I want to have completion for my custom C language headers, but I cannot see how to add it. I use CoC and it does help with the language headers, but not the ones in my project folder. How can I add them?

Posted in: s/vim

🌲 Odintsoff

2023-08-07 · 9 months ago

9 Comments ↓

🦀 jeang3nie · 2023-08-08 at 14:28:

Are you on original Vim? I'm using NeoVim and the nvim-cmp plugin does exactly what you're asking, but it's written in Lua specifically for NeoVim.

🚀 stack [mod] · 2023-08-08 at 14:59:

@jeang3nie: do you know if original vim's new Lua support is compatible with NeoVim's Lua? I've been avoiding NeoVim after my Common Lisp bindings uncovered many issues in display protocols and maintainers were saying really idiotic argumentative stuff...

🐝 Addison · 2023-08-08 at 19:45:

YouCompleteMe can do this

🌲 Odintsoff [OP] · 2023-08-09 at 00:20:

@jeang3nie Original Vim. Thinking about moving to neovim though.

🌲 Odintsoff [OP] · 2023-08-09 at 00:21:

@Addison I also tried using YCM, but no success to make it read my own header files. Maybe conflicting with CoC.

🐦 Arkaeriit · 2023-08-10 at 18:35:

@Addison How can one do this with YCM?

🐝 Addison · 2023-08-10 at 18:51:

@Arkaeriit I'm assuming that @Odintsoff is asking about code-completion for things declared in headers.

I only know how to do this with CMake, so YMMV but I know that YCM has other ways of configuring this.

If in your CMakeLists.txt you enable CMAKE_EXPORT_COMPILE_COMMANDS, CMake will create a file called compile_commands.json in your build directory. If you copy that JSON file to the root of your source tree, YCM will read the flags it contains and use them for completions.

So if my CMake config contains something like

then compile_commands.json will contain

And YCM will provide completions for that header.

🐦 Arkaeriit · 2023-08-11 at 18:08:

@Addison Thanks for the tip. It will be a good starting point.

🌲 Odintsoff [OP] · 2023-08-22 at 00:09:

Thanks all! I will try the tips provided and give some feedback. Thanks again!