�PNG  IHDR��;���IDATx��ܻn�0���K�� �)(�pA��� ���7�LeG{�� �§㻢|��ذaÆ 6lذaÆ 6lذaÆ 6lom��$^�y���ذag�5bÆ 6lذaÆ 6lذa{���� 6lذaÆ �`����}H�Fkm�,�m����Ӫ���ô�ô!� �x�|'ܢ˟;�E:���9�&ᶒ�}�{�v]�n&�6� �h��_��t�ڠ͵-ҫ���Z;��Z$�.�P���k�ž)�!��o���>}l�eQfJ�T��u і���چ��\��X=8��Rن4`Vw�l�>����n�G�^��i�s��"ms�$�u��i��?w�bs[m�6�K4���O���.�4��%����/����b�C%��t ��M�ז� �-l�G6�mrz2���s�%�9��s@���-�k�9�=���)������k�B5����\��+͂�Zsٲ ��Rn��~G���R���C����� �wIcI��n7jJ���hۛNCS|���j0��8y�iHKֶۛ�k�Ɉ+;Sz������L/��F�*\��Ԕ�#"5��m�2��[S��������=�g��n�a�P�e�ғ�L�� lذaÆ 6l�^k��̱aÆ 6lذaÆ 6lذa;���� �_��ذaÆ 6lذaÆ 6lذaÆ ���R���IEND�B` * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Console\Helper; use Symfony\Component\Console\Command\Command; use Symfony\Component\Console\Exception\InvalidArgumentException; /** * HelperSet represents a set of helpers to be used with a command. * * @author Fabien Potencier */ class HelperSet implements \IteratorAggregate { /** * @var Helper[] */ private $helpers = []; private $command; /** * @param Helper[] $helpers An array of helper */ public function __construct(array $helpers = []) { foreach ($helpers as $alias => $helper) { $this->set($helper, \is_int($alias) ? null : $alias); } } public function set(HelperInterface $helper, string $alias = null) { $this->helpers[$helper->getName()] = $helper; if (null !== $alias) { $this->helpers[$alias] = $helper; } $helper->setHelperSet($this); } /** * Returns true if the helper if defined. * * @return bool true if the helper is defined, false otherwise */ public function has(string $name) { return isset($this->helpers[$name]); } /** * Gets a helper value. * * @return HelperInterface The helper instance * * @throws InvalidArgumentException if the helper is not defined */ public function get(string $name) { if (!$this->has($name)) { throw new InvalidArgumentException(sprintf('The helper "%s" is not defined.', $name)); } return $this->helpers[$name]; } public function setCommand(Command $command = null) { $this->command = $command; } /** * Gets the command associated with this helper set. * * @return Command A Command instance */ public function getCommand() { return $this->command; } /** * @return Helper[] */ public function getIterator() { return new \ArrayIterator($this->helpers); } }