commit 94c785d235dccacf6cdf38c5903115b61ca8a981
author Bram Moolenaar <Bram@vim.org> Thu Dec 16 19:45:47 2021 +0000
committer Bram Moolenaar <Bram@vim.org> Thu Dec 16 19:45:47 2021 +0000
tree 3204a2a0811c246c194a2f47b90c6023db790e3e
parent 8103527da7f12ff21c2566222748518ee093432c

patch 8.2.3829: no error when setting a func option to script-local function

Problem:    No error when setting a func option to a script-local function.
Solution:   Give an error if the name starts with "s:". (closes #9358)

src/option.c

diff --git a/src/option.c b/src/option.c
index 739b29a..de6e562 100644
--- a/src/option.c
+++ b/src/option.c
@@ -7199,6 +7199,9 @@
 	return OK;
     }
 
+    if (STRNCMP(optval, "s:", 2) == 0 && !SCRIPT_ID_VALID(current_sctx.sc_sid))
+	return FAIL;
+
     if (*optval == '{' || (in_vim9script() && *optval == '(')
 	    || (STRNCMP(optval, "function(", 9) == 0)
 	    || (STRNCMP(optval, "funcref(", 8) == 0))