SLOYD / Alt-Data-Frame-ButMore-0.004_004 / lib / Data / Frame / Autobox / Array.pm 

            

              
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package Data::Frame::Autobox::Array;
# ABSTRACT: Additional Array role for Moose::Autobox
use 5.016;
use Moose::Role;
use Function::Parameters;
use List::AllUtils;
use POSIX qw(ceil);
use namespace::autoclean;
method isempty() { @{$self} == 0 }
method uniq() { [ List::AllUtils::uniq(@{$self}) ] }
method set($index, $value) { 
    $self->[$index] = $value;
}
method repeat($n) {
    return [ (@$self) x $n ];
}
method repeat_to_length($l) {
    return $self if @$self == 0;
    my $x = repeat($self, ceil($l / @$self));
    return [ @$x[0 .. $l-1] ];
}
method copy() { [ @{$self} ] }
method intersect ( $other ) { 
    my %hash = map { $_ => 1 } @$self;
    return [ grep { exists $hash{$_} } @$other ];
}
method union ($other) {
    return [ List::AllUtils::uniq( @$self, @$other ) ];
}
method setdiff ($other) {
    my %hash = map { $_ => 1 } @$other;
    return [ grep { not exists( $hash{$_} ) } @$self ];
}
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
Data::Frame::Autobox::Array - Additional Array role for Moose::Autobox
=head1 VERSION
version 0.004_004
=head1 SYNOPSIS
    use Moose::Autobox;
     
    Moose::Autobox->mixin_additional_role(
        ARRAY => "Data::Frame::Autobox::Array"
    );
    [ 1 .. 5 ]->isempty;    # false
=head1 DESCRIPTION
This is an additional Array role for Moose::Autobox, used by Data::Frame.
=head1 METHODS
=head2 isempty
    my $isempty = $array->isempty;
Returns a boolean value for if the array ref is empty.
=head2 uniq
    my $uniq_array = $array->uniq;
=head2 set($idx, $value)
    $array->set($idx, $value);
This is same as the C<put> method of Moose::Autobox::Array.
=head2 repeat
    my $new_array = $array->repeat($n);
Repeat for C<$n> times.
=head2 repeat_to_length
    my $new_array = $array->repeat_to_length($l);
Repeat to get the length of C<$l>. 
=head2 copy
Shallow copy.
=head2 intersect
    my $new_ary = $array->intersect($other)
=head2 union
    my $new_array = $array->union($other)
=head2
    my $new_array = $array->setdiff($other)
=head1 SEE ALSO
L<Moose::Autobox>,
L<Moose::Autobox::Array>
=head1 AUTHORS
=over 4
=item *
Zakariyya Mughal <zmughal@cpan.org>
=item *
Stephan Loyd <sloyd@cpan.org>
=back
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2014, 2019 by Zakariyya Mughal, Stephan Loyd.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut