patch 8.2.3194: Vim9: argument types are not checked at compile time Commit: https://github.com/vim/vim/commit/cd9172077bc8c0aafddf2e5367cc0ae2c00c8ff7 Author: Yegappan Lakshmanan <yegappan@yahoo.com> Date: Wed Jul 21 19:09:09 2021 +0200 patch 8.2.3194: Vim9: argument types are not checked at compile time Problem: Vim9: argument types are not checked at compile time. Solution: Add several more type checks, simplify some. (Yegappan Lakshmanan, closes #8598)

" 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>)