From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Michael Heerdegen Newsgroups: gmane.emacs.devel Subject: Re: Lambda in macrolet becomes a closure? (another breaking change in emacs:)) Date: Tue, 27 Sep 2016 16:57:46 +0200 Message-ID: <87r3851jbp.fsf@web.de> References: <871t07271d.fsf@web.de> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1474988302 15990 195.159.176.226 (27 Sep 2016 14:58:22 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 27 Sep 2016 14:58:22 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) Cc: Stefan Monnier , emacs-devel To: Constantin Kulikov Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Tue Sep 27 16:58:19 2016 Return-path: Envelope-to: ged-emacs-devel@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 1botpf-0002W6-Ay for ged-emacs-devel@m.gmane.org; Tue, 27 Sep 2016 16:58:07 +0200 Original-Received: from localhost ([::1]:51624 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1botpd-0001SH-Sz for ged-emacs-devel@m.gmane.org; Tue, 27 Sep 2016 10:58:05 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:56020) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1botpX-0001S6-FK for emacs-devel@gnu.org; Tue, 27 Sep 2016 10:58:00 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1botpT-0006nt-6M for emacs-devel@gnu.org; Tue, 27 Sep 2016 10:57:58 -0400 Original-Received: from mout.web.de ([212.227.15.4]:50496) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1botpS-0006my-So for emacs-devel@gnu.org; Tue, 27 Sep 2016 10:57:55 -0400 Original-Received: from drachen.dragon ([90.186.3.28]) by smtp.web.de (mrweb003) with ESMTPSA (Nemesis) id 0MejjU-1bZZrx2wpc-00OIZA; Tue, 27 Sep 2016 16:57:50 +0200 In-Reply-To: (Constantin Kulikov's message of "Tue, 27 Sep 2016 14:53:18 +0300") X-Provags-ID: V03:K0:9QjEIHO+8PcDEW3wmlRlm35o6GljyGV30BxUWHJoHJ11dZ8bnF8 hT8XxPy9+jCmkD2cKRMPVF8YQ92LbsBneMMj1ompD8gL6zeuSSGUC9c0CHHg8imdWehmNG/ 647HW7RN03PGJUSxYCaT0k33rNxUxgf9wuKQydFWCXDUiC9a/VTqTs6/X3hJmbIhC5T/5UX +vJv2YaIP3cNLfMz02K5Q== X-UI-Out-Filterresults: notjunk:1;V01:K0:SakK+ZtKdlc=:ltdbGPXdaOF2gFyEwHFEZU UwVRR8FCOCjft/RM1wLQmd34s/5BVRjeARlCH9LAJm+8ltc8Za2eoKPw7lXx9tAgvKiDdFEIq oL8BgrRgBTNdNBAPGvcy1/BXYd9kJZGsA9WsjnbOiKXx7EkljzlLhgytGHsfJGn6l4vEVFsdC RpSflXysdvkqpoZRa1VutuIqA5gpd98gkMnqHgniV0csTOy/tb+cSUvN57DYeJV3BJDBZ7p8f oz9CaL0/brUu091xR+J3Rcw7yG/SnXZZyz1+daKbrXrGameD1+PFsIWZeZQFox9gpA2R6fDqp 4E/iFLYBgJ2W4A0msQJV0UAFqeiH0ZM4rdROPQ22AO1krdreAj9EOO2gszwXNA2gJN0aDivLR +y3lH7++rdVpUxRldJ1NzeA+VSHTW+jrhVVUtb9qk0o0pD/lvLSM0Nu01RMgFMK6pCXbp6uX3 3eGyhuxN+WmDkA5ZHTgv6gNdIHSYTyK+59C0x1s1I731mo5mJEWEediKWdQGz8MPogKW6ltf2 pDFt8dbR7Krnfq95aqs0Ia1MUL7sNj3irMnG4UCSZa7ed0mDwnJF34XogVAfHPBJs4viVB4Dw vpvpkNnFXZCn1pZH/Ywf3lz0NLvM7gD0BMOPunCtJwz6ow9lnO0BW5TC7ciBZCVgBadHRJ+zO qG+zYgfdPyPb/WLPI6gk2MIi5HCUNPlMcbHmHwKq0DXWwnuamLU8XCSUczIWBRvZ1Vcw0t8k0 n6dc9BbF10gWO41ChU86OSpZ5qCv1v9FWp/I3XJHkvKSn7ok+rkoE1yam8XOPh33yyTzlsSv X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 212.227.15.4 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:207832 Archived-At: Constantin Kulikov writes: > Also, by looking at `minibuffer-with-setup-hook' [...] There is no > quotation of the fun, funsym or hook. Is it correct? A good question. But I think the definition is correct in this regard. FUN is (bound to) an expression (since `minibuffer-with-setup-hook' is a macro and FUN is just "pasted" into the expansion without evaluation). If you look at the expansion (let's use a lambda form as FUN): #+begin_src emacs-lisp (macroexpand-1 '(minibuffer-with-setup-hook (lambda () (do-some-setup)) do-this do-that)) ==> (let ((#2=#:fun (lambda nil (do-some-setup))) #1=#:setup-hook) (setq #1# (lambda nil (remove-hook #3='minibuffer-setup-hook #1#) (funcall #2#))) (unwind-protect (progn (add-hook #3# #1#) do-this do-that) (remove-hook #3# #1#))) #+end_src you see that nowhere a function value is evaluated. In some cases, a function expression is bound to a symbol (`let', `setq'), in the other cases, the code refers to the binding of these symbols. Michael.