4 * This file is part of Psy Shell.
6 * (c) 2012-2017 Justin Hileman
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
12 namespace Psy\CodeCleaner;
15 use PhpParser\Node\Expr\ConstFetch;
16 use PhpParser\Node\Expr\Instanceof_;
17 use PhpParser\Node\Scalar;
18 use PhpParser\Node\Scalar\Encapsed;
19 use Psy\Exception\FatalErrorException;
22 * Validate that the instanceof statement does not receive a scalar value or a non-class constant.
24 * @author Martin HasoĊ <martin.hason@gmail.com>
26 class InstanceOfPass extends CodeCleanerPass
28 const EXCEPTION_MSG = 'instanceof expects an object instance, constant given';
31 * Validate that the instanceof statement does not receive a scalar value or a non-class constant.
33 * @throws FatalErrorException if a scalar or a non-class constant is given
37 public function enterNode(Node $node)
39 if (!$node instanceof Instanceof_) {
43 if (($node->expr instanceof Scalar && !$node->expr instanceof Encapsed) || $node->expr instanceof ConstFetch) {
44 throw new FatalErrorException(self::EXCEPTION_MSG, 0, E_ERROR, null, $node->getLine());