From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Michael Heerdegen Newsgroups: gmane.emacs.bugs Subject: bug#45619: 28.0.50; pcase-let on MacOS doesn't work Date: Mon, 04 Jan 2021 13:44:33 +0100 Message-ID: <877dos50su.fsf@web.de> References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="26550"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: 45619@debbugs.gnu.org, Stefan Monnier To: jixiuf Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Jan 04 13:45:43 2021 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kwPF0-0006nP-JT for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 04 Jan 2021 13:45:42 +0100 Original-Received: from localhost ([::1]:60460 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kwPEz-0006oX-KH for geb-bug-gnu-emacs@m.gmane-mx.org; 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Mon, 04 Jan 2021 13:44:34 +0100 In-Reply-To: (jixiuf@qq.com's message of "Sun, 3 Jan 2021 15:59:05 +0800") X-Provags-ID: V03:K1:YDIO+J7ZVJNWu+cSCG0yuH7Yu1JJRAoBt3K/UOZSXoEoYkRNd20 +sky5XpaAWg9o5Hye53XKqD3aYrY7kaUr/NFfVASLwstMk+emiJNGRHLcO75c/Iv7yjMo7w dljDBbOC/L1W/9thaey1kddbCQUmlg9rxfanss4VWbbnmQFKlkAk9vSADL7dihYtKTmElXn FdHIlzD43WarQ0YxgJ/ng== X-UI-Out-Filterresults: notjunk:1;V03:K0:KlY/HJggtR4=:mM28QifPMOWDawoCtC5rxB MapdzAGxQdyooY2xs8qOdWJMjVrNe4Gak+hHEhvx21NvEtKb7Q0mpMjYXKF65NNiWfn2A9wjV 9pbZ2EUeZOdbpn7qCO5x1YCGkCrgr6Q5lrw8wpTfmpWmOx/FCA1xnhPRzSLx7HBsEkhrLFZbq 89GMtIwvwqyqSJkvE7eznk9z0osP5mfYuyD1at7x20yq+jpjEm2X/oCoWn0uXTZ8NZ5jA/iVx puuTcWfh3MNd12+MpKcGL0nBsCFPlCbyalsPUNNyEKM3osCm1PLPV8f068RFefu/wpMGqr3Lk 1YCw31ejt69W9uavAdtB4qo0zDZIFBxr2xTnzwyo+VD7ii4mbiF6HNlP0Tz/LIFpzu6WRl/zf AqILeKlgUDaUXlorAGcHFCxW8NoNvrcS3IN2zvilgBfDXC8uHi58EatKiDsZrCqyGlK687Uuw fojpKye7XzEA4b+DcWxtU69moez1U6xZOqL1V5Wo3gwToFix6phYxm+R1qjxhAYUdkwy5zB0v wrFqOi6t87FL4BPJACVPzqXcui0d5quLK7ojYM+Fmvbes7lz9+JHzIvDyxD3Pfa7FncsXRA/7 yVSSa8r6pimEJ29ytkeM7sHNaCCsNR2anfQu0tVnv2GFcGVE/fgXAJBQuF6nGkhy8LoisYnT1 WW2nEb6i9RAWXrmeIHxI+OtReOo0QhBaLfqHEcngnsegKLsIHfnXI+l6UakHotDwAXsYsACa6 mzjLXjtY9OxBw1Av6kptZy6ePsoJytl4T32FpjtoSS/pP47sqVHBVIJNoCxmctfKNumrG6yf X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:197302 Archived-At: jixiuf writes: > (pcase-let ((`(,default-directory) '( "/tmp/"))) > (call-interactively 'find-file)) > > Expected behavior: Find file in "/tmp/" > Observed behavior: Find file in "~" AFAICT the issue here is that `pcase-let' always creates lexically scoped bindings, even for special variables. That can be surprising. @Stefan, what can we do? Document better? Add compiler warnings? Or is it possible to "fix" this? Regards, Michael.