forked from OSchip/llvm-project
124 lines
5.9 KiB
ReStructuredText
124 lines
5.9 KiB
ReStructuredText
============
|
|
Clangd
|
|
============
|
|
|
|
.. contents::
|
|
|
|
.. toctree::
|
|
:maxdepth: 1
|
|
|
|
:program:`Clangd` is an implementation of the `Language Server Protocol
|
|
<https://github.com/Microsoft/language-server-protocol>`_ leveraging Clang.
|
|
Clangd's goal is to provide language "smartness" features like code completion,
|
|
find references, etc. for clients such as C/C++ Editors.
|
|
|
|
Using Clangd
|
|
==================
|
|
|
|
:program:`Clangd` is not meant to be used by C/C++ developers directly but
|
|
rather from a client implementing the protocol. A client would be typically
|
|
implemented in an IDE or an editor.
|
|
|
|
At the moment, `Visual Studio Code <https://code.visualstudio.com/>`_ is mainly
|
|
used in order to test :program:`Clangd` but more clients are likely to make
|
|
use of :program:`Clangd` in the future as it matures and becomes a production
|
|
quality tool. If you are interested in trying :program:`Clangd` in combination
|
|
with Visual Studio Code, you can start by `installing Clangd`_ or
|
|
`building Clangd`_, then open Visual Studio Code in the clangd-vscode folder and
|
|
launch the extension.
|
|
|
|
Installing Clangd
|
|
==================
|
|
|
|
Packages are available for debian-based distributions, see the `LLVM packages
|
|
page <http://apt.llvm.org/>`_. :program:`Clangd` is included in the
|
|
`clang-tools` package.
|
|
However, it is a good idea to check your distribution's packaging system first
|
|
as it might already be available.
|
|
|
|
Otherwise, you can install :program:`Clangd` by `building Clangd`_ first.
|
|
|
|
Building Clangd
|
|
==================
|
|
|
|
You can follow the instructions for `building Clang
|
|
<https://clang.llvm.org/get_started.html>`_ but "extra Clang tools" is **not**
|
|
optional.
|
|
|
|
Current Status
|
|
==================
|
|
|
|
Many features could be implemented in :program:`Clangd`.
|
|
Here is a list of features that could be useful with the status of whether or
|
|
not they are already implemented in :program:`Clangd` and specified in the
|
|
Language Server Protocol. Note that for some of the features, it is not clear
|
|
whether or not they should be part of the Language Server Protocol, so those
|
|
features might be eventually developed outside :program:`Clangd` or as an
|
|
extension to the protocol.
|
|
|
|
+-------------------------------------+------------+----------+
|
|
| C/C++ Editor feature | LSP | Clangd |
|
|
+=====================================+============+==========+
|
|
| Formatting | Yes | Yes |
|
|
+-------------------------------------+------------+----------+
|
|
| Completion | Yes | Yes |
|
|
+-------------------------------------+------------+----------+
|
|
| Diagnostics | Yes | Yes |
|
|
+-------------------------------------+------------+----------+
|
|
| Fix-its | Yes | Yes |
|
|
+-------------------------------------+------------+----------+
|
|
| Go to Definition | Yes | Yes |
|
|
+-------------------------------------+------------+----------+
|
|
| Signature Help | Yes | Yes |
|
|
+-------------------------------------+------------+----------+
|
|
| Document Highlights | Yes | Yes |
|
|
+-------------------------------------+------------+----------+
|
|
| Rename | Yes | Yes |
|
|
+-------------------------------------+------------+----------+
|
|
| Source hover | Yes | No |
|
|
+-------------------------------------+------------+----------+
|
|
| Find References | Yes | No |
|
|
+-------------------------------------+------------+----------+
|
|
| Code Lens | Yes | No |
|
|
+-------------------------------------+------------+----------+
|
|
| Document Symbols | Yes | No |
|
|
+-------------------------------------+------------+----------+
|
|
| Workspace Symbols | Yes | No |
|
|
+-------------------------------------+------------+----------+
|
|
| Syntax and Semantic Coloring | No | No |
|
|
+-------------------------------------+------------+----------+
|
|
| Code folding | No | No |
|
|
+-------------------------------------+------------+----------+
|
|
| Call hierarchy | No | No |
|
|
+-------------------------------------+------------+----------+
|
|
| Type hierarchy | No | No |
|
|
+-------------------------------------+------------+----------+
|
|
| Organize Includes | No | No |
|
|
+-------------------------------------+------------+----------+
|
|
| Quick Assist | No | No |
|
|
+-------------------------------------+------------+----------+
|
|
| Extract Local Variable | No | No |
|
|
+-------------------------------------+------------+----------+
|
|
| Extract Function/Method | No | No |
|
|
+-------------------------------------+------------+----------+
|
|
| Hide Method | No | No |
|
|
+-------------------------------------+------------+----------+
|
|
| Implement Method | No | No |
|
|
+-------------------------------------+------------+----------+
|
|
| Gen. Getters/Setters | No | No |
|
|
+-------------------------------------+------------+----------+
|
|
|
|
Getting Involved
|
|
==================
|
|
|
|
A good place for interested contributors is the `Clang developer mailing list
|
|
<http://lists.llvm.org/mailman/listinfo/cfe-dev>`_.
|
|
If you're also interested in contributing patches to :program:`Clangd`, take a
|
|
look at the `LLVM Developer Policy
|
|
<http://llvm.org/docs/DeveloperPolicy.html>`_ and `Code Reviews
|
|
<http://llvm.org/docs/Phabricator.html>`_ page. Contributions of new features
|
|
to the `Language Server Protocol
|
|
<https://github.com/Microsoft/language-server-protocol>`_ itself would also be
|
|
very useful, so that :program:`Clangd` can eventually implement them in a
|
|
conforming way.
|