annotate vendor/psy/psysh/src/CodeCleaner/LeavePsyshAlonePass.php @ 19:fa3358dc1485 tip

Add ndrum files
author Chris Cannam
date Wed, 28 Aug 2019 13:14:47 +0100
parents 5fb285c0d0e3
children
rev   line source
Chris@13 1 <?php
Chris@13 2
Chris@13 3 /*
Chris@13 4 * This file is part of Psy Shell.
Chris@13 5 *
Chris@13 6 * (c) 2012-2018 Justin Hileman
Chris@13 7 *
Chris@13 8 * For the full copyright and license information, please view the LICENSE
Chris@13 9 * file that was distributed with this source code.
Chris@13 10 */
Chris@13 11
Chris@13 12 namespace Psy\CodeCleaner;
Chris@13 13
Chris@13 14 use PhpParser\Node;
Chris@13 15 use PhpParser\Node\Expr\Variable;
Chris@13 16 use Psy\Exception\RuntimeException;
Chris@13 17
Chris@13 18 /**
Chris@13 19 * Validate that the user input does not reference the `$__psysh__` variable.
Chris@13 20 */
Chris@13 21 class LeavePsyshAlonePass extends CodeCleanerPass
Chris@13 22 {
Chris@13 23 /**
Chris@13 24 * Validate that the user input does not reference the `$__psysh__` variable.
Chris@13 25 *
Chris@13 26 * @throws RuntimeException if the user is messing with $__psysh__
Chris@13 27 *
Chris@13 28 * @param Node $node
Chris@13 29 */
Chris@13 30 public function enterNode(Node $node)
Chris@13 31 {
Chris@13 32 if ($node instanceof Variable && $node->name === '__psysh__') {
Chris@13 33 throw new RuntimeException('Don\'t mess with $__psysh__; bad things will happen');
Chris@13 34 }
Chris@13 35 }
Chris@13 36 }