File Coverage

blib/lib/WordListRole/FirstNextResetFromEach.pm

Criterion	Covered	Total	%
statement	18	18	100.0
branch	5	6	83.3
condition			n/a
subroutine	5	5	100.0
pod	3	3	100.0
total	31	32	96.8

package WordListRole::FirstNextResetFromEach;

our $AUTHORITY = 'cpan:PERLANCAR'; # AUTHORITY
our $DATE = '2021-02-23'; # DATE
our $DIST = 'WordList'; # DIST
our $VERSION = '0.7.8'; # VERSION

use Role::Tiny;

requires 'each_word';

sub first_word {
    my $self = shift;

    $self->reset_iterator;
    $self->next_word;
}

sub next_word {
    my $self = shift;

    unless ($self->{_all_words}) {
        my @wordlist;
        $self->each_word(sub { push @wordlist, $_[0] });
        $self->{_all_words} = \@wordlist;
    }
    $self->{_iterator_idx} = 0 unless defined $self->{_iterator_idx};

    return undef if $self->{_iterator_idx} > $#{ $self->{_all_words} };
    $self->{_all_words}[ $self->{_iterator_idx}++ ];
}

sub reset_iterator {
    my $self = shift;

    $self->{_iterator_idx} = 0;
}

1;
# ABSTRACT: Provide first_word(), next_word(), reset_iterator(); relies on each_word()

__END__