Data privacy is an important issue in most multi-user systems.
Muq meets this need by equipping objects with an area for
hidden keyvals visible only to the owner of the object.
This area is otherwise identical to the area in which public
keyvals are stored, and is accessed by using
. as the object/key separator.
Stack: makeIndex --> a Stack: makeIndex --> a$h.b ( Hidden key :b on obj a. ) Stack: makeIndex --> a$h.b$h.c ( Hidden key :c on obj a$h.b. ) Stack: 13 --> a$h.b$h.c$h.d ( Hidden key :d on obj a$h.b$h.c. ) Stack: a$h.b$h.c$h.d Stack: 13 ( Sure enough! )
Again, the final expression could be coded "by hand" if we wanted:
Stack: a :b hiddenGet :c hiddenGet :d hiddenGet
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