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Mon, 21 Nov 2022 07:52:48 -0800 (PST) From: zimoun In-Reply-To: <87zgckwdtw.fsf@gmail.com> References: <20221027035100.28852-1-maxim.cournoyer@gmail.com> <20221027035100.28852-3-maxim.cournoyer@gmail.com> <87leojon1z.fsf_-_@gnu.org> <877d03xywl.fsf@gmail.com> <87sfihfpng.fsf_-_@gnu.org> <86zgcpju9p.fsf@gmail.com> <87y1s82o23.fsf@gmail.com> <87zgckwdtw.fsf@gmail.com> Date: Mon, 21 Nov 2022 16:52:44 +0100 Message-ID: <87mt8kwbhv.fsf@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: guix-patches@gnu.org List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-patches-bounces+larch=yhetil.org@gnu.org Sender: guix-patches-bounces+larch=yhetil.org@gnu.org X-Migadu-Flow: FLOW_IN X-Migadu-Country: US ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1669046032; 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aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=gmail.com header.s=20210112 header.b=C1SvSORZ; dmarc=fail reason="SPF not aligned (relaxed)" header.from=gmail.com (policy=none); spf=pass (aspmx1.migadu.com: domain of "guix-patches-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-patches-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: 6.99 Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=gmail.com header.s=20210112 header.b=C1SvSORZ; dmarc=fail reason="SPF not aligned (relaxed)" header.from=gmail.com (policy=none); spf=pass (aspmx1.migadu.com: domain of "guix-patches-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-patches-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: 9DB64EE80 X-Spam-Score: 6.99 X-Migadu-Scanner: scn0.migadu.com X-TUID: Kr81aAgUPU12 On Mon, 21 Nov 2022 at 16:02, zimoun wrote: > Well, =E2=80=99mutate-*=E2=80=99 is not really mutating. Maybe I miss so= mething and > from my understanding, this =E2=80=99let*=E2=80=99reads, > > --8<---------------cut here---------------start------------->8--- > (let ((my-target "something")) > (let ((my-target (mutate-once my-target))) > (let ((my-target (mutate-twice my-target))) > (do-something-with my-target)))) > --8<---------------cut here---------------end--------------->8--- Well, it compiles to something similar=E2=80=A6 > And I think, the > pattern is manually doing what =E2=80=99let*=E2=80=99 is already doing fo= r you. =E2=80=A6for instance, it reads, --8<---------------cut here---------------start------------->8--- scheme@(guix-user)> (macroexpand '(let* ((my-target "something") (my-target (mutate-once my-target)) (my-target (mutate-twice my-target))) (do-something-with my-target))) $1=3D # --8<---------------cut here---------------end--------------->8--- Cheers, simon