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From: "Zhu Zihao" <all_but_last@163.com>
To: emacs-devel@gnu.org
Subject: Struct defined by cl-defstruct with :noinline failed to set slot using setf
Date: Mon, 2 Sep 2019 13:03:31 +0800 (CST)	[thread overview]
Message-ID: <1311fef9.a334.16cf05b4e08.Coremail.all_but_last@163.com> (raw)

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Consider following code at dd162a3f226

(cl-defstruct (a (:noinline t)) b c)

(let ((a (make-a :b 1 :c 2)))
  (setf (a-b a) 1))


Get an error "Symbol’s function definition is void: \(setf\ a-b\)".

IMO, the problem is when :noinline was given, cl-defstruct will use defun
instead of cl-defsubst to create getter, which can't be handled by "setf"'s form
expansion automatically. If we want to allow user to modify slots of a struct

defined with :noinline argument, we should define the setters manually.


--


Zihao

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             reply	other threads:[~2019-09-02  5:03 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-02  5:03 Zhu Zihao [this message]
2019-09-02 10:44 ` Struct defined by cl-defstruct with :noinline failed to set slot using setf Zhu Zihao
2019-09-02 12:57 ` Stefan Monnier
2019-09-02 13:10   ` Zhu Zihao

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