Re: "simplifications"

[Stefan Monnier]

> is not my idea of fun, or legible, or maintainable, or... you pick the
> word. Not that c??r is much of an improvement; we should be able to
> define accesor functions in the package

>  (defsubst ring--vec (ring)
>     (cdr (cdr ring)))

> and have the byte-compiler optimize them away.

1 - if you use defsubst* the byte-code will look good.
2 - you can use defstruct to get all that and more.
3 - I don't think it's worth the trouble to make the byte-optimizer more
    complex for such little benefit.  If you want to improve it, use the
    lexbind branch: it's a much saner starting point.


        Stefan "whose local Emacs hacks include some byte-optimizer
                improvement which does manage to optimize `cadr' but it's too
                much work works with too many limitations and on top of
                that, it's not even clear that the optimization is
                always correct: it doesn't account for the case where
                you do
                (defsubst cadr (debug-on-error) (car (cdr debug-on-error)))
                in which case the optimization is not semantics preserving"