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lib/Acme/Array/MaxSize.pm  view on Meta::CPAN

use parent 'Tie::Array';
use Carp;

my %max_size;
my $last_index = sub { $max_size{+shift} - 1 };


sub TIEARRAY {
    my ($class, $max_size) = @_;
    my $self = bless [], $class;
    $max_size{$self} = $max_size;
    return $self
}

sub STORE {
    my ($self, $index, $value) = @_;
    if ($index > $self->$last_index) {
        carp 'Array too long';
        return
    }