patch 8.2.1037: Vim9: crash when using line continuation inside :def Commit: https://github.com/vim/vim/commit/acd4c5e914f8a06745624ba585f3d06d5faf4ddd Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jun 22 19:39:03 2020 +0200 patch 8.2.1037: Vim9: crash when using line continuation inside :def Problem: Vim9: crash when using line continuation inside :def. Solution: Check for no more lines available.

" Vim compiler file
" Compiler:	Unit testing tool for Python
" Maintainer:	Max Ischenko <mfi@ukr.net>
" Last Change: 2004 Mar 27

if exists("current_compiler")
  finish
endif
let current_compiler = "pyunit"

if exists(":CompilerSet") != 2		" older Vim always used :setlocal
  command -nargs=* CompilerSet setlocal <args>
endif

CompilerSet efm=%C\ %.%#,%A\ \ File\ \"%f\"\\,\ line\ %l%.%#,%Z%[%^\ ]%\\@=%m