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Re: quoted buffer object

From: Johan Bockgård
Subject: Re: quoted buffer object
Date: Thu, 23 Aug 2007 15:16:08 +0200
User-agent: Gnus/5.110007 (No Gnus v0.7) Emacs/22.1.50 (gnu/linux)

Thien-Thi Nguyen <address@hidden> writes:

> in vc.el:999, i see:
>   (with-current-buffer ',(current-buffer)
> weird.  here are some experiments in *scratch*:
>   (bufferp (current-buffer))
>   t
>   (bufferp (car `(,(current-buffer))))
>   t
>   (bufferp (car `(',(current-buffer))))
>   nil
> i conclude the code as it stands does not DTRT.

But 'x *evaluates* to x, so the quote is harmless (though superfluous,
since buffer objects are self-evaluating).

  `(lambda ()
     (with-current-buffer ',(current-buffer) ...))

     =>  (lambda nil (with-current-buffer '#<buffer foo> ...))

which will DTRT.

Johan Bockgård

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