patch 8.2.0222: Vim9: optional function arguments don't work yet Commit: https://github.com/vim/vim/commit/170fcfcf250954d76fca86e3fed088ddfdb49383 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Feb 6 17:51:35 2020 +0100 patch 8.2.0222: Vim9: optional function arguments don't work yet Problem: Vim9: optional function arguments don't work yet. Solution: Implement optional function arguments.

--- a/src/userfunc.c
+++ b/src/userfunc.c
@@ -200,6 +200,7 @@ get_function_args(
 	    {
 		typval_T	rettv;
 
+		// find the end of the expression (doesn't evaluate it)
 		any_default = TRUE;
 		p = skipwhite(p) + 1;
 		p = skipwhite(p);