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annotate vendor/psy/psysh/src/CodeCleaner/LeavePsyshAlonePass.php @ 19:fa3358dc1485 tip
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author | Chris Cannam |
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date | Wed, 28 Aug 2019 13:14:47 +0100 |
parents | 5fb285c0d0e3 |
children |
rev | line source |
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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 } |