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<?php
declare(strict_types = 1);
namespace hanneskod\yaysondb\Expression\Set;
use hanneskod\yaysondb\Expression\ExpressionInterface;
use hanneskod\yaysondb\Expression\Set;
/**
* Expression must evaluate to true for exact numer of items in list
*/
class ListExactly extends Set
{
* @var int Target count
private $count;
* Set target count
*
* @param int $count
* @param ExpressionInterface $expr
public function __construct(int $count, ExpressionInterface $expr)
$this->count = $count;
parent::__construct($expr);
}
public function evaluate($list): bool
if (!is_array($list)) {
return false;
$count = 0;
foreach ($list as $item) {
if ($this->expr->evaluate($item)) {
$count++;
return $count == $this->count;
hanneskod /
yaysondb
