patch 8.2.3011: Vim9: cannot get argument values during debugging Commit: https://github.com/vim/vim/commit/6bc30b05e6081bcaece6d1a7fcfca238ea5a194f Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jun 16 19:19:55 2021 +0200 patch 8.2.3011: Vim9: cannot get argument values during debugging Problem: Vim9: cannot get argument values during debugging. Solution: Lookup names in the list of arguments. Put debug instruction halfway for command.

" Provide 'PrintVer' command to print the interface versions.

func s:print_ver(lang, ...)
  if has(a:lang)
    exec a:lang join(a:000)
  else
    echo 'N/A'
  endif
  echo ''
endfunc

command -nargs=+ PrintVer call <SID>print_ver(<f-args>)