class AsseticExtension

class AsseticExtension extends \Twig_Extension {
  protected $factory;
  protected $functions;
  protected $valueSupplier;
  public function __construct(AssetFactory $factory, $functions = array(), ValueSupplierInterface $valueSupplier = null) {
    $this->factory = $factory;
    $this->functions = array();
    $this->valueSupplier = $valueSupplier;
    foreach ($functions as $function => $options) {
      if (is_integer($function) && is_string($options)) {
        $this->functions[$options] = array(
          'filter' => $options,
        );
      }
      else {
        $this->functions[$function] = $options + array(
          'filter' => $function,
        );
      }
    }
  }
  public function getTokenParsers() {
    return array(
      new AsseticTokenParser($this->factory, 'javascripts', 'js/*.js'),
      new AsseticTokenParser($this->factory, 'stylesheets', 'css/*.css'),
      new AsseticTokenParser($this->factory, 'image', 'images/*', true),
    );
  }
  public function getFunctions() {
    $functions = array();
    foreach ($this->functions as $function => $filter) {
      $functions[$function] = new AsseticFilterFunction($function);
    }
    return $functions;
  }
  public function getGlobals() {
    return array(
      'assetic' => array(
        'debug' => $this->factory
          ->isDebug(),
        'vars' => null !== $this->valueSupplier ? new ValueContainer($this->valueSupplier) : array(),
      ),
    );
  }
  public function getFilterInvoker($function) {
    return new AsseticFilterInvoker($this->factory, $this->functions[$function]);
  }
  public function getName() {
    return 'assetic';
  }

}