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view vendor/psy/psysh/src/CodeCleaner/InstanceOfPass.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 |
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<?php /* * This file is part of Psy Shell. * * (c) 2012-2018 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\ConstFetch; use PhpParser\Node\Expr\Instanceof_; use PhpParser\Node\Scalar; use PhpParser\Node\Scalar\Encapsed; use Psy\Exception\FatalErrorException; /** * Validate that the instanceof statement does not receive a scalar value or a non-class constant. * * @author Martin HasoĊ <martin.hason@gmail.com> */ class InstanceOfPass extends CodeCleanerPass { const EXCEPTION_MSG = 'instanceof expects an object instance, constant given'; /** * Validate that the instanceof statement does not receive a scalar value or a non-class constant. * * @throws FatalErrorException if a scalar or a non-class constant is given * * @param Node $node */ public function enterNode(Node $node) { if (!$node instanceof Instanceof_) { return; } if (($node->expr instanceof Scalar && !$node->expr instanceof Encapsed) || $node->expr instanceof ConstFetch) { throw new FatalErrorException(self::EXCEPTION_MSG, 0, E_ERROR, null, $node->getLine()); } } }