commit e69f6d044c420d41dced9ba96a3b90f25788e39a
author Bram Moolenaar <Bram@vim.org> Wed Apr 01 22:11:01 2020 +0200
committer Bram Moolenaar <Bram@vim.org> Wed Apr 01 22:11:01 2020 +0200
tree 93ea671c8ff74e5ba89808a4561f36cdfc5f4b5c
parent a8c1770469504ae66c80bbdb03b6b31641215848

patch 8.2.0493: Vim9: some error messages not tested

Problem:    Vim9: some error messages not tested.
Solution:   Add more tests.  Fix uncovered bugs.

src/vim9execute.c

diff --git a/src/vim9execute.c b/src/vim9execute.c
index 89e4f05..54f95bf 100644
--- a/src/vim9execute.c
+++ b/src/vim9execute.c
@@ -920,7 +920,9 @@
 			break;
 		    default:
 			tv->v_type = VAR_STRING;
-			tv->vval.v_string = vim_strsave(iptr->isn_arg.string);
+			tv->vval.v_string = vim_strsave(
+				iptr->isn_arg.string == NULL
+					? (char_u *)"" : iptr->isn_arg.string);
 		}
 		break;