Add a variable to a class instance at runtime: Difference between revisions

ELENA does not support adding a field at run-time but it can be simulated with the help of a group objectmix-in.

<lang elena>#defineimport extensions.

#class Extender :: BaseExtender

#fieldobject theField.

#constructor new : anObject

#method foo = theField.

#method set &foo : aValue

#symbol program =

#var anObject := 234.