vendor/opis/closure/src/SerializableClosure.php

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<?php
/* ===========================================================================
 * Copyright (c) 2018-2019 Zindex Software
 *
 * Licensed under the MIT License
 * =========================================================================== */

namespace Opis\Closure;

use Closure;
use Serializable;
use SplObjectStorage;
use ReflectionObject;

/**
 * Provides a wrapper for serialization of closures
 */
class SerializableClosure implements Serializable
{
    /**
     * @var Closure Wrapped closure
     *
     * @see \Opis\Closure\SerializableClosure::getClosure()
     */
    protected $closure;

    /**
     * @var ReflectionClosure A reflection instance for closure
     *
     * @see \Opis\Closure\SerializableClosure::getReflector()
     */
    protected $reflector;

    /**
     * @var mixed Used at deserialization to hold variables
     *
     * @see \Opis\Closure\SerializableClosure::unserialize()
     * @see \Opis\Closure\SerializableClosure::getReflector()
     */
    protected $code;

    /**
     * @var string Closure's ID
     */
    protected $reference;

    /**
     * @var string Closure scope
     */
    protected $scope;

    /**
     * @var ClosureContext Context of closure, used in serialization
     */
    protected static $context;

    /**
     * @var ISecurityProvider|null
     */
    protected static $securityProvider;