GNU bug report logs - #64888
28.2; jsonrpc.el; Function jsonrpc-error's error code is not correct

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: YI YUE <includeyy123 <at> gmail.com>
To: "bug-gnu-emacs <at> gnu.org" <bug-gnu-emacs <at> gnu.org>
Subject: 28.2; jsonrpc.el; Function jsonrpc-error's error code is not correct
Date: Thu, 27 Jul 2023 15:56:20 +0900

[Message part 1 (text/html, inline)]

Message #8 received at 64888 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: YI YUE <includeyy123 <at> gmail.com>, João Távora
 <joaotavora <at> gmail.com>
Cc: 64888 <at> debbugs.gnu.org
Subject: Re: bug#64888: 28.2; jsonrpc.el;
 Function jsonrpc-error's error code is not correct
Date: Fri, 28 Jul 2023 09:57:56 +0300

> Date: Thu, 27 Jul 2023 15:56:20 +0900
> From: YI YUE <includeyy123 <at> gmail.com>
> 
> I noticed that in jsonrpc.el, the function `jsonrpc-error' will singal a
> `jsonrpc-error' error
> 
> with error code 32603, but in JSON-RPC 2.0 Specification[1], the error code is
> -32603

João, any comments?  It looks like a simple typo to me, or am I
missing something?

Message #11 received at 64888 <at> debbugs.gnu.org (full text, mbox):

From: João Távora <joaotavora <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 64888 <at> debbugs.gnu.org, YI YUE <includeyy123 <at> gmail.com>
Subject: Re: bug#64888: 28.2; jsonrpc.el; Function jsonrpc-error's error code
 is not correct
Date: Fri, 28 Jul 2023 09:24:45 +0100

On Fri, Jul 28, 2023 at 7:57 AM Eli Zaretskii <eliz <at> gnu.org> wrote:
>
> > Date: Thu, 27 Jul 2023 15:56:20 +0900
> > From: YI YUE <includeyy123 <at> gmail.com>
> >
> > I noticed that in jsonrpc.el, the function `jsonrpc-error' will singal a
> > `jsonrpc-error' error
> >
> > with error code 32603, but in JSON-RPC 2.0 Specification[1], the error code is
> > -32603
>
> João, any comments?  It looks like a simple typo to me, or am I
> missing something?

Yes, it's a typo and an outright bug, according to the docstring,
which is correct.

When an Elisp JSONRPC endpoint request handler explicitly signals an
error with the jsonrpc-error function, the mistaken recorded
code is  sent over the wire to the other endpoint.  When it signals
any other error (more common), the correct -32603 is sent.

So this erroneous code is not displayed to the user
(unless debug-on-error is on) nor is it something
that the jsonrpc.el client application can reasonably consume
and hypothetically need to be bug-compatible with.

However, other arbitrary JSONRPC endpoints (outside of Emacs)
may theoretically have grown some expectation of the bugged value
it they're only ever talking to jsonrpc.el backed endpoints.
But I've never seen this and I don't think this is too likely.

So I'd say we should probably fix this without too much worry.

João

Message #16 received at 64888-done <at> debbugs.gnu.org (full text, mbox):

From: João Távora <joaotavora <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>, 64888-done <at> debbugs.gnu.org
Cc: YI YUE <includeyy123 <at> gmail.com>
Subject: Re: bug#64888: 28.2; jsonrpc.el; Function jsonrpc-error's error code
 is not correct
Date: Sat, 29 Jul 2023 11:16:29 +0100

I've fixed this in master, commit 2af83f215ce83eda5a3eba21c352e6cd7435fbb1.

Closing.

On Fri, Jul 28, 2023 at 9:24 AM João Távora <joaotavora <at> gmail.com> wrote:
>
> On Fri, Jul 28, 2023 at 7:57 AM Eli Zaretskii <eliz <at> gnu.org> wrote:
> >
> > > Date: Thu, 27 Jul 2023 15:56:20 +0900
> > > From: YI YUE <includeyy123 <at> gmail.com>
> > >
> > > I noticed that in jsonrpc.el, the function `jsonrpc-error' will singal a
> > > `jsonrpc-error' error
> > >
> > > with error code 32603, but in JSON-RPC 2.0 Specification[1], the error code is
> > > -32603
> >
> > João, any comments?  It looks like a simple typo to me, or am I
> > missing something?
>
> Yes, it's a typo and an outright bug, according to the docstring,
> which is correct.
>
> When an Elisp JSONRPC endpoint request handler explicitly signals an
> error with the jsonrpc-error function, the mistaken recorded
> code is  sent over the wire to the other endpoint.  When it signals
> any other error (more common), the correct -32603 is sent.
>
> So this erroneous code is not displayed to the user
> (unless debug-on-error is on) nor is it something
> that the jsonrpc.el client application can reasonably consume
> and hypothetically need to be bug-compatible with.
>
> However, other arbitrary JSONRPC endpoints (outside of Emacs)
> may theoretically have grown some expectation of the bugged value
> it they're only ever talking to jsonrpc.el backed endpoints.
> But I've never seen this and I don't think this is too likely.
>
> So I'd say we should probably fix this without too much worry.
>
> João



-- 
João Távora

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