Statusline integration

Use a built-in function

Coc status (Typescript version and reported issues)

Add section %{coc#status()} to your statusline option.

Function coc#status() includes status information of diagnostic of current buffer and all status messages received from extensions.

Current Function Symbol

If you want to display the name of the current enclosing symbol (eg. function name), you can use the b:coc_current_function buffer-bound variable.

To update its value automatically (updated on CursorHold), you need to set "coc.preferences.currentFunctionSymbolAutoUpdate": true in your config.

Alternatively, if you want to handle the updates manually, you can call CocAction("getCurrentFunctionSymbol"), which will return the symbol name and update the b:coc_current_function variable.

Use a manual function

You can use b:coc_diagnostic_info and g:coc_status to build your own status function, like:

function! StatusDiagnostic() abort
  let info = get(b:, 'coc_diagnostic_info', {})
  if empty(info) | return '' | endif
  let msgs = []
  if get(info, 'error', 0)
    call add(msgs, 'E' . info['error'])
  endif
  if get(info, 'warning', 0)
    call add(msgs, 'W' . info['warning'])
  endif
  return join(msgs, ' '). ' ' . get(g:, 'coc_status', '')
endfunction

Then add %{StatusDiagnostic()} ` to your 'statusline' option.

Integration with eleline.vim

It just works.

Integration with vim-airline

airline now works out of box.

Check out :h airline-coc for customization details.

Integration with lightline.vim

Use configuration like:

function! CocCurrentFunction()
    return get(b:, 'coc_current_function', '')
endfunction

let g:lightline = {
      \ 'colorscheme': 'wombat',
      \ 'active': {
      \   'left': [ [ 'mode', 'paste' ],
      \             [ 'cocstatus', 'currentfunction', 'readonly', 'filename', 'modified' ] ]
      \ },
      \ 'component_function': {
      \   'cocstatus': 'coc#status',
      \   'currentfunction': 'CocCurrentFunction'
      \ },
      \ }