Haxe + LSP + Neovim

haxelsp.md

Haxe + LSP + Neovim

TODO: documentation

Using latest git version of haxe-languageserver.

haxelsp.vim

function! k#haxelsp#DisplayServerConfig(serverConfig)
  call LanguageClient#Notify('haxe/didChangeDisplayServerConfig', a:serverConfig)
endfunction

function! k#haxelsp#SelectHxml(hxml)
  if filereadable(a:hxml)
    call LanguageClient#Notify('haxe/didChangeDisplayArguments', {'arguments': [a:hxml]})
  endif
endfunction

function! k#haxelsp#HxmlSelector()
  call fzf#vim#files('', {'source': 'ag -g ".hxml"', 'down': '40%', 'sink': function('k#haxelsp#SelectHxml')})
endfunction

function! k#haxelsp#SetConfig()
  if &ft=="haxe"
    " Use local server-config if any
    if filereadable('.vim/haxe-lsp-displayserver.json')
      let serverConfig = json_decode(system("cat .vim/haxe-lsp-displayserver.json"))
      call k#haxelsp#DisplayServerConfig(serverConfig)
    endif

    " Use local hxml config instead of build.hxml if any
    if filereadable('.vim/default-hxml')
      call k#haxelsp#SelectHxml(json_decode(system('cat .vim/default-hxml')))
    else
      call k#haxelsp#SelectHxml('build.hxml')
    endif

    " Use local haxe settings if any
    if filereadable('.vim/haxe-lsp-settings.json')
      let haxeConfig = json_decode(system('cat .vim/haxe-lsp-settings.json'))
    else
      let haxeConfig = json_decode(system('cat ~/.config/nvim/haxelsp/settings-haxe.json'))
    endif
    call LanguageClient#Notify('workspace/didChangeConfiguration', {'settings': {'haxe': haxeConfig}})
  endif
endfunction

init.vim

call plug#begin()
" ...
Plug 'autozimu/LanguageClient-neovim', {'branch': 'next', 'do': 'bash install.sh'}
Plug 'roxma/nvim-completion-manager'
Plug 'jdonaldson/vaxe'
Plug 'junegunn/fzf'
Plug 'junegunn/fzf.vim'
" ...
call plug#end()

" ...

" Language server protocol
let g:LanguageClient_serverCommands = {
  \ 'haxe': ['node', '/git/haxe-languageserver/bin/server.js'],
  \ }
let g:LanguageClient_autoStart = 1
let g:LanguageClient_settingsPath = '~/.config/nvim/haxelsp/settings.json'
let g:LanguageClient_loadSettings = 1
" let g:LanguageClient_loggingLevel = 'DEBUG'

" Auto config Haxe LSP
augroup LanguageClient_config
  autocmd!
  autocmd User LanguageClientStarted call k#haxelsp#SetConfig()
augroup END

settings-haxe.json

{
  "enableDiagnostics": true,
  "diagnosticsPathFilter": "",
  "enableCodeLens": true,
  "displayPort": "auto",
  "buildCompletionCache": true,
  "codeGeneration": {},
  "format": {}
}

settings.json

{
  "initializationOptions": {
    "displayServerConfig": {
      "env": {},
      "path": "/usr/bin/haxe",
      "arguments": []
    }
  }
}