File "Native.php"
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<?php
namespace ElementorDeps\Laravel\SerializableClosure\Serializers;
use Closure;
use DateTimeInterface;
use ElementorDeps\Laravel\SerializableClosure\Contracts\Serializable;
use ElementorDeps\Laravel\SerializableClosure\SerializableClosure;
use ElementorDeps\Laravel\SerializableClosure\Support\ClosureScope;
use ElementorDeps\Laravel\SerializableClosure\Support\ClosureStream;
use ElementorDeps\Laravel\SerializableClosure\Support\ReflectionClosure;
use ElementorDeps\Laravel\SerializableClosure\Support\SelfReference;
use ElementorDeps\Laravel\SerializableClosure\UnsignedSerializableClosure;
use ReflectionObject;
use UnitEnum;
class Native implements Serializable
{
/**
* Transform the use variables before serialization.
*
* @var \Closure|null
*/
public static $transformUseVariables;
/**
* Resolve the use variables after unserialization.
*
* @var \Closure|null
*/
public static $resolveUseVariables;
/**
* The closure to be serialized/unserialized.
*
* @var \Closure
*/
protected $closure;
/**
* The closure's reflection.
*
* @var \Laravel\SerializableClosure\Support\ReflectionClosure|null
*/
protected $reflector;
/**
* The closure's code.
*
* @var array|null
*/
protected $code;
/**
* The closure's reference.
*
* @var string
*/
protected $reference;
/**
* The closure's scope.
*
* @var \Laravel\SerializableClosure\Support\ClosureScope|null
*/
protected $scope;
/**
* The "key" that marks an array as recursive.
*/
const ARRAY_RECURSIVE_KEY = 'LARAVEL_SERIALIZABLE_RECURSIVE_KEY';
/**
* Creates a new serializable closure instance.
*
* @param \Closure $closure
* @return void
*/
public function __construct(Closure $closure)
{
$this->closure = $closure;
}
/**
* Resolve the closure with the given arguments.
*
* @return mixed
*/
public function __invoke()
{
return \call_user_func_array($this->closure, \func_get_args());
}
/**
* Gets the closure.
*
* @return \Closure
*/
public function getClosure()
{
return $this->closure;
}
/**
* Get the serializable representation of the closure.
*
* @return array
*/
public function __serialize()
{
if ($this->scope === null) {
$this->scope = new ClosureScope();
$this->scope->toSerialize++;
}
$this->scope->serializations++;
$scope = $object = null;
$reflector = $this->getReflector();
if ($reflector->isBindingRequired()) {
$object = $reflector->getClosureThis();
static::wrapClosures($object, $this->scope);
}
if ($scope = $reflector->getClosureScopeClass()) {
$scope = $scope->name;
}
$this->reference = \spl_object_hash($this->closure);
$this->scope[$this->closure] = $this;
$use = $reflector->getUseVariables();
if (static::$transformUseVariables) {
$use = \call_user_func(static::$transformUseVariables, $reflector->getUseVariables());
}
$code = $reflector->getCode();
$this->mapByReference($use);
$data = ['use' => $use, 'function' => $code, 'scope' => $scope, 'this' => $object, 'self' => $this->reference];
if (!--$this->scope->serializations && !--$this->scope->toSerialize) {
$this->scope = null;
}
return $data;
}
/**
* Restore the closure after serialization.
*
* @param array $data
* @return void
*/
public function __unserialize($data)
{
ClosureStream::register();
$this->code = $data;
unset($data);
$this->code['objects'] = [];
if ($this->code['use']) {
$this->scope = new ClosureScope();
if (static::$resolveUseVariables) {
$this->code['use'] = \call_user_func(static::$resolveUseVariables, $this->code['use']);
}
$this->mapPointers($this->code['use']);
\extract($this->code['use'], \EXTR_OVERWRITE | \EXTR_REFS);
$this->scope = null;
}
$this->closure = (include ClosureStream::STREAM_PROTO . '://' . $this->code['function']);
if ($this->code['this'] === $this) {
$this->code['this'] = null;
}
$this->closure = $this->closure->bindTo($this->code['this'], $this->code['scope']);
if (!empty($this->code['objects'])) {
foreach ($this->code['objects'] as $item) {
$item['property']->setValue($item['instance'], $item['object']->getClosure());
}
}
$this->code = $this->code['function'];
}
/**
* Ensures the given closures are serializable.
*
* @param mixed $data
* @param \Laravel\SerializableClosure\Support\ClosureScope $storage
* @return void
*/
public static function wrapClosures(&$data, $storage)
{
if ($data instanceof Closure) {
$data = new static($data);
} elseif (\is_array($data)) {
if (isset($data[self::ARRAY_RECURSIVE_KEY])) {
return;
}
$data[self::ARRAY_RECURSIVE_KEY] = \true;
foreach ($data as $key => &$value) {
if ($key === self::ARRAY_RECURSIVE_KEY) {
continue;
}
static::wrapClosures($value, $storage);
}
unset($value);
unset($data[self::ARRAY_RECURSIVE_KEY]);
} elseif ($data instanceof \stdClass) {
if (isset($storage[$data])) {
$data = $storage[$data];
return;
}
$data = $storage[$data] = clone $data;
foreach ($data as &$value) {
static::wrapClosures($value, $storage);
}
unset($value);
} elseif (\is_object($data) && !$data instanceof static && !$data instanceof UnitEnum) {
if (isset($storage[$data])) {
$data = $storage[$data];
return;
}
$instance = $data;
$reflection = new ReflectionObject($instance);
if (!$reflection->isUserDefined()) {
$storage[$instance] = $data;
return;
}
$storage[$instance] = $data = $reflection->newInstanceWithoutConstructor();
do {
if (!$reflection->isUserDefined()) {
break;
}
foreach ($reflection->getProperties() as $property) {
if ($property->isStatic() || !$property->getDeclaringClass()->isUserDefined()) {
continue;
}
$property->setAccessible(\true);
if (\PHP_VERSION >= 7.4 && !$property->isInitialized($instance)) {
continue;
}
$value = $property->getValue($instance);
if (\is_array($value) || \is_object($value)) {
static::wrapClosures($value, $storage);
}
$property->setValue($data, $value);
}
} while ($reflection = $reflection->getParentClass());
}
}
/**
* Gets the closure's reflector.
*
* @return \Laravel\SerializableClosure\Support\ReflectionClosure
*/
public function getReflector()
{
if ($this->reflector === null) {
$this->code = null;
$this->reflector = new ReflectionClosure($this->closure);
}
return $this->reflector;
}
/**
* Internal method used to map closure pointers.
*
* @param mixed $data
* @return void
*/
protected function mapPointers(&$data)
{
$scope = $this->scope;
if ($data instanceof static) {
$data =& $data->closure;
} elseif (\is_array($data)) {
if (isset($data[self::ARRAY_RECURSIVE_KEY])) {
return;
}
$data[self::ARRAY_RECURSIVE_KEY] = \true;
foreach ($data as $key => &$value) {
if ($key === self::ARRAY_RECURSIVE_KEY) {
continue;
} elseif ($value instanceof static) {
$data[$key] =& $value->closure;
} elseif ($value instanceof SelfReference && $value->hash === $this->code['self']) {
$data[$key] =& $this->closure;
} else {
$this->mapPointers($value);
}
}
unset($value);
unset($data[self::ARRAY_RECURSIVE_KEY]);
} elseif ($data instanceof \stdClass) {
if (isset($scope[$data])) {
return;
}
$scope[$data] = \true;
foreach ($data as $key => &$value) {
if ($value instanceof SelfReference && $value->hash === $this->code['self']) {
$data->{$key} =& $this->closure;
} elseif (\is_array($value) || \is_object($value)) {
$this->mapPointers($value);
}
}
unset($value);
} elseif (\is_object($data) && !$data instanceof Closure) {
if (isset($scope[$data])) {
return;
}
$scope[$data] = \true;
$reflection = new ReflectionObject($data);
do {
if (!$reflection->isUserDefined()) {
break;
}
foreach ($reflection->getProperties() as $property) {
if ($property->isStatic() || !$property->getDeclaringClass()->isUserDefined()) {
continue;
}
$property->setAccessible(\true);
if (\PHP_VERSION >= 7.4 && !$property->isInitialized($data)) {
continue;
}
if (\PHP_VERSION >= 8.1 && $property->isReadOnly()) {
continue;
}
$item = $property->getValue($data);
if ($item instanceof SerializableClosure || $item instanceof UnsignedSerializableClosure || $item instanceof SelfReference && $item->hash === $this->code['self']) {
$this->code['objects'][] = ['instance' => $data, 'property' => $property, 'object' => $item instanceof SelfReference ? $this : $item];
} elseif (\is_array($item) || \is_object($item)) {
$this->mapPointers($item);
$property->setValue($data, $item);
}
}
} while ($reflection = $reflection->getParentClass());
}
}
/**
* Internal method used to map closures by reference.
*
* @param mixed $data
* @return void
*/
protected function mapByReference(&$data)
{
if ($data instanceof Closure) {
if ($data === $this->closure) {
$data = new SelfReference($this->reference);
return;
}
if (isset($this->scope[$data])) {
$data = $this->scope[$data];
return;
}
$instance = new static($data);
$instance->scope = $this->scope;
$data = $this->scope[$data] = $instance;
} elseif (\is_array($data)) {
if (isset($data[self::ARRAY_RECURSIVE_KEY])) {
return;
}
$data[self::ARRAY_RECURSIVE_KEY] = \true;
foreach ($data as $key => &$value) {
if ($key === self::ARRAY_RECURSIVE_KEY) {
continue;
}
$this->mapByReference($value);
}
unset($value);
unset($data[self::ARRAY_RECURSIVE_KEY]);
} elseif ($data instanceof \stdClass) {
if (isset($this->scope[$data])) {
$data = $this->scope[$data];
return;
}
$instance = $data;
$this->scope[$instance] = $data = clone $data;
foreach ($data as &$value) {
$this->mapByReference($value);
}
unset($value);
} elseif (\is_object($data) && !$data instanceof SerializableClosure && !$data instanceof UnsignedSerializableClosure) {
if (isset($this->scope[$data])) {
$data = $this->scope[$data];
return;
}
$instance = $data;
if ($data instanceof DateTimeInterface) {
$this->scope[$instance] = $data;
return;
}
if ($data instanceof UnitEnum) {
$this->scope[$instance] = $data;
return;
}
$reflection = new ReflectionObject($data);
if (!$reflection->isUserDefined()) {
$this->scope[$instance] = $data;
return;
}
$this->scope[$instance] = $data = $reflection->newInstanceWithoutConstructor();
do {
if (!$reflection->isUserDefined()) {
break;
}
foreach ($reflection->getProperties() as $property) {
if ($property->isStatic() || !$property->getDeclaringClass()->isUserDefined()) {
continue;
}
$property->setAccessible(\true);
if (\PHP_VERSION >= 7.4 && !$property->isInitialized($instance)) {
continue;
}
$value = $property->getValue($instance);
if (\is_array($value) || \is_object($value)) {
$this->mapByReference($value);
}
$property->setValue($data, $value);
}
} while ($reflection = $reflection->getParentClass());
}
}
}