From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Speeding up Flymake in emacs-lisp-mode Date: Fri, 02 Nov 2018 08:08:45 -0400 Message-ID: References: NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1541160457 16481 195.159.176.226 (2 Nov 2018 12:07:37 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 2 Nov 2018 12:07:37 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Nov 02 13:07:33 2018 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 1gIYEd-00049E-1A for ged-emacs-devel@m.gmane.org; Fri, 02 Nov 2018 13:07:31 +0100 Original-Received: from localhost ([::1]:51241 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gIYGj-0001Ue-6r for ged-emacs-devel@m.gmane.org; Fri, 02 Nov 2018 08:09:41 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:34752) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gIYG5-0001UP-3L for emacs-devel@gnu.org; Fri, 02 Nov 2018 08:09:01 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gIYFz-0007FX-Pr for emacs-devel@gnu.org; Fri, 02 Nov 2018 08:09:01 -0400 Original-Received: from [195.159.176.226] (port=32881 helo=blaine.gmane.org) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gIYFz-0007En-IM for emacs-devel@gnu.org; Fri, 02 Nov 2018 08:08:55 -0400 Original-Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1gIYDq-0003HN-Ky for emacs-devel@gnu.org; Fri, 02 Nov 2018 13:06:42 +0100 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 34 Original-X-Complaints-To: usenet@blaine.gmane.org Cancel-Lock: sha1:T6xC/RvUn5UTjfM2SBCtvHB+DgU= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 195.159.176.226 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:230970 Archived-At: > Which brings me to my question: is there a way to re-flash the current > emacs's image with a brand new one, or to erase any side-effects of > previous byte-compilations? The only pitfall would be that I would need > server.el's bits to escape this reflashing otherwise I would be locked > out. There is no such thing, but you should be able to get some approximation of it using the same approach I used on my "dump to .elc" attempts. I.e. something like: (defun emacs-snapshot-get () (let ((syms ())) (mapatoms (lambda (sym) (let ((ns (make-symbol (symbol-name sym)))) (setf (symbol-function ns) (symbol-function sym)) (setf (symbol-plist ns) (symbol-plist sym)) (when (default-boundp sym) (setf (default-value ns) (default-value sym)))))) syms)) (defun emacs-snapshot-revert (snapshot) (dolist (sym snapshot) (let ((ns (intern (symbol-name sym)))) (setf (symbol-function ns) (symbol-function sym)) (setf (symbol-plist ns) (symbol-plist sym)) (when (default-boundp sym) (setf (default-value ns) (default-value sym)))))) Of course, this may also just eat your lunch, so handle with care. Stefan "who was careful not to test it"