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<?php declare(strict_types=1);
namespace Stratadox\Parser\Containers;
use Closure;
use Stratadox\Parser\LazyContainer;
use Stratadox\Parser\Parser;
use Stratadox\Parser\Parsers\Limit;
/**
* Limited lazy container
*
* Prevents infinite looping on left-recursion.
*/
final class Limited implements LazyContainer
{
private array $cache = [];
public function __construct(
private LazyContainer $container
) {}
public static function recursion(LazyContainer $container): LazyContainer
return new self($container);
}
public function offsetGet($name): Parser
if (!isset($this->cache[$name])) {
$this->cache[$name] = new Limit($this->container[$name]);
return $this->cache[$name];
public function offsetSet($name, $parser): void
$this->container[$name] = $parser;
public function offsetExists($name): bool
return isset($this->container[$name]);
public function offsetUnset($name): void
unset($this->container[$name]);
public function factory(string $name): Closure
return $this->container->factory($name);
Stratadox /
Parser
