NAME

Attean::CodeIterator - Iterator implementation backed by a generator function

VERSION

This document describes Attean::CodeIterator version 0.033

SYNOPSIS

  use v5.14;
  use Attean;
  my $iter = Attean::CodeIterator->new(
    generator => sub {
      state $value = 0;
      Attean::Literal->new(++$value)
    },
    item_type => 'Attean::API::Term',
  );
  
  say $iter->next->value; # 1
  say $iter->next->value; # 2
  say $iter->next->value; # 3

DESCRIPTION

The Attean::CodeIterator class represents a typed iterator. It conforms to the Attean::API::Iterator role.

The Attean::CodeIterator constructor requires two named arguments:

generator

A code reference that when called will return either the iterator's next item, or undef upon reaching the end of iteration.

item_type

A Type::Tiny object representing the type of the items that will be returned from the iterator.

METHODS

"next"

Returns the iterator's next item, or undef upon reaching the end of iteration.

BUGS

Please report any bugs or feature requests to through the GitHub web interface at <https://github.com/kasei/attean/issues>.

SEE ALSO

AUTHOR

Gregory Todd Williams "<gwilliams@cpan.org>"

COPYRIGHT

Copyright (c) 2014--2022 Gregory Todd Williams. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.