patch 8.2.3023: Vim9: arguments for execute() not checked at compile time Commit: https://github.com/vim/vim/commit/ca81f0e834640cf3465b3b742e60c12e8a0956f2 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jun 20 14:41:01 2021 +0200 patch 8.2.3023: Vim9: arguments for execute() not checked at compile time Problem: Vim9: arguments for execute() not checked at compile time. Solution: Add a function to check the argument types.

" 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>)