一种使用Vim CoC显示缓冲区一般无效状态的方法

" 启用CoC插件
let g:coc_global_extensions = ['coc-xxxxxxxx']  " 根据需要替换为相应的语言扩展

" 缓冲区无效状态的显示设置
autocmd BufEnter * if !&modifiable | call coc#buf_enter() | endif

function! s:coc_buf_enter() abort
  if empty(expand('%:e')) | return | endif
  let filetype = &filetype
  let buftype = &buftype
  let is_invalid = coc#util#get_float(coc#util#get('diagnostics', 'float_open_command')).valid > 0
  let cmd = 'CocDisable | setlocal signcolumn=no'
  let sign_group = 'CocInvalid'
  let sign_text = ''
  if !empty(&spell)
    let spell_state = nvim_buf_get_option(0, 'spell')
    let sign_text = (spell_state ==? 'fast') ? '!' : (spell_state ==? 'medium') ? '?' : ''
    let sign_group = 'CocSpell'
  endif
  let file_path = expand('%:p')
  let bufnr = bufnr('%')
  if is_invalid | execute printf("sign define %s text=%s texthl=%s linehl=%s numhl=%s", sign_group, sign_text, 'CocInvalid', 'CocInvalid', 'CocInvalid') | execute printf("sign place %d line=%d name=%s file=%s", bufnr, line('$'), sign_group, file_path) | endif
  execute printf("command! -buffer -nargs=0 %s %s | setlocal modifiable", cmd, cmd)
endfunction

augroup CoCInvalidBuf
  au!
  au BufEnter * call s:coc_buf_enter()
  au FileType qf call s:coc_buf_enter()
  au User CocJumpPlaceholder call s:coc_buf_enter()
  au User CocQuickfixChange call s:coc_buf_enter()
  au User CocCodeActionChange call s:coc_buf_enter()
  au User CocDiagnosticChange call s:coc_buf_enter()
augroup end