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148 lars 1 
<?php
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/*
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 * This file is part of the Symfony package.
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 *
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 * (c) Fabien Potencier <fabien@symfony.com>
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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 Symfony\Component\VarDumper\Cloner;
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/**
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 * Represents the main properties of a PHP variable.
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 *
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 * @author Nicolas Grekas <p@tchwork.com>
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 */
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class Stub
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{
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    public const TYPE_REF = 1;
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    public const TYPE_STRING = 2;
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    public const TYPE_ARRAY = 3;
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    public const TYPE_OBJECT = 4;
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    public const TYPE_RESOURCE = 5;
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    public const STRING_BINARY = 1;
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    public const STRING_UTF8 = 2;
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    public const ARRAY_ASSOC = 1;
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    public const ARRAY_INDEXED = 2;
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    public $type = self::TYPE_REF;
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    public $class = '';
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    public $value;
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    public $cut = 0;
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    public $handle = 0;
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    public $refCount = 0;
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    public $position = 0;
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    public $attr = [];
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    private static array $defaultProperties = [];
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    /**
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     * @internal
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     */
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    public function __sleep(): array
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    {
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        $properties = [];
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        if (!isset(self::$defaultProperties[$c = static::class])) {
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            self::$defaultProperties[$c] = get_class_vars($c);
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            foreach ((new \ReflectionClass($c))->getStaticProperties() as $k => $v) {
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                unset(self::$defaultProperties[$c][$k]);
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            }
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        }
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        foreach (self::$defaultProperties[$c] as $k => $v) {
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            if ($this->$k !== $v) {
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                $properties[] = $k;
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            }
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        }
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        return $properties;
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    }
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}