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<?php
/*
* This file is part of Twig.
*
* (c) Fabien Potencier
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Twig\Util;
use Twig\Environment;
use Twig\Error\SyntaxError;
use Twig\Source;
/**
* @author Fabien Potencier <fabien@symfony.com>
*/
final class DeprecationCollector
{
private $twig;
public function __construct(Environment $twig)
{
$this->twig = $twig;
}
/**
* Returns deprecations for templates contained in a directory.
*
* @param string $dir A directory where templates are stored
* @param string $ext Limit the loaded templates by extension
*
* @return array An array of deprecations
*/
public function collectDir($dir, $ext = '.twig')
{
$iterator = new \RegexIterator(
new \RecursiveIteratorIterator(
new \RecursiveDirectoryIterator($dir), \RecursiveIteratorIterator::LEAVES_ONLY
), '{'.preg_quote($ext).'$}'
);
return $this->collect(new TemplateDirIterator($iterator));
}
/**
* Returns deprecations for passed templates.
*
* @param \Traversable $iterator An iterator of templates (where keys are template names and values the contents of the template)
*
* @return array An array of deprecations
*/
public function collect(\Traversable $iterator)
{
$deprecations = [];
set_error_handler(function ($type, $msg) use (&$deprecations) {
if (E_USER_DEPRECATED === $type) {
$deprecations[] = $msg;
}
});
foreach ($iterator as $name => $contents) {
try {
$this->twig->parse($this->twig->tokenize(new Source($contents, $name)));
} catch (SyntaxError $e) {
// ignore templates containing syntax errors
}
}
restore_error_handler();
return $deprecations;
}
}
class_alias('Twig\Util\DeprecationCollector', 'Twig_Util_DeprecationCollector');