ArrayDataRole::Source::Iterator - Get array data from an iterator
This document describes version 0.009 of ArrayDataRole::Source::Iterator (from Perl distribution ArrayDataRoles-Standard), released on 2024-01-15.
package ArrayData::YourArray; use Role::Tiny::With; with 'ArrayDataRole::Source::Iterator'; sub new { my $class = shift; $class->_new( gen_iterator => sub { return sub { ... }; }, ); }
This role retrieves elements from a simplistic iterator (a coderef). When called, the iterator must return a non-undef element or undef to signal that all elements have been iterated.
reset_iterator() will regenerate a new iterator.
reset_iterator()
Note: get_item_at_pos() and has_item_at_pos() are slow (O(n) in worst case) because they iterate. Caching might be added in the future to speed this up.
get_item_at_pos()
has_item_at_pos()
ArrayDataRole::Spec::Basic
Create object. This should be called by a consumer's new. Usage:
new
my $ary = $CLASS->_new(%args);
Arguments:
gen_iterator
Coderef. Required. Must return another coderef which is the iterator.
Please visit the project's homepage at https://metacpan.org/release/ArrayDataRoles-Standard.
Source repository is at https://github.com/perlancar/perl-ArrayDataRoles-Standard.
ArrayData
perlancar <perlancar@cpan.org>
To contribute, you can send patches by email/via RT, or send pull requests on GitHub.
Most of the time, you don't need to build the distribution yourself. You can simply modify the code, then test via:
% prove -l
If you want to build the distribution (e.g. to try to install it locally on your system), you can install Dist::Zilla, Dist::Zilla::PluginBundle::Author::PERLANCAR, Pod::Weaver::PluginBundle::Author::PERLANCAR, and sometimes one or two other Dist::Zilla- and/or Pod::Weaver plugins. Any additional steps required beyond that are considered a bug and can be reported to me.
This software is copyright (c) 2024, 2021 by perlancar <perlancar@cpan.org>.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=ArrayDataRoles-Standard
When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.
To install ArrayDataRoles::Standard, copy and paste the appropriate command in to your terminal.
cpanm
cpanm ArrayDataRoles::Standard
CPAN shell
perl -MCPAN -e shell install ArrayDataRoles::Standard
For more information on module installation, please visit the detailed CPAN module installation guide.