case class Pers(name: String, age: Int)
    class Car(name: String)

    val p = Pers("Ivan", 2)
    val c = new Car("BMV")

    import scala.reflect.runtime.universe._
    
    def getListOfFields(p: Object): List[String] = {
      val m = runtimeMirror(p.getClass.getClassLoader)

      val symbol = m.classSymbol(p.getClass).typeSignature.typeSymbol.asClass
      val ctor = symbol.primaryConstructor

      val paramList = ctor.typeSignature.paramLists
      paramList.flatten.map(s => s.name.toString)
    }

    getListOfFields(p)
    getListOfFields(c)

//val res3: List[String] = List(name, age)
//val res4: List[String] = List(name)