/usr/share/perl5/Data/Stream/Bulk/Nil.pm is in libdata-stream-bulk-perl 0.11-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 | package Data::Stream::Bulk::Nil;
BEGIN {
$Data::Stream::Bulk::Nil::AUTHORITY = 'cpan:NUFFIN';
}
{
$Data::Stream::Bulk::Nil::VERSION = '0.11';
}
use Moose;
# ABSTRACT: An empty L<Data::Stream::Bulk> iterator
use namespace::clean -except => 'meta';
with qw(Data::Stream::Bulk) => { -excludes => [qw/loaded filter list_cat all items/] };
sub items { return () }
sub all { return () }
sub next { undef }
sub is_done { 1 }
sub list_cat {
my ( $self, $head, @rest ) = @_;
return () unless $head;
return $head->list_cat(@rest);
}
sub filter { return $_[0] };
sub loaded { 1 }
__PACKAGE__->meta->make_immutable;
__PACKAGE__;
=pod
=head1 NAME
Data::Stream::Bulk::Nil - An empty L<Data::Stream::Bulk> iterator
=head1 VERSION
version 0.11
=head1 SYNOPSIS
return Data::Stream::Bulk::Nil->new; # empty set
=head1 DESCRIPTION
This iterator can be used to return the empty resultset.
=head1 METHODS
=over 4
=item is_done
Always returns true.
=item next
Always returns undef.
=item items
=item all
Always returns the empty list.
=item list_cat
Skips $self
=item filter
Returns $self
=item loaded
Returns true.
=back
=head1 AUTHOR
Yuval Kogman <nothingmuch@woobling.org>
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2012 by Yuval Kogman.
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
__END__
|