vendor/symfony/assetic-bundle/Factory/AssetFactory.php

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<?php

/*
 * This file is part of the Symfony framework.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * This source file is subject to the MIT license that is bundled
 * with this source code in the file LICENSE.
 */

namespace Symfony\Bundle\AsseticBundle\Factory;

use Assetic\Factory\AssetFactory as BaseAssetFactory;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\DependencyInjection\ParameterBag\ParameterBagInterface;
use Symfony\Component\HttpKernel\KernelInterface;

/**
 * Loads asset formulae from the filesystem.
 *
 * @author Kris Wallsmith <kris@symfony.com>
 */
class AssetFactory extends BaseAssetFactory
{
    private $kernel;
    private $container;
    private $parameterBag;

    /**
     * Constructor.
     *
     * @param KernelInterface       $kernel       The kernel is used to parse bundle notation
     * @param ContainerInterface    $container    The container is used to load the managers lazily, thus avoiding a circular dependency
     * @param ParameterBagInterface $parameterBag The container parameter bag
     * @param string                $baseDir      The base directory for relative inputs
     * @param Boolean               $debug        The current debug mode
     */
    public function __construct(KernelInterface $kernel, ContainerInterface $container, ParameterBagInterface $parameterBag, $baseDir, $debug = false)
    {
        $this->kernel = $kernel;
        $this->container = $container;
        $this->parameterBag = $parameterBag;

        parent::__construct($baseDir, $debug);
    }

    /**
     * Adds support for bundle notation file and glob assets and parameter placeholders.
     *
     * FIXME: This is a naive implementation of globs in that it doesn't
     * attempt to support bundle inheritance within the glob pattern itself.
     */
    protected function parseInput($input, array $options = array())
    {
        $input = $this->parameterBag->resolveValue($input);

        // expand bundle notation
        if ('@' == $input[0] && false !== strpos($input, '/')) {
            // use the bundle path as this asset's root