GNU bug report logs - #72203
31.0.50; browse-url-emacs (url-file-handler) errors when eglot is loaded

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From: Andreas Schwab <schwab <at> linux-m68k.org>
To: Dmitry Gutov <dmitry <at> gutov.dev>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 72203 <at> debbugs.gnu.org, João Távora <joaotavora <at> gmail.com>, Nick OBrien <nick4f42 <at> proton.me>
Subject: bug#72203: 31.0.50; browse-url-emacs (url-file-handler) errors when eglot is loaded
Date: Sun, 21 Jul 2024 08:57:24 +0200

On Jul 21 2024, Dmitry Gutov wrote:

> On 20/07/2024 03:56, Nick OBrien via Bug reports for GNU Emacs, the Swiss
> army knife of text editors wrote:
>>        nil(...)
>>        url-directory-files("https://www.gnu.org/licenses/"  nil ... t nil)
>>        apply(url-directory-files ("https://www.gnu.org/licenses/"  nil ... t nil))
>>        url-file-handler(directory-files"https://www.gnu.org/licenses/"  nil ... t nil)
>>        directory-files("https://www.gnu.org/licenses/"  nil ... t)
>>        #f(compiled-function (d) #<bytecode 0x183c21e239c1e2a3>)("https://www.gnu.org/licenses/")
>>        locate-dominating-file("https://www.gnu.org/licenses/"  #f(compiled-function (d) #<bytecode 0x183c21e239c1e2a3>))
>
> Is it possible that url-file-handler is misbehaving here?
>
> The first lines look sensible, and then at the end we call nil as a
> function.

That's because the "https" URL scheme backend does not define the
url-https-directory-files function.  The function created by
url-handlers-create-wrapper does not handle that situation specially, it
just lets the error happen.

-- 
Andreas Schwab, schwab <at> linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
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