Doctrine\Common\Proxy\ProxyGenerator::generateWakeupImpl PHP Метод

    private function generateWakeupImpl(ClassMetadata $class)
    {
        $unsetPublicProperties = [];
        $hasWakeup = $class->getReflectionClass()->hasMethod('__wakeup');
        foreach (array_keys($this->getLazyLoadedPublicProperties($class)) as $lazyPublicProperty) {
            $unsetPublicProperties[] = '$this->' . $lazyPublicProperty;
        }
        $shortName = $this->generateProxyShortClassName($class);
        $inheritDoc = $hasWakeup ? '{@inheritDoc}' : '';
        $wakeupImpl = <<<EOT
    /**
     * {$inheritDoc}
     */
    public function __wakeup()
    {
        if ( ! \$this->__isInitialized__) {
            \$this->__initializer__ = function ({$shortName} \$proxy) {
                \$proxy->__setInitializer(null);
                \$proxy->__setCloner(null);

                \$existingProperties = get_object_vars(\$proxy);

                foreach (\$proxy->__getLazyProperties() as \$property => \$defaultValue) {
                    if ( ! array_key_exists(\$property, \$existingProperties)) {
                        \$proxy->\$property = \$defaultValue;
                    }
                }
            };

EOT;
        if (!empty($unsetPublicProperties)) {
            $wakeupImpl .= "\n            unset(" . implode(', ', $unsetPublicProperties) . ");";
        }
        $wakeupImpl .= "\n        }";
        if ($hasWakeup) {
            $wakeupImpl .= "\n        parent::__wakeup();";
        }
        $wakeupImpl .= "\n    }";
        return $wakeupImpl;
    }