vendor/kriswallsmith/assetic/src/Assetic/Factory/LazyAssetManager.php

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<?php

/*
 * This file is part of the Assetic package, an OpenSky project.
 *
 * (c) 2010-2014 OpenSky Project Inc
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Assetic\Factory;

use Assetic\Asset\AssetInterface;
use Assetic\AssetManager;
use Assetic\Factory\Loader\FormulaLoaderInterface;
use Assetic\Factory\Resource\ResourceInterface;

/**
 * A lazy asset manager is a composition of a factory and many formula loaders.
 *
 * @author Kris Wallsmith <kris.wallsmith@gmail.com>
 */
class LazyAssetManager extends AssetManager
{
    private $factory;
    private $loaders;
    private $resources;
    private $formulae;
    private $loaded;
    private $loading;

    /**
     * Constructor.
     *
     * @param AssetFactory $factory The asset factory
     * @param array        $loaders An array of loaders indexed by alias
     */
    public function __construct(AssetFactory $factory, $loaders = array())
    {
        $this->factory = $factory;
        $this->loaders = array();
        $this->resources = array();
        $this->formulae = array();
        $this->loaded = false;
        $this->loading = false;

        foreach ($loaders as $alias => $loader) {
            $this->setLoader($alias, $loader);
        }
    }

    /**
     * Adds a loader to the asset manager.
     *
     * @param string                 $alias  An alias for the loader
     * @param FormulaLoaderInterface $loader A loader
     */
    public function setLoader($alias, FormulaLoaderInterface $loader)
    {