
my ( $class, %args ) = @_;
# the package can be overridden by roles
# it is really more like body's compilation stash
# this is where we need to override the definition of super() so that the
# body of the code can call the right overridden version
my $super_package = $args{package} || $args{class}->name;
my $name = $args{name};
my $super = $args{class}->find_next_method_by_name($name);
(defined $super)
|| $class->throw_error("You cannot override '$name' because it has no super method", data => $name);
my $super_body = $super->body;
my $method = $args{method};
my $body = sub {
local $Moose::SUPER_PACKAGE = $super_package;
local @Moose::SUPER_ARGS = @_;
local $Moose::SUPER_BODY = $super_body;
return $method->(@_);
};
# FIXME do we need this make sure this works for next::method?
# subname "${super_package}::${name}", $method;
# FIXME store additional attrs
$class->wrap(
$body,
package_name => $args{class}->name,
name => $name
);
}
1;
__END__
=pod
=head1 NAME
Moose::Meta::Method::Overridden - A Moose Method metaclass for overridden methods
=head1 DESCRIPTION
This class implements method overriding logic for the L<Moose>
C<override> keyword.
The overriding subroutine's parent will be invoked explicitly using
the C<super> keyword from the parent class's method definition.
=head1 METHODS
=over 4
=item B<< Moose::Meta::Method::Overridden->new(%options) >>
This constructs a new object. It accepts the following options:
=over 8
=item * class
The metaclass object for the class in which the override is being
declared. This option is required.
=item * name
The name of the method which we are overriding. This method must exist
in one of the class's superclasses. This option is required.
=item * method
The subroutine reference which implements the overriding. This option
is required.
=back
=back
=head1 BUGS
See L<Moose/BUGS> for details on reporting bugs.
=head1 AUTHOR
Yuval Kogman E<lt>nothingmuch@cpan.orgE<gt>
=head1 COPYRIGHT AND LICENSE
Copyright 2006-2010 by Infinity Interactive, Inc.
L<http://www.iinteractive.com>
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
=cut
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