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<?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\Bridge\Twig;
@trigger_error('The '.TwigEngine::class.' class is deprecated since version 4.3 and will be removed in 5.0; use \Twig\Environment instead.', E_USER_DEPRECATED);
use Symfony\Component\Templating\EngineInterface;
use Symfony\Component\Templating\StreamingEngineInterface;
use Symfony\Component\Templating\TemplateNameParserInterface;
use Symfony\Component\Templating\TemplateReferenceInterface;
use Twig\Environment;
use Twig\Error\Error;
use Twig\Error\LoaderError;
use Twig\Loader\ExistsLoaderInterface;
use Twig\Template;
/**
* This engine knows how to render Twig templates.
*
* @author Fabien Potencier <fabien@symfony.com>
*
* @deprecated since version 4.3, to be removed in 5.0; use Twig instead.
*/
class TwigEngine implements EngineInterface, StreamingEngineInterface
{
protected $environment;
protected $parser;
public function __construct(Environment $environment, TemplateNameParserInterface $parser)
{
$this->environment = $environment;
$this->parser = $parser;
}
/**
* {@inheritdoc}
*
* It also supports Template as name parameter.
*
* @throws Error if something went wrong like a thrown exception while rendering the template
*/
public function render($name, array $parameters = [])
{
return $this->load($name)->render($parameters);
}
/**
* {@inheritdoc}
*
* It also supports Template as name parameter.
*
* @throws Error if something went wrong like a thrown exception while rendering the template
*/
public function stream($name, array $parameters = [])
{
$this->load($name)->display($parameters);
}
/**
* {@inheritdoc}
*
* It also supports Template as name parameter.
*/
public function exists($name)
{
if ($name instanceof Template) {
return true;
}
$loader = $this->environment->getLoader();
if ($loader instanceof ExistsLoaderInterface || method_exists($loader, 'exists')) {
return $loader->exists((string) $name);
}
try {
// cast possible TemplateReferenceInterface to string because the
// EngineInterface supports them but LoaderInterface does not
$loader->getSourceContext((string) $name)->getCode();
} catch (LoaderError $e) {
return false;
}
return true;
}
/**
* {@inheritdoc}
*
* It also supports Template as name parameter.
*/
public function supports($name)
{
if ($name instanceof Template) {
return true;
}
$template = $this->parser->parse($name);
return 'twig' === $template->get('engine');
}
/**
* Loads the given template.
*
* @param string|TemplateReferenceInterface|Template $name A template name or an instance of
* TemplateReferenceInterface or Template
*
* @return Template
*
* @throws \InvalidArgumentException if the template does not exist
*/
protected function load($name)
{
if ($name instanceof Template) {
return $name;
}
try {
return $this->environment->loadTemplate((string) $name);
} catch (LoaderError $e) {
throw new \InvalidArgumentException($e->getMessage(), $e->getCode(), $e);
}
}
}
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