Attean::IteratorSequence - Iterator implementation backed by zero or more sub-iterators
This document describes Attean::IteratorSequence version 0.028
use v5.14; use Attean; my $iter = Attean::IteratorSequence->new(iterators => [$iter1, $iter2]);
The Attean::IteratorSequence class represents a typed iterator that is backed by zero or more sub-iterators. When iterated over, it will return all the elements of all of its sub-iterators, in order, before returning undef. It conforms to the Attean::API::Iterator role.
The Attean::IteratorSequence constructor requires two named arguments:
An array reference containing zero or more Attean::API::Iterator objects.
A string representing the type of the items that will be returned from the iterator.
Returns the iterator's next item, or undef upon reaching the end of iteration.
push( $iterator )
Adds the new
$iteratorto the end of the array of sub-iterators.
After this call,
$iteratorwill be owned by the IteratorSequence, so making any method calls on
$iteratorafter this point may produce unexpected results.
Please report any bugs or feature requests to through the GitHub web interface at https://github.com/kasei/attean/issues.
Gregory Todd Williams
Copyright (c) 2014--2020 Gregory Todd Williams. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.