> On 18 Oct 2017, at 08:32 , James Ladd <ladd.ja...@gmail.com> wrote:
> 
> What if accessors were generated but not mutators?
> 

The point is that, once a method exists, there is not way to restrict who can 
send a message that will execute it.  So if one were forces to generate a 
reader method, or a writer method, just to give access to a subclass, then 
every object n the system would also gain access.

        Andrew


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