No support for neovim / Coc

[beyarkay]

Bug Report

Current behavior

Currently, there's no way to get language server in neovim via Coc

Expected behavior

It would be amazing to have hints and language support in neovim via Coc

Environment

• Language Server version (commit hash): None applicable
• CLI version used (output of arduino-cli version): None applicable
• OS and platform: MacOS 12

[drank40]

It used to work flawlessy, this is a regression

[beyarkay]

@drank40 can you confirm the steps you used to you used to install it as a language server?

[drank40]

I followed
https://github.com/neoclide/coc.nvim/wiki/Language-servers#[Arduino](https://github.com/neoclide/coc.nvim/wiki/Language-servers#Arduino)

I just added this lines to my coc-settings.json and it worked, but it appears to be broken now, since the language server closes the connection at every request

[drank40]

See

neoclide/coc.nvim#3594 (comment)

[atrosekta]

same here too, coc's logs says the server is repeatedly stopping as soon as it start ,same with nvim lsp, tho i can launch the server "by hand" without it stopping

[chmanie]

For me, using nvim-lsp, it does run for some time but then crashes intermittently. Are we talking about the same issue or is this different behavior?

[dbmzzo]

For me, using nvim-lsp, it does run for some time but then crashes intermittently.

This is the behavior I'm seeing as well, using nvim-lspconfig.

[beyarkay]

@per1234 @cmaglie is this issue likely to be fixed in the near future? Or alternatively, is the repository accepting PRs?

[per1234]

is the repository accepting PRs?

Yes. We have already received some high quality PRs which resulted in valuable contributions to the Arduino Language Server project.

One thing that should be noted is that the primary purpose of this project is to serve as the language server component of Arduino IDE 2.x. The use of the standardized language server protocol makes it a general purpose tool that can be used in other applications and it is very cool that people are already using it in such alternative applications. However, that use case will always be a lower priority for the project relative to the use in the development tools created by Arduino such as Arduino IDE 2.x.

[beyarkay]

So reading between the lines, support for non-arduino editors is not available, but the project is willing to accept (high quality) PRs if they add that support?

(I'll take silence to mean a yes)

[beyarkay]

Sorry I'm realising that comment could come across a little aggressive, which is not my intention at all. Just wanting to get a clear idea of the state of support for non-arduino features before I go and try fix the problem myself.

Thanks for the help!

[per1234]

Closing a duplicate of the other issues we have about neovim/coc:

• LS wont work on neovim: "Panic: unimplemented request: workspace/semanticTokens/refresh" #155
• neovim LSP <-> arduino-language-server crashes on textDocument/definition method. #159
• [nvim + arduino-language-server]: Clang-related error #152
• Server Fails with Neovim LSP - ArduinoCLI daemon address and instance number must be set. #109
• flag provided but not defined error. #162