fennel-language-server

Fennel language server protocol (LSP) support.

fennel-language-server is currently in a very early stage and unreliable. Use it just for an encouraging try.

Installation

Because it is written in pure Rust language, the server should be installed via cargo.

cargo install --git https://github.com/rydesun/fennel-language-server

No demand for the Fennel environment. You don't even need Fennel runtime! (It sounds a little weird but that's the truth)

Integration

NOTE: The executable file is now named fennel-language-server. The former name fennel-ls has been abandoned.

Neovim

For Nvim user to setup fennel-language-server with nvim-lspconfig, add the following code to your configuration.

local lspconfig = require 'lspconfig'
require 'lspconfig.configs'.fennel_language_server = {
  default_config = {
    -- replace it with true path
    cmd = {'/PATH/TO/BINFILE'},
    filetypes = {'fennel'},
    single_file_support = true,
    -- source code resides in directory `fnl/`
    root_dir = lspconfig.util.root_pattern("fnl"),
    settings = {
      fennel = {
        workspace = {
          -- If you are using hotpot.nvim or aniseed,
          -- make the server aware of neovim runtime files.
          library = vim.api.nvim_list_runtime_paths(),
        },
        diagnostics = {
          globals = {'vim'},
        },
      },
    },
  },
}

lspconfig.fennel_language_server.setup{}

Status

There is a long way to go. Features are partially completed:

All features don't work properly on multi-symbols. It means that you cannot hover on the part after the dot, for example.

The following are also known issues:

Macro grammar support is very limited. You may suffer from wrong diagnostics.
Type checking is very weak.
Lack of cross-file operation. Such as require-macros still does not analyzed. You should use import-macros for a clear namespace.

Also See

XeroOl fennel-ls written in pure fennel you may love

https://git.sr.ht/~xerool/fennel-ls

Comments

Macro support

Hello,

I'm currently using Aniseed and some of my own macros, I got the LSP set up but it seems not to recognize any of my macros or those provided by aniseed.

Is this yet to be supported or is there some configuration required?

opened by BerkeleyTrue 1