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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.
*/
/**
* @author Fabien Potencier <fabien@symfony.com>
*
* @final
*/
class Twig_Util_DeprecationCollector
{
private $twig;
private $deprecations;
public function __construct(Twig_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 $this->collect(new Twig_Util_TemplateDirIterator($iterator));
}
/**
* Returns deprecations for passed templates.
*
* @param Iterator $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(Iterator $iterator)
{
$this->deprecations = array();
set_error_handler(array($this, 'errorHandler'));
foreach ($iterator as $name => $contents) {
try {
$this->twig->parse($this->twig->tokenize($contents, $name));
} catch (Twig_Error_Syntax $e) {
// ignore templates containing syntax errors
}
}
restore_error_handler();
$deprecations = $this->deprecations;
$this->deprecations = array();
return $deprecations;
}
/**
* @internal
*/
public function errorHandler($type, $msg)
{
if (E_USER_DEPRECATED === $type) {
$this->deprecations[] = $msg;
}
}
}