Class::MOP::MiniTrait - Extremely limited trait application


Class-MOP documentation Contained in the Class-MOP distribution.

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NAME

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Class::MOP::MiniTrait - Extremely limited trait application

DESCRIPTION

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This package provides a single function, apply, which does a half-assed job of applying a trait to a class. It exists solely for use inside Class::MOP and Moose core classes.

AUTHORS

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Stevan Little <stevan@iinteractive.com>

COPYRIGHT AND LICENSE

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Class-MOP documentation Contained in the Class-MOP distribution.

package Class::MOP::MiniTrait;

use strict;
use warnings;

our $VERSION = '1.12';
$VERSION = eval $VERSION;
our $AUTHORITY = 'cpan:STEVAN';

sub apply {
    my ( $to_class, $trait ) = @_;

    for ( grep { !ref } $to_class, $trait ) {
        Class::MOP::load_class($_);
        $_ = Class::MOP::Class->initialize($_);
    }

    for my $meth ( $trait->get_all_methods ) {
        my $meth_name = $meth->name;

        if ( $to_class->find_method_by_name($meth_name) ) {
            $to_class->add_around_method_modifier( $meth_name, $meth->body );
        }
        else {
            $to_class->add_method( $meth_name, $meth->clone );
        }
    }
}

# We can't load this with use, since it may be loaded and used from Class::MOP
# (via CMOP::Class, etc). However, if for some reason this module is loaded
# _without_ first loading Class::MOP we need to require Class::MOP so we can
# use it and CMOP::Class.
require Class::MOP;

1;

__END__