Acme-Array-MaxSize
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lib/Acme/Array/MaxSize.pm view on Meta::CPAN
if ($asked > $max_size{$self}) {
carp 'Array too long';
if ($offset == 0) {
splice @list, 0, $asked - $max_size{$self};
} else {
splice @list, $max_size{$self} - $asked;
}
}
$self->SUPER::SPLICE($offset, $length, @list);
}
=head1 NAME
Acme::Array::MaxSize - Limit the maximal size your arrays can get.
=head1 VERSION
Version 0.04
=cut
our $VERSION = '0.04';
=head1 SYNOPSIS
Your array will never grow bigger over a given limit.
use Acme::Array::MaxSize;
tie my @short, 'Acme::Array::MaxSize', 3;
@short = (1 .. 10);
print "@short"; # 1 2 3
=head1 DETAILS
When adding new elements, if the maximal size is reached, all other
elements are thrown away.
tie my @short, 'Acme::Array::MaxSize', 3;
@short = ('a');
push @short, 'b' .. 'h';
print "@short"; # a b c
Inserting elements at the B<very beginning> behaves differently,
though. Each C<unshift> or C<splice> would insert the maximal possible
number of elements B<at the end> of the inserted list:
tie my @short, 'Acme::Array::MaxSize', 3;
@short = ('a');
unshift @short, 'b' .. 'h';
print "@short"; # g h a
=head1 AUTHOR
E. Choroba, C<< <choroba at cpan.org> >>
=head1 BUGS
Please report any bugs or feature requests to the GitHub repository
L<https://github.com/choroba/Acme-Array-MaxSize/issues>, or
C<bug-acme-array-maxsize at rt.cpan.org>, or through the web interface
at
L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Acme-Array-MaxSize>.
I will be notified, and then you'll automatically be notified of
progress on your bug as I make changes.
=head1 SUPPORT
You can find documentation for this module with the perldoc command.
perldoc Acme::Array::MaxSize
You can also look for information at:
=over 4
=item * Meta CPAN
L<https://metacpan.org/pod/Acme::Array::MaxSize>
=item * GitHub Repository
L<https://github.com/choroba/Acme-Array-MaxSize/>
=item * RT: CPAN's request tracker (report bugs here)
L<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Acme-Array-MaxSize>
=item * Search CPAN
L<https://metacpan.org/dist/Acme-Array-MaxSize/>
=back
=head1 ACKNOWLEDGEMENTS
Dedicated to L<Discipulus|http://www.perlmonks.org/?node=Discipulus>.
=head1 LICENSE AND COPYRIGHT
Copyright 2016-2022 E. Choroba.
This program is free software; you can redistribute it and/or modify it
under the terms of the the Artistic License (2.0). You may obtain a
copy of the full license at:
L<http://www.perlfoundation.org/artistic_license_2_0>
Any use, modification, and distribution of the Standard or Modified
Versions is governed by this Artistic License. By using, modifying or
distributing the Package, you accept this license. Do not use, modify,
or distribute the Package, if you do not accept this license.
If your Modified Version has been derived from a Modified Version made
by someone other than you, you are nevertheless required to ensure that
your Modified Version complies with the requirements of this license.
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