error if we have a lazy attr with no default or builder

[gitmo/Moose.git] / lib / Moose / Meta / Method / Accessor / Native / Counter / dec.pm

package Moose::Meta::Method::Accessor::Native::Counter::dec;

use strict;
use warnings;

our $VERSION = '1.19';
$VERSION = eval $VERSION;
our $AUTHORITY = 'cpan:STEVAN';

use Moose::Role;

with 'Moose::Meta::Method::Accessor::Native::Writer' => {
    -excludes => [
        qw(
            _minimum_arguments
            _maximum_arguments
            _optimized_set_new_value
            )
    ]
};

sub _minimum_arguments { 0 }
sub _maximum_arguments { 1 }

sub _potential_value {
    my $self = shift;
    my ($slot_access) = @_;

    return $slot_access . ' - (defined $_[0] ? $_[0] : 1)';
}

sub _optimized_set_new_value {
    my $self = shift;
    my ($inv, $new, $slot_access) = @_;

    return $slot_access . ' -= defined $_[0] ? $_[0] : 1';
}

no Moose::Role;

1;