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<?php
declare(strict_types=1);
namespace EventSauce\EventSourcing\Upcasting;
use Generator;
class UpcasterChain implements Upcaster
{
/**
* @var Upcaster[]
*/
private $upcasters;
public function __construct(Upcaster ...$upcasters)
$this->upcasters = $upcasters;
}
public function upcast(array $message): Generator
$messages = [$message];
foreach ($this->upcasters as $upcaster) {
$messages = $this->invokeUpcaster($messages, $upcaster);
yield from $messages;
private function invokeUpcaster(iterable $messages, Upcaster $upcaster): Generator
foreach ($messages as $message) {
yield from $upcaster->upcast($message);
EventSaucePHP /
EventSauce
