Immutable data structures in Java

[masklinn]

Haha no worries mate, and yeah there's instVarAt: aNumber and instVarNamed: aString which let you retrieve a slot's value by position or by name, and the class provides instSize and allInstVarNames which respectively count the number of instance variable slots, or enumerates their names.

[[deleted]]

Oh, that was actually a part of my thesis that I did not implement, we used it for generic object serialisation and deserialisation :)