On Wed, Sep 15, 2010 at 14:57, Matthias Felleisen <matth...@ccs.neu.edu>wrote:
> > Can we start from something simpler? > > The name of your macro suggests that you want something like this: > > (define one-and-only-one-instance > (new (class my-super% ...))) > > This creates a class and creates a single instance. Because class is nested > in the call to new, there is no way to get another instance. > > Would this be what you want? > Okay, let me explain what I want to do (the name is not really set in stone yet). There is a class a% defined somewhere, and an instance parameter current-a%-object of class a%. Suppose a% has methods foo and bar. Then I call: (class->singleton a% current-a%-object) This is supposed to define the forms (foo ....) and (bar ....) so that they act like (send (current-a%-object) foo ....), etc. I want to build these definitions automatically from the methods of the class. Anyway, beside the intended goal, I'd still like to know how solve the macro issue.
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