patch 8.2.4447: Vim9: can still use s:var in a compiled function Commit: https://github.com/vim/vim/commit/afa048f0d4b5d63f2192c9ba340a9eb8b0822985 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Feb 22 20:43:36 2022 +0000 patch 8.2.4447: Vim9: can still use s:var in a compiled function Problem: Vim9: can still use s:var in a compiled function. Solution: Disallow using s:var for Vim9 script. (closes https://github.com/vim/vim/issues/9824)

--- a/src/vim9compile.c
+++ b/src/vim9compile.c
@@ -1331,6 +1331,12 @@ compile_lhs(
 		    char_u	*rawname = lhs->lhs_name
 					   + (lhs->lhs_name[1] == ':' ? 2 : 0);
 
+		    if (script_namespace && current_script_is_vim9())
+		    {
+			semsg(_(e_cannot_use_s_colon_in_vim9_script_str),
+								    var_start);
+			return FAIL;
+		    }
 		    if (is_decl)
 		    {
 			if (script_namespace)