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Edit File : EmptyArrayDimFetchPass.php \| Size : 1.25 KB
<?php /* * This file is part of Psy Shell. * * (c) 2012-2020 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\ArrayDimFetch; use PhpParser\Node\Expr\Assign; use Psy\Exception\FatalErrorException; /* * Validate empty brackets are only used for assignment. / class EmptyArrayDimFetchPass extends CodeCleanerPass { const EXCEPTION_MESSAGE = 'Cannot use [] for reading'; private $theseOnesAreFine = []; public function beforeTraverse(array $nodes) { $this->theseOnesAreFine = []; } /* * @throws FatalErrorException if the user used empty empty array dim fetch outside of assignment * * @param Node $node */ public function enterNode(Node $node) { if ($node instanceof Assign && $node->var instanceof ArrayDimFetch) { $this->theseOnesAreFine[] = $node->var; } if ($node instanceof ArrayDimFetch && $node->dim === null) { if (!\in_array($node, $this->theseOnesAreFine)) { throw new FatalErrorException(self::EXCEPTION_MESSAGE, $node->getLine()); } } } } Back

Edit File : EmptyArrayDimFetchPass.php | Size : 1.25 KB

<?php

/*
 * This file is part of Psy Shell.
 *
 * (c) 2012-2020 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\ArrayDimFetch;
use PhpParser\Node\Expr\Assign;
use Psy\Exception\FatalErrorException;

/**
 * Validate empty brackets are only used for assignment.
 */
class EmptyArrayDimFetchPass extends CodeCleanerPass
{
    const EXCEPTION_MESSAGE = 'Cannot use [] for reading';

private $theseOnesAreFine = [];

public function beforeTraverse(array $nodes)
    {
        $this->theseOnesAreFine = [];
    }

/**
     * @throws FatalErrorException if the user used empty empty array dim fetch outside of assignment
     *
     * @param Node $node
     */
    public function enterNode(Node $node)
    {
        if ($node instanceof Assign && $node->var instanceof ArrayDimFetch) {
            $this->theseOnesAreFine[] = $node->var;
        }

if ($node instanceof ArrayDimFetch && $node->dim === null) {
            if (!\in_array($node, $this->theseOnesAreFine)) {
                throw new FatalErrorException(self::EXCEPTION_MESSAGE, $node->getLine());
            }
        }
    }
}

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