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Re: setf.scm


Per Bothner <bothner@cygnus.com> writes:

> (Note:  Your program environment may allow you to replace methods
> in-place, but that is a programming environment feature, not a
> language feature.  Similarly, your environment may allow you
> to change the classes of existing objects, but the language
> should not.  I am talking about the run-time environment,
> not the develpment environment.)

Why shouldn't the language support that?