75 lines
1.8 KiB
PHP
75 lines
1.8 KiB
PHP
|
<?php
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This file is part of the Symfony package.
|
||
|
|
*
|
||
|
|
* (c) Fabien Potencier <fabien@symfony.com>
|
||
|
|
*
|
||
|
|
* 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\Exception\InvalidArgumentException;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* HelperSet represents a set of helpers to be used with a command.
|
||
|
|
*
|
||
|
|
* @author Fabien Potencier <fabien@symfony.com>
|
||
|
|
*
|
||
|
|
* @implements \IteratorAggregate<string, HelperInterface>
|
||
|
|
*/
|
||
|
|
class HelperSet implements \IteratorAggregate
|
||
|
|
{
|
||
|
|
/** @var array<string, HelperInterface> */
|
||
|
|
private array $helpers = [];
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param HelperInterface[] $helpers
|
||
|
|
*/
|
||
|
|
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): void
|
||
|
|
{
|
||
|
|
$this->helpers[$helper->getName()] = $helper;
|
||
|
|
if (null !== $alias) {
|
||
|
|
$this->helpers[$alias] = $helper;
|
||
|
|
}
|
||
|
|
|
||
|
|
$helper->setHelperSet($this);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns true if the helper if defined.
|
||
|
|
*/
|
||
|
|
public function has(string $name): bool
|
||
|
|
{
|
||
|
|
return isset($this->helpers[$name]);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets a helper value.
|
||
|
|
*
|
||
|
|
* @throws InvalidArgumentException if the helper is not defined
|
||
|
|
*/
|
||
|
|
public function get(string $name): HelperInterface
|
||
|
|
{
|
||
|
|
if (!$this->has($name)) {
|
||
|
|
throw new InvalidArgumentException(\sprintf('The helper "%s" is not defined.', $name));
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->helpers[$name];
|
||
|
|
}
|
||
|
|
|
||
|
|
public function getIterator(): \Traversable
|
||
|
|
{
|
||
|
|
return new \ArrayIterator($this->helpers);
|
||
|
|
}
|
||
|
|
}
|