File Coverage

blib/lib/ArrayDataRole/Source/Array.pm

Criterion	Covered	Total	%
statement	33	39	84.6
branch	10	18	55.5
condition			n/a
subroutine	10	11	90.9
pod	0	8	0.0
total	53	76	69.7

package ArrayDataRole::Source::Array;

our $AUTHORITY = 'cpan:PERLANCAR'; # AUTHORITY
our $DATE = '2021-05-03'; # DATE
our $DIST = 'ArrayDataRoles-Standard'; # DIST
our $VERSION = '0.005'; # VERSION

use 5.010001;
use Role::Tiny;
use Role::Tiny::With;
with 'ArrayDataRole::Spec::Basic';

sub new {
    my ($class, %args) = @_;

    my $ary = delete $args{array} or die "Please specify 'array' argument";

    die "Unknown argument(s): ". join(", ", sort keys %args)
        if keys %args;

    bless {
        array => $ary,
        pos => 0,
    }, $class;
}

sub get_next_item {
    my $self = shift;
    die "StopIteration" unless $self->{pos} < @{ $self->{array} };
    $self->{array}->[ $self->{pos}++ ];
}

sub has_next_item {
    my $self = shift;
    $self->{pos} < @{ $self->{array} };
}

sub reset_iterator {
    my $self = shift;
    $self->{pos} = 0;
}

sub get_iterator_pos {
    my $self = shift;
    $self->{pos};
}

sub get_item_count {
    my $self = shift;
    scalar @{ $self->{array} };
}

sub get_item_at_pos {
    my ($self, $pos) = @_;
    if ($pos < 0) {
        die "Out of range" unless -$pos <= @{ $self->{array} };
    } else {
        die "Out of range" unless $pos < @{ $self->{array} };
    }
    $self->{array}->[ $pos ];
}

sub has_item_at_pos {
    my ($self, $pos) = @_;
    if ($pos < 0) {
        return -$pos <= @{ $self->{array} } ? 1:0;
    } else {
        return $pos < @{ $self->{array} } ? 1:0;
    }
}

1;
# ABSTRACT: Get array data from a Perl array

__END__