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package Iterator::Flex::Role::Wrap::Self;
# ABSTRACT: Construct a next() method for a coderef which expects to be passed an object ref
# is this actually used?
use strict;
use warnings;
our $VERSION = '0.18';
use Scalar::Util;
use Iterator::Flex::Utils 'NEXT';
use Role::Tiny;
use experimental 'signatures';
use namespace::clean;
sub _construct_next ( $, $ipar, $ ) {
    # ensure we don't hold any strong references in the subroutine
    my $next = $ipar->{ +NEXT };
    Scalar::Util::weaken $next;
    my $sub;
    $sub = sub { $next->( $sub ) };
    # create a second reference to the subroutine before we weaken $sub,
    # otherwise $sub will lose its contents, as it would be the only
    # reference.
    my $rsub = $sub;
    Scalar::Util::weaken( $sub );
    return $rsub;
}
1;
#
# This file is part of Iterator-Flex
#
# This software is Copyright (c) 2018 by Smithsonian Astrophysical Observatory.
#
# This is free software, licensed under:
#
#   The GNU General Public License, Version 3, June 2007
#
__END__
HideShow 56 lines of Pod
=pod
=for :stopwords Diab Jerius Smithsonian Astrophysical Observatory
=head1 NAME
Iterator::Flex::Role::Wrap::Self - Construct a next() method for a coderef which expects to be passed an object ref
=head1 VERSION
version 0.18
=head1 INTERNALS
=head1 SUPPORT
=head2 Bugs
Please report any bugs or feature requests to bug-iterator-flex@rt.cpan.org  or through the web interface at: L<https://rt.cpan.org/Public/Dist/Display.html?Name=Iterator-Flex>
=head2 Source
Source is available at
  https://gitlab.com/djerius/iterator-flex
and may be cloned from
  https://gitlab.com/djerius/iterator-flex.git
=head1 SEE ALSO
Please see those modules/websites for more information related to this module.
=over 4
=item *
L<Iterator::Flex|Iterator::Flex>
=back
=head1 AUTHOR
Diab Jerius <djerius@cpan.org>
=head1 COPYRIGHT AND LICENSE
This software is Copyright (c) 2018 by Smithsonian Astrophysical Observatory.
This is free software, licensed under:
  The GNU General Public License, Version 3, June 2007
=cut