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Revision Autor Zeilennr. Zeile
148 lars 1 
<?php
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/*
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 * This file is part of Psy Shell.
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 *
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 * (c) 2012-2023 Justin Hileman
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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namespace Psy\CodeCleaner;
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use PhpParser\Node;
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use PhpParser\Node\Expr\FuncCall;
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use PhpParser\Node\Expr\MethodCall;
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use PhpParser\Node\Expr\StaticCall;
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use PhpParser\Node\VariadicPlaceholder;
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use Psy\Exception\FatalErrorException;
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/**
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 * Validate that the user did not use the call-time pass-by-reference that causes a fatal error.
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 *
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 * As of PHP 5.4.0, call-time pass-by-reference was removed, so using it will raise a fatal error.
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 *
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 * @author Martin Hasoň <martin.hason@gmail.com>
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 */
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class CallTimePassByReferencePass extends CodeCleanerPass
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{
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    const EXCEPTION_MESSAGE = 'Call-time pass-by-reference has been removed';
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    /**
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     * Validate of use call-time pass-by-reference.
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     *
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     * @throws FatalErrorException if the user used call-time pass-by-reference
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     *
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     * @param Node $node
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     *
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     * @return int|Node|null Replacement node (or special return value)
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     */
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    public function enterNode(Node $node)
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    {
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        if (!$node instanceof FuncCall && !$node instanceof MethodCall && !$node instanceof StaticCall) {
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            return;
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        }
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        foreach ($node->args as $arg) {
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            if ($arg instanceof VariadicPlaceholder) {
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                continue;
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            }
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            if ($arg->byRef) {
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                throw new FatalErrorException(self::EXCEPTION_MESSAGE, 0, \E_ERROR, null, $node->getLine());
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            }
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        }
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    }
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}