From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Zhu Zihao Newsgroups: gmane.emacs.devel Subject: Re: Are "proper" closures used in Emacs sources? Date: Tue, 12 Jan 2021 23:56:51 +0800 Message-ID: <86v9c2no70.fsf@163.com> References: <875z42s1r3.fsf@mbork.pl> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha256; protocol="application/pgp-signature" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="13948"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: mu4e 1.4.14; emacs 27.1 Cc: emacs-devel@gnu.org To: Marcin Borkowski Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Jan 12 16:58:17 2021 Return-path: Envelope-to: ged-emacs-devel@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 1kzM3k-0003RY-Dw for ged-emacs-devel@m.gmane-mx.org; Tue, 12 Jan 2021 16:58:16 +0100 Original-Received: from localhost ([::1]:33424 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kzM3j-0004ci-D2 for ged-emacs-devel@m.gmane-mx.org; Tue, 12 Jan 2021 10:58:15 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:42596) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kzM2x-0003kM-Nz for emacs-devel@gnu.org; Tue, 12 Jan 2021 10:57:27 -0500 Original-Received: from m12-11.163.com ([220.181.12.11]:34083) by eggs.gnu.org with esmtps (TLS1.2:DHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kzM2r-0000s3-0F for emacs-devel@gnu.org; Tue, 12 Jan 2021 10:57:26 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-ID:MIME-Version; bh=xDNG4 YUFvcKg0NwYAh6BTGUbe3qWUriGW6fbeAtvZi8=; b=PKVK009JSs+pTHAQRQ8Dq 26o2KXqSioMa3fHuQDOCBaYNLZJY06kbTWDhpNNFj/BBJW/+hJ7mR1d2glDCq49/ WIH1Flmn2kMxLoAvF1nCIjlZ5vvDU2uV9YIaI5fqGggOSTn4dhMztxhcJoKmZ5dF 7DIxKE/J6SkLGZU9mGlXYs= Original-Received: from asus-laptop (unknown [14.121.133.134]) by smtp7 (Coremail) with SMTP id C8CowAAnGOjIxv1f0jjtIQ--.32920S2; Tue, 12 Jan 2021 23:56:56 +0800 (CST) In-reply-to: <875z42s1r3.fsf@mbork.pl> X-CM-TRANSID: C8CowAAnGOjIxv1f0jjtIQ--.32920S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7v73 VFW2AGmfu7bjvjm3AaLaJ3UbIYCTnIWIevJa73UjIFyTuYvj4RuD73DUUUU X-Originating-IP: [14.121.133.134] X-CM-SenderInfo: pdoosuxxwbztlvw6il2tof0z/1tbitAkYr1SIkEAh1QAAsy Received-SPF: pass client-ip=220.181.12.11; envelope-from=all_but_last@163.com; helo=m12-11.163.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 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-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:262990 Archived-At: --=-=-= Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Marcin Borkowski writes: > Hi all, > > it's been quite some time since lexical binding was introduced to > Elisp. Apart from possible optimizations and being less error-prone, it > allows for all the cool tricks with closures. Are there any places in > Emacs core where "proper" closures are actually used? (By "proper", > I mean closures with non-empty lexical environment, actually using said > environment.) > > TIA, thunk.el & generator.el=20 =2D-=20 Retrieve my PGP public key: gpg --recv-keys D47A9C8B2AE3905B563D9135BE42B352A9F6821F Zihao --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iIsEARYIADMWIQTUepyLKuOQW1Y9kTW+QrNSqfaCHwUCX/3GwxUcYWxsX2J1dF9s YXN0QDE2My5jb20ACgkQvkKzUqn2gh9/mAEAkhFtS2CjhW9LB8T5UBQXeRa1/dGv d7yS+SH51aXQHUEA/i2pYDxYwZ0AfmJ9tbV9znQ1LaAnHXPunJGWQEq43j8M =iXKW -----END PGP SIGNATURE----- --=-=-=--