Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of the Symfony package.
Chris@0:  *
Chris@0:  * (c) Fabien Potencier <fabien@symfony.com>
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Symfony\Component\DependencyInjection;
Chris@0: 
Chris@0: use Symfony\Component\ExpressionLanguage\ExpressionFunction;
Chris@0: use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
Chris@0: 
Chris@0: /**
Chris@0:  * Define some ExpressionLanguage functions.
Chris@0:  *
Chris@0:  * To get a service, use service('request').
Chris@0:  * To get a parameter, use parameter('kernel.debug').
Chris@0:  *
Chris@0:  * @author Fabien Potencier <fabien@symfony.com>
Chris@0:  */
Chris@0: class ExpressionLanguageProvider implements ExpressionFunctionProviderInterface
Chris@0: {
Chris@12:     private $serviceCompiler;
Chris@12: 
Chris@12:     public function __construct(callable $serviceCompiler = null)
Chris@12:     {
Chris@12:         $this->serviceCompiler = $serviceCompiler;
Chris@12:     }
Chris@12: 
Chris@0:     public function getFunctions()
Chris@0:     {
Chris@17:         return [
Chris@12:             new ExpressionFunction('service', $this->serviceCompiler ?: function ($arg) {
Chris@0:                 return sprintf('$this->get(%s)', $arg);
Chris@0:             }, function (array $variables, $value) {
Chris@0:                 return $variables['container']->get($value);
Chris@0:             }),
Chris@0: 
Chris@0:             new ExpressionFunction('parameter', function ($arg) {
Chris@0:                 return sprintf('$this->getParameter(%s)', $arg);
Chris@0:             }, function (array $variables, $value) {
Chris@0:                 return $variables['container']->getParameter($value);
Chris@0:             }),
Chris@17:         ];
Chris@0:     }
Chris@0: }