| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146 | <?php/* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */namespace Symfony\Component\VarExporter\Internal;use Symfony\Component\VarExporter\Exception\ClassNotFoundException;use Symfony\Component\VarExporter\Exception\NotInstantiableTypeException;/** * @author Nicolas Grekas <p@tchwork.com> * * @internal */class Registry{    public static $reflectors = [];    public static $prototypes = [];    public static $factories = [];    public static $cloneable = [];    public static $instantiableWithoutConstructor = [];    public $classes = [];    public function __construct(array $classes)    {        $this->classes = $classes;    }    public static function unserialize($objects, $serializables)    {        $unserializeCallback = ini_set('unserialize_callback_func', __CLASS__.'::getClassReflector');        try {            foreach ($serializables as $k => $v) {                $objects[$k] = unserialize($v);            }        } finally {            ini_set('unserialize_callback_func', $unserializeCallback);        }        return $objects;    }    public static function p($class)    {        self::getClassReflector($class, true, true);        return self::$prototypes[$class];    }    public static function f($class)    {        $reflector = self::$reflectors[$class] ?? self::getClassReflector($class, true, false);        return self::$factories[$class] = \Closure::fromCallable([$reflector, 'newInstanceWithoutConstructor']);    }    public static function getClassReflector($class, $instantiableWithoutConstructor = false, $cloneable = null)    {        if (!($isClass = class_exists($class)) && !interface_exists($class, false) && !trait_exists($class, false)) {            throw new ClassNotFoundException($class);        }        $reflector = new \ReflectionClass($class);        if ($instantiableWithoutConstructor) {            $proto = $reflector->newInstanceWithoutConstructor();        } elseif (!$isClass || $reflector->isAbstract()) {            throw new NotInstantiableTypeException($class);        } elseif ($reflector->name !== $class) {            $reflector = self::$reflectors[$name = $reflector->name] ?? self::getClassReflector($name, false, $cloneable);            self::$cloneable[$class] = self::$cloneable[$name];            self::$instantiableWithoutConstructor[$class] = self::$instantiableWithoutConstructor[$name];            self::$prototypes[$class] = self::$prototypes[$name];            return self::$reflectors[$class] = $reflector;        } else {            try {                $proto = $reflector->newInstanceWithoutConstructor();                $instantiableWithoutConstructor = true;            } catch (\ReflectionException $e) {                $proto = $reflector->implementsInterface('Serializable') && !method_exists($class, '__unserialize') ? 'C:' : 'O:';                if ('C:' === $proto && !$reflector->getMethod('unserialize')->isInternal()) {                    $proto = null;                } else {                    try {                        $proto = @unserialize($proto.\strlen($class).':"'.$class.'":0:{}');                    } catch (\Exception $e) {                        if (__FILE__ !== $e->getFile()) {                            throw $e;                        }                        throw new NotInstantiableTypeException($class, $e);                    }                    if (false === $proto) {                        throw new NotInstantiableTypeException($class);                    }                }            }            if (null !== $proto && !$proto instanceof \Throwable && !$proto instanceof \Serializable && !method_exists($class, '__sleep') && (\PHP_VERSION_ID < 70400 || !method_exists($class, '__serialize'))) {                try {                    serialize($proto);                } catch (\Exception $e) {                    throw new NotInstantiableTypeException($class, $e);                }            }        }        if (null === $cloneable) {            if (($proto instanceof \Reflector || $proto instanceof \ReflectionGenerator || $proto instanceof \ReflectionType || $proto instanceof \IteratorIterator || $proto instanceof \RecursiveIteratorIterator) && (!$proto instanceof \Serializable && !method_exists($proto, '__wakeup') && (\PHP_VERSION_ID < 70400 || !method_exists($class, '__unserialize')))) {                throw new NotInstantiableTypeException($class);            }            $cloneable = $reflector->isCloneable() && !$reflector->hasMethod('__clone');        }        self::$cloneable[$class] = $cloneable;        self::$instantiableWithoutConstructor[$class] = $instantiableWithoutConstructor;        self::$prototypes[$class] = $proto;        if ($proto instanceof \Throwable) {            static $setTrace;            if (null === $setTrace) {                $setTrace = [                    new \ReflectionProperty(\Error::class, 'trace'),                    new \ReflectionProperty(\Exception::class, 'trace'),                ];                $setTrace[0]->setAccessible(true);                $setTrace[1]->setAccessible(true);                $setTrace[0] = \Closure::fromCallable([$setTrace[0], 'setValue']);                $setTrace[1] = \Closure::fromCallable([$setTrace[1], 'setValue']);            }            $setTrace[$proto instanceof \Exception]($proto, []);        }        return self::$reflectors[$class] = $reflector;    }}
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