vim-gutentags VS coc.nvim

https://github.com/ludovicchabant/vim-gutentags/issues/139 has some background.

Hi everyone. I'm looking to have a better setup for Rust in neovim. I do have rust-analyzer installed for useful lsp things but I was hoping to get tags working for it as well. I was using vim-gutentags (https://github.com/ludovicchabant/vim-gutentags) for navigating useful functions and stuff but couldn't quite get it to work for rust. Is there a simple way to do it or do I need rusty-tags and some aucommand to get it to work?

use tags, I like https://github.com/ludovicchabant/vim-gutentags for this. I might use my local .vimrc to tweak the config (exclude compiled source files and other uninteresting things)

guttentag: https://github.com/ludovicchabant/vim-gutentags

Without more information, it's hard to point you in the right direction. The tags file could be out-of-date, in which case you can try to re-generate it (vim-gutentags for tags auto-generation). You could have 2 function declarations with the same name, in which case you can try :tag to cycle through tags (supports partials, like :tag F which will suggest FOO, FAR, FAB ...etc) or :tag to see a list of possible options (supports partials, like :tag F which will list FOO, FAR, FAB, ...etc) for various matching tags you can jump to (fzf.vim provides a tags fuzzy finder via :Tags). Maybe you're experiencing :h tag-priority?

ludovicchabant/vim-gutentags - Tags

You can then use :cnext and :cprev (or focusing the window and selecting an entry) to navigate between them.

As others have stated, you can also use ctags (plugins like https://github.com/ludovicchabant/vim-gutentags are useful for refreshing tags in a project), but for some languages you may need to add a tag definition (e.g. for something like rust or zig). For older languages like C you should be fine.

Not sure if it will help in this case, but I also depend on ctags for when the lsp fails (e.g. code it doesn't compile for some reason). Here you let a program create a tags file, e.g. I use https://github.com/universal-ctags/ctags (it seems it can parse json files, though I'm not sure what kind of tags are generated from this and if they will be useful to you) with https://github.com/ludovicchabant/vim-gutentags to update the tags file. The tags file just contains symbol names with locations where they are defined, and vim has builtin functionality to use these tags files :h tag and they (can) work filetype independent. For example if I mention a C type in a markdown document I can just use ctrl-[ to jump to its definition in the C source file. Possibly you can generate tags files yourself from the json files to help with this, the tags file format is not very complicated. Tags also are not very intelligent and depend on unique names for them to work well, there is the :h g_CTRL-] that can help, but for symbols that are very common (e.g. init or something that potentially has like 20+ definitions) it doesn't really work.

As well as its own plugins Vim/NeoVim can use VSCode's LSPs, DAPs and extensions either directly or via plugins like CoC[1] and Mason[2].

I would be surprised if emacs couldn't do the same.

1. https://github.com/neoclide/coc.nvim

The most famous TypeScript one probably is coc.nvim

It is flatly the wrong mindset to think of vim as an IDE. vim is a code editor: get in, make change, get out. Consider vim koans, which are a fun little read. You can throw coc.nvim at Neovim, along with a few other bits to give you a Good Enough setup, but vim isn't and will never be an IDE.

I just did a fresh reinstall of CoC, on a newer version of Neovim. I'm now seeing something I hadn't seen before, which CoC calls "inlay hints". They look like this:

I'm currently on an old setup (using coc and polyglot) and nvim v0.6.1. I'll be updating to a more modern setup within next year, using the native lsp and building nvim more frequently. But that's not today.

coc.nvim

There are some plugins which have the best documentations I have ever seen, but you need to read it from the Vim.

Example of coc.nvim: https://github.com/neoclide/coc.nvim/blob/master/doc/coc.txt

Actually you can with coc.nvim & coc-sh. So long as shellcheck is also installed and in PATH, it'll integrate with coc/vim just fine.

When you install an extension it runs an npm install or yarn, iirc, which is going to be problematic for you being offline. I was going to say you could copy that ~/.config/coc folder directly to the other machine but yeah, Windows, no idea. You see here https://github.com/neoclide/coc.nvim/wiki/Using-coc-extensions

You can try https://github.com/neoclide/coc.nvim, the pre-requisite is to install nodeJS, then to install all the languages LSP. This works for me for Angular, Rust, JavaScript, Vimscript, etc