From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Dmitry Gutov Newsgroups: gmane.emacs.bugs Subject: bug#23430: 25.0.93; iter-defun does not support special form save-current-buffer Date: Sat, 7 May 2016 02:30:12 +0300 Message-ID: References: <86k2jc2ahf.fsf@yandex.ru> <87a8k2ahvr.fsf@web.de> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1462577498 25593 80.91.229.3 (6 May 2016 23:31:38 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 6 May 2016 23:31:38 +0000 (UTC) Cc: 23430@debbugs.gnu.org To: Michael Heerdegen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat May 07 01:31:29 2016 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1aypDT-00068R-LS for geb-bug-gnu-emacs@m.gmane.org; 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Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.1 In-Reply-To: <87a8k2ahvr.fsf@web.de> 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:117936 Archived-At: On 05/07/2016 02:25 AM, Michael Heerdegen wrote: > FWIW it's not crystal clear to me what the semantics of a supported > `with-current-buffer' would be. In particular: would `iter-yield' "jump > out" of the `with-current-buffer' and restore the previous buffer, and > would a restart of the generator change the current buffer again? I think so, yeah. In the "rewritten" version of code, with-current-buffer would surround the function's body, so each time the function is called, with-current-buffer would be applied. The value of point may or may not be saved and restored (this question also seems problematic, admittedly).