patch 8.2.1338: Vim9: assigning to script-local variable doesn't check type Commit: https://github.com/vim/vim/commit/8e4c8c853e3ffbd9258f89180692879ec6bce72b Author: Bram Moolenaar <Bram@vim.org> Date: Sat Aug 1 15:38:38 2020 +0200 patch 8.2.1338: Vim9: assigning to script-local variable doesn't check type Problem: Vim9: assigning to script-local variable doesn't check type. Solution: Use the type. (issue https://github.com/vim/vim/issues/6591)

--- a/src/vim9execute.c
+++ b/src/vim9execute.c
@@ -1422,6 +1422,11 @@ call_def_function(
 		    dict_T	*dict = tv_dict->vval.v_dict;
 		    dictitem_T	*di;
 
+		    if (dict == NULL)
+		    {
+			emsg(_(e_dictnull));
+			goto on_error;
+		    }
 		    if (key == NULL)
 			key = (char_u *)"";
 		    tv = STACK_TV_BOT(-3);