And note that Ruby eigenclasses are in effect perfectly normal classes, with the exceptions that: 1) they dynamically get created the first time you define a method on it, 2) they are then "injected" into the inheritance chain, yet hidden from you when you try to follow the inheritance chain.
In effect, from an implementation point of view (at least for MRI), they're just normal classes except for when you define them, and a handful of insignificant cases where you have to check a flag to determine whether or not to consider them.
In effect, from an implementation point of view (at least for MRI), they're just normal classes except for when you define them, and a handful of insignificant cases where you have to check a flag to determine whether or not to consider them.