File Coverage

blib/lib/Petal/Utils/Limit.pm

Criterion	Covered	Total	%
statement	30	30	100.0
branch	2	4	50.0
condition	3	9	33.3
subroutine	7	7	100.0
pod	0	1	0.0
total	42	51	82.3

package Petal::Utils::Limit;

use strict;
use warnings::register;

use Carp;

use base qw( Petal::Utils::Base );

use constant name    => 'limit';
use constant aliases => qw();

our $VERSION  = ((require Petal::Utils), $Petal::Utils::VERSION)[1];
our $REVISION = (split(/ /, ' $Revision: 1.2 $ '))[2];

sub process {
    my $class = shift;
    my $hash  = shift;
    my $args  = shift || confess( "'limit' expects 2 variables (got nothing)!" );

    my @args = $class->split_args( $args );
    my $key = $args[0] || confess( "1st arg to 'limit' should be an array (got nothing)!" );
    my $count = $args[1] || confess( "2nd arg to 'limit' should be a variable (got nothing)!" );

    my $arrayref = $hash->fetch($key);
    $count--;
    # trim $count to max size of array
    $count = $#$arrayref if $#$arrayref < $count;
    return [] if $count < 0;
    return [@{$arrayref}[0 .. $count]];
}

1;

__END__