+++ /dev/null
-<?php
-
-/*
- * This file is part of Psy Shell.
- *
- * (c) 2012-2017 Justin Hileman
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Psy\CodeCleaner;
-
-use PhpParser\Node;
-use PhpParser\Node\Expr\Variable;
-use Psy\Exception\RuntimeException;
-
-/**
- * Validate that the user input does not reference the `$__psysh__` variable.
- */
-class LeavePsyshAlonePass extends CodeCleanerPass
-{
- /**
- * Validate that the user input does not reference the `$__psysh__` variable.
- *
- * @throws RuntimeException if the user is messing with $__psysh__
- *
- * @param Node $node
- */
- public function enterNode(Node $node)
- {
- if ($node instanceof Variable && $node->name === '__psysh__') {
- throw new RuntimeException('Don\'t mess with $__psysh__. Bad things will happen.');
- }
- }
-}