* No cl-lib replacement for define-modify-macro? @ 2012-11-06 8:12 Glenn Morris 2012-11-06 14:59 ` Stefan Monnier 0 siblings, 1 reply; 4+ messages in thread From: Glenn Morris @ 2012-11-06 8:12 UTC (permalink / raw) To: emacs-devel It seems that there is no cl-lib replacement for cl.el's define-modify-macro. (I can't really see anything in gv.el that would replace it either.) Is that intentional (because it is believed to be unused)? It looks like cl-define-modify-macro would have exactly the same definition as define-modify-macro, so I can't see a reason not to simply move it to cl-lib.el and add an alias in cl.el. ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: No cl-lib replacement for define-modify-macro? 2012-11-06 8:12 No cl-lib replacement for define-modify-macro? Glenn Morris @ 2012-11-06 14:59 ` Stefan Monnier 2012-11-06 16:53 ` Glenn Morris 0 siblings, 1 reply; 4+ messages in thread From: Stefan Monnier @ 2012-11-06 14:59 UTC (permalink / raw) To: Glenn Morris; +Cc: emacs-devel > It seems that there is no cl-lib replacement for cl.el's define-modify-macro. > (I can't really see anything in gv.el that would replace it either.) The replacement is gv-letplace. Stefan ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: No cl-lib replacement for define-modify-macro? 2012-11-06 14:59 ` Stefan Monnier @ 2012-11-06 16:53 ` Glenn Morris 2012-11-06 18:03 ` Stefan Monnier 0 siblings, 1 reply; 4+ messages in thread From: Glenn Morris @ 2012-11-06 16:53 UTC (permalink / raw) To: Stefan Monnier; +Cc: emacs-devel Stefan Monnier wrote: > The replacement is gv-letplace. How do I write: (define-modify-macro incf (&optional (n 1)) +) using gv-letplace? (Forget about the "&optional" bit if necessary.) ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: No cl-lib replacement for define-modify-macro? 2012-11-06 16:53 ` Glenn Morris @ 2012-11-06 18:03 ` Stefan Monnier 0 siblings, 0 replies; 4+ messages in thread From: Stefan Monnier @ 2012-11-06 18:03 UTC (permalink / raw) To: Glenn Morris; +Cc: emacs-devel >> The replacement is gv-letplace. > How do I write: > (define-modify-macro incf (&optional (n 1)) +) > using gv-letplace? (Forget about the "&optional" bit if necessary.) Guaranteed 100% untested: (defmacro incf (place &optional n) (gv-letplace (getter setter) place (macroexp-let2 nil v (or n 1) (funcall setter `(+ ,v ,getter))))) -- Stefan ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2012-11-06 18:03 UTC | newest] Thread overview: 4+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2012-11-06 8:12 No cl-lib replacement for define-modify-macro? Glenn Morris 2012-11-06 14:59 ` Stefan Monnier 2012-11-06 16:53 ` Glenn Morris 2012-11-06 18:03 ` Stefan Monnier
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