From: Eli Zaretskii <eliz@gnu.org>
To: "Óscar Fuentes" <ofv@wanadoo.es>
Cc: emacs-devel@gnu.org
Subject: Re: Why `read-buffer` is implemented in C?
Date: Sun, 05 May 2024 19:26:56 +0300 [thread overview]
Message-ID: <86msp4cjhr.fsf@gnu.org> (raw)
In-Reply-To: <87seywmfpm.fsf@telefonica.net> (message from Óscar Fuentes on Sun, 05 May 2024 17:38:29 +0200)
> From: Óscar Fuentes <ofv@wanadoo.es>
> Date: Sun, 05 May 2024 17:38:29 +0200
>
> While diagnosing a problem, I stumbled on read-buffer. Why is it
> implemented in C? I mean, why is it *still* implemented in C?
Because we didn't have a good enough reason to move it to Lisp. Such
moves are not really trivial; for starters, you need to make sure that
its Lisp definition will be loaded in loadup before the first Lisp
file that uses read-buffer. And that's just the tip of the iceberg
(e.g., I see 2 places in C that call read-buffer, so we'd need to make
sure these two places are not used before the Lisp definition is
loaded; etc. etc.).
So we only do such things when we have a good reason, whose advantages
can justify the potential trouble such changes can (and do) cause.
Otherwise, it's simply un-economical.
prev parent reply other threads:[~2024-05-05 16:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-05 15:38 Why `read-buffer` is implemented in C? Óscar Fuentes
2024-05-05 16:26 ` Eli Zaretskii [this message]
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