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