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📁 ..
📄 AbstractClassPass.php(2.33 KB)
📄 AssignThisVariablePass.php(1.09 KB)
📄 CallTimePassByReferencePass.php(1.57 KB)
📄 CalledClassPass.php(2.69 KB)
📄 CodeCleanerPass.php(415 B)
📄 EmptyArrayDimFetchPass.php(1.99 KB)
📄 ExitPass.php(859 B)
📄 FinalClassPass.php(1.75 KB)
📄 FunctionContextPass.php(1.52 KB)
📄 FunctionReturnInWriteContextPass.php(2.69 KB)
📄 ImplicitReturnPass.php(4.12 KB)
📄 IssetPass.php(1.37 KB)
📄 LabelContextPass.php(2.55 KB)
📄 LeavePsyshAlonePass.php(992 B)
📄 ListPass.php(2.81 KB)
📄 LoopContextPass.php(3.95 KB)
📄 MagicConstantsPass.php(1.04 KB)
📄 NamespaceAwarePass.php(2.29 KB)
📄 NamespacePass.php(2.78 KB)
📄 NoReturnValue.php(828 B)
📄 PassableByReferencePass.php(4.48 KB)
📄 RequirePass.php(4.78 KB)
📄 ReturnTypePass.php(3.63 KB)
📄 StrictTypesPass.php(3.11 KB)
📄 UseStatementPass.php(4.66 KB)
📄 ValidClassNamePass.php(9.17 KB)
📄 ValidConstructorPass.php(4.03 KB)
📄 ValidFunctionNamePass.php(2.37 KB)

Editing: ListPass.php

<?php

/*
 * This file is part of Psy Shell.
 *
 * (c) 2012-2023 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\ArrayItem;
use PhpParser\Node\Expr\Array_;
use PhpParser\Node\Expr\ArrayDimFetch;
// @todo Drop PhpParser\Node\Expr\ArrayItem once we drop support for PHP-Parser 4.x
use PhpParser\Node\Expr\ArrayItem as LegacyArrayItem;
use PhpParser\Node\Expr\Assign;
use PhpParser\Node\Expr\FuncCall;
use PhpParser\Node\Expr\List_;
use PhpParser\Node\Expr\MethodCall;
use PhpParser\Node\Expr\PropertyFetch;
use PhpParser\Node\Expr\Variable;
use Psy\Exception\ParseErrorException;

/**
 * Validate that the list assignment.
 */
class ListPass extends CodeCleanerPass
{
    /**
     * Validate use of list assignment.
     *
     * @throws ParseErrorException if the user used empty with anything but a variable
     *
     * @param Node $node
     *
     * @return int|Node|null Replacement node (or special return value)
     */
    public function enterNode(Node $node)
    {
        if (!$node instanceof Assign) {
            return;
        }

if (!$node->var instanceof Array_ && !$node->var instanceof List_) {
            return;
        }

// Polyfill for PHP-Parser 2.x
        $items = isset($node->var->items) ? $node->var->items : $node->var->vars;

if ($items === [] || $items === [null]) {
            throw new ParseErrorException('Cannot use empty list', ['startLine' => $node->var->getStartLine(), 'endLine' => $node->var->getEndLine()]);
        }

$itemFound = false;
        foreach ($items as $item) {
            if ($item === null) {
                continue;
            }

$itemFound = true;

if (!self::isValidArrayItem($item)) {
                $msg = 'Assignments can only happen to writable values';
                throw new ParseErrorException($msg, ['startLine' => $item->getStartLine(), 'endLine' => $item->getEndLine()]);
            }
        }

if (!$itemFound) {
            throw new ParseErrorException('Cannot use empty list');
        }
    }

/**
     * Validate whether a given item in an array is valid for short assignment.
     *
     * @param Node $item
     */
    private static function isValidArrayItem(Node $item): bool
    {
        $value = ($item instanceof ArrayItem || $item instanceof LegacyArrayItem) ? $item->value : $item;

while ($value instanceof ArrayDimFetch || $value instanceof PropertyFetch) {
            $value = $value->var;
        }

// We just kind of give up if it's a method call. We can't tell if it's
        // valid via static analysis.
        return $value instanceof Variable || $value instanceof MethodCall || $value instanceof FuncCall;
    }
}

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