patch 8.2.4774: crash when using a number for lambda name
Problem: Crash when using a number for lambda name.
Solution: Check the type of the lambda reference.
diff --git a/src/eval.c b/src/eval.c
index cad6887..61b09fb 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -4102,19 +4102,23 @@
++*arg;
ret = eval1(arg, rettv, evalarg);
*arg = skipwhite_and_linebreak(*arg, evalarg);
- if (**arg == ')')
- {
- ++*arg;
- }
- else
+ if (**arg != ')')
{
emsg(_(e_missing_closing_paren));
- ret = FAIL;
+ return FAIL;
}
+ if (rettv->v_type != VAR_STRING && rettv->v_type != VAR_FUNC
+ && rettv->v_type != VAR_PARTIAL)
+ {
+ emsg(_(e_string_or_function_required_for_arrow_parens_expr));
+ return FAIL;
+ }
+ ++*arg;
}
if (ret != OK)
return FAIL;
- else if (**arg != '(')
+
+ if (**arg != '(')
{
if (verbose)
{