From: Filippo Argiolas <filippo.argiolas@gmail.com>
To: rms@gnu.org
Cc: Stefan Kangas <stefankangas@gmail.com>,
emacs-devel@gnu.org, eliz@gnu.org
Subject: Re: [NonGNU ELPA] new package: clangd-inactive-regions
Date: Mon, 4 Nov 2024 08:17:13 +0100 [thread overview]
Message-ID: <CAOdrLG+3R2U=npGvFTt5FFS1wbCqYgThbHRqf7hS=RHzWR0WgQ@mail.gmail.com> (raw)
In-Reply-To: <E1t7pje-0003u6-4x@fencepost.gnu.org>
On Mon, Nov 4, 2024 at 6:34 AM Richard Stallman <rms@gnu.org> wrote:
> > > It's an eglot extension that listens to clangd inactiveRegions
> > > notifications and shades inactive code accordingly. It's useful to
> > > highlight disabled code sections in a LSP aware way, honoring current
> > > building options and defines.
>
> Does "inactive region" mean unreachable code? I am guessin so.
>
> Is there a standard way for lamguage servers to report unreachable code?
> Could we make Emacs recognize that way? Then eglot could handle it
> for any language, and it would not be specific to clangd.
In this context it means unreachable code as disabled by the
preprocessor stage, e.g. code under a currently disabled ifdef branch.
LSP advantage here is providing knowledge about how a file is compiled
with proper build time flags and defines for current build
configuration.
At the moment it's a clangd specific extension, there was some plan[1]
for standard LSP inclusion but I'm not sure it went anywhere.
Also, does this specific meaning make sense for non c/c++/preprocessed
languages?
I believe unreachable in the control flow/static analysis sense can
already be achieved with normal LSP diagnostics. If I am not mistaken
clangd already provides diagnostics for this when clang-tidy is
enabled.
1. https://github.com/clangd/clangd/issues/132#issuecomment-1722327517
next prev parent reply other threads:[~2024-11-04 7:17 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-01 9:02 [NonGNU ELPA] new package: clangd-inactive-regions Filippo Argiolas
2024-11-02 9:13 ` Gerd Möllmann
2024-11-03 7:53 ` Filippo Argiolas
2024-11-03 8:43 ` Gerd Möllmann
2024-11-02 21:52 ` Stefan Kangas
2024-11-02 22:35 ` Felician Nemeth
2024-11-03 1:21 ` Stefan Kangas
2024-11-03 8:08 ` Filippo Argiolas
2024-11-03 15:07 ` Stefan Kangas
2024-11-04 17:36 ` Felician Nemeth
2024-11-03 5:59 ` Eli Zaretskii
2024-11-04 17:40 ` Felician Nemeth
2024-11-03 5:46 ` Eli Zaretskii
2024-11-04 5:34 ` Richard Stallman
2024-11-04 7:17 ` Filippo Argiolas [this message]
2024-11-04 12:02 ` Philip Kaludercic
2024-11-05 0:42 ` Filippo Argiolas
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