From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Michael Heerdegen Newsgroups: gmane.emacs.bugs Subject: bug#27016: possible bug in `defsetf' Date: Thu, 25 May 2017 23:31:13 +0200 Message-ID: <87o9ugd3oe.fsf@drachen> References: <87poex5igx.fsf@users.sourceforge.net> <87vaood6nz.fsf@drachen> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1495747932 16671 195.159.176.226 (25 May 2017 21:32:12 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Thu, 25 May 2017 21:32:12 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux) Cc: 27016@debbugs.gnu.org, Rafael D Sorkin To: Noam Postavsky Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu May 25 23:32:08 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dE0MX-0004BR-VN for geb-bug-gnu-emacs@m.gmane.org; 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Thu, 25 May 2017 23:31:15 +0200 In-Reply-To: (Noam Postavsky's message of "Thu, 25 May 2017 16:42:50 -0400") X-Provags-ID: V03:K0:XhUcM1oMzbu9/gFxkSzFhzWJ96jPwx+aaGKPQ5uOF8XUj+0Qrd+ eWTjUFtww9vg+crt4eGkHCx3aaACC1vlJBqA+aIY/UHB8wmKJWo2pFtpXGRWDckrG/FXdMs ugkFVE6/y/sEb4S5jtmASwykyOma32cHnPYgse3lwmjo0bz/8QTfp3y0O0k+FUYXfLnT2EC TCUYQI3iClIj/BUFEMVvA== X-UI-Out-Filterresults: notjunk:1;V01:K0:zGD2LWzgvfk=:Qwi968EOXbV3eCAiW/ZbVE 514rQL4vphwGYxvzCwYa/giOeACZ4XgGWujxlxYZIbRPDc1oUbPLiTTEnNvjCPReS/FsWU2dc 73+uvjdq3YLocgeqBkGaIHOEU+/ar7wBMvW9plN5y3LuxW2mSjh1xwOVtRYTEHbFRdTzp7fV4 SllBJZpg+al15/t9SzOLXnmqFqXVVkkG8ds4EFjGd70zGGe8Ob90gAs2SSUndOxOiylGxp/zN 96m/amTpe7BPymESWjBkBaNuIJuSblDfFiVaQiVLRntB4+jYqGJHKx9nqfTNY5FCtsjd/FWTh WAF/GZt7FwaFLpuiY0hNBEtH15+HCt9BJsCYtc71pgDbj/4u7wWvdERVEpIr8tmD4CZNM83Se mEM0qgIMNMVAlkOmB33yLfUL4BkEcHUuxyM8meUIlh2XGX+Pm3kB0GMpA+bjBiyrd/gFKiebi eAYRHQ6LLNAw4UZZMUasS5tletBfZd90ESOvDeu8cmNcOFKzWMDKIGDrdeAmuHPQAbMI595EA VTZPXwQvJ2tE2tpeM3BMAb7+0QhLc4q165EgWmNkuwzn4oUutQIgzUF/fCzuxjEz5DkuzHzV2 AJSXyzUAKuiZEAWHYThapJ3xGqHx2mJS5VWKi2f3JqRdsS4P/OvVs64EZf3966FFrEL5JRhq3 g0yn1VtbzEjwQyMiwOyeWSIQqALLHZsk5fOfEkyd7Jz6TrZuqmafC1QY9bmX+tyWQx1BTnRF7 +98BNUMZbHkkLugPDETDdF/ngMBe2ChV2SnosA8YPxBnQJpZt/Xkd5SPdcm8frtcVZ0UuLfJ X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:132866 Archived-At: Noam Postavsky writes: > Hmm, I thought it would cause the 'unless t' to happen in the > macroexpansion phase as well, but I was wrong. Apparently 'eval-when' > doesn't have this effect, only eval-when-compile or eval-and-compile > will do the trick. That also doesn't work. Apart from the fact that you would have the `defsetf' executed at compile time as side effect, #+begin_src emacs-lisp (macroexpand '(defsetf foo bar)) ==> '(lambda (do &rest args) (gv--defsetter 'foo (lambda (val &rest args) `(,'bar ,@args ,val)) do args)) #+end_src (i.e. a constant!). When you compile a file with this content: #+begin_src emacs-lisp (eval-and-compile (unless nil (defsetf foo bar))) #+end_src you get an empty .elc. Isn't that strange? Michael.