File Coverage

blib/lib/Class/Property/RO/Lazy.pm

Criterion	Covered	Total	%
statement	17	17	100.0
branch	2	2	100.0
condition			n/a
subroutine	5	5	100.0
pod			n/a
total	24	24	100.0

package Class::Property::RO::Lazy;
use strict; use warnings FATAL => 'all';
use parent 'Class::Property::RO';

sub TIESCALAR
{
    my( $class, $field, $init, $flag_ref ) = @_;
    return bless {
        'field' => $field
        , 'init' => $init
        , 'flag_ref' => $flag_ref
    }, $class;
}

sub FETCH
{
    my( $self ) = @_;

    if( not defined $self->{'flag_ref'}->{$self->{'object'}} )
    {
        $self->{'flag_ref'}->{$self->{'object'}} = $self->{'object'};
        Scalar::Util::weaken($self->{'flag_ref'}->{$self->{'object'}});
        $self->{'object'}->{$self->{'field'}} = $self->{'init'}->($self->{'object'});
    }

    return $self->{'object'}->{$self->{'field'}};
}

1;