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<?php declare(strict_types=1);
namespace hiqdev\php\billing\product\invoice;
class RepresentationUniquenessGuard
{
private static array $keys = [];
public function ensureUnique(RepresentationInterface $representation): void
$key = $this->generateKey($representation);
if (isset(self::$keys[$key])) {
throw new DuplicateRepresentationException("Duplicate '$key' representation");
}
self::$keys[$key] = true;
private function generateKey(RepresentationInterface $representation): string
$reflect = new \ReflectionClass($representation);
return $reflect->getShortName() . ':' . $representation->getType()->getName();
hiqdev /
php-billing
