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<?php
namespace RebelCode\Wpra\Core\Data\Collections;
use ArrayIterator;
use Dhii\Output\TemplateInterface;
use Exception;
use LogicException;
use RebelCode\Wpra\Core\Data\AbstractDataSet;
use RebelCode\Wpra\Core\Templates\TwigTemplate;
use Twig\Environment;
use Twig\Error\LoaderError;
/**
* A dataset implementation that acts as a collection for Twig templates.
*
* @since 4.13
*/
class TwigTemplateCollection extends AbstractDataSet
{
/**
* The Twig environment.
*
* @since 4.13
*
* @var Environment
*/
protected $env;
/**
* Constructor.
*
* @since 4.13
*
* @param Environment $env The Twig environment instance.
*/
public function __construct(Environment $env)
{
$this->env = $env;
}
/**
* Creates a template instance.
*
* @since 4.13
*
* @param string $path The path to the Twig file, relative from any registered templates directory.
*
* @return TemplateInterface The template instance.
*/
protected function createTemplate($path)
{
return new TwigTemplate($this->env, $path);
}
/**
* {@inheritdoc}
*
* @since 4.13
*/
protected function get($key)
{
return $this->createTemplate($key);
}
/**
* {@inheritdoc}
*
* @since 4.13
*/
protected function has($key)
{
try {
$this->env->load($key);
} catch (LoaderError $e) {
return false;
} catch (Exception $e) {
// Do not emit runtime or template syntax errors
}
return true;
}
/**
* {@inheritdoc}
*
* @since 4.13
*/
protected function set($key, $value)
{
throw new LogicException(__('Cannot modify Twig templates', 'wprss'));
}
/**
* {@inheritdoc}
*
* @since 4.13
*/
protected function delete($key)
{
throw new LogicException(__('Cannot delete Twig templates', 'wprss'));
}
/**
* {@inheritdoc}
*
* @since 4.13
*/
protected function getIterator()
{
return new ArrayIterator([]);
}
}