如何在不知道实例对象类型的情况下调用泛型方法

有了这个代码：

World w = new World();
var data = GetData<World>(w);

如果我有w带有反射，这可以是类型World, Ambient, Domention, etc.

我怎样才能得到GetData ???

我只有实例对象：

var data = GetData<???>(w);

var type = <The type where GetData method is defined>;

var genericType = typeof(w);

var methodInfo = type.GetMethod("GetData");

var genericMethodInfo = methodInfo.MakeGenericMethod(genericType);

//instance or null : if the class where GetData is defined is static, you can put null : else you need an instance of this class.
var data = genericMethodInfo.Invoke(<instance or null>, new[]{w});