public function getReflectionMember($objectOrClassName)
    {
        $className = \is_string($objectOrClassName) ? $objectOrClassName : \get_class($objectOrClassName);
        if (!isset($this->reflMember[$className])) {
            $this->reflMember[$className] = $this->newReflectionMember($objectOrClassName);
        }

        return $this->reflMember[$className];
    }