On Jul 9, 2007, at 4:16 PM, Brendan Eich wrote: > I think we have only two courses: > > 1. Kris's proposal to make F construct instances of C. If C is not > dynamic, these instances can't be decorated with expandos by (new > F) or its callers. > > 2. Your proposal to avoid any magic implication of F.prototype = c, > leaving f.x setting an unconstrained expando, leaving fixed methods > of C this-bound to c, etc.
Sorry, the "leaving fixed methods of C this-bound to c" is a red herring. It's true that extracting c.m or F.prototype.m would get a bound method reference which when called would bind |this| to c -- but that's not relevant to a delegated call f.m(), which would try to pass f, and then run into the type constraint on |this| that's implicit in all fixed (non-prototype qualified) methods (functions defined in class bodies). Hope this is all clear now :-P. /be _______________________________________________ Es4-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es4-discuss
