patch 8.2.3058: Vim9: cannot use ternary operator in parenthesis
Problem: Vim9: cannot use ternary operator in parenthesis.
Solution: Do not use "==" for a default argument value. (closes #8462)
diff --git a/src/userfunc.c b/src/userfunc.c
index cedd37b..3321f08 100644
--- a/src/userfunc.c
+++ b/src/userfunc.c
@@ -266,13 +266,18 @@
}
else
{
+ char_u *np;
+
arg = p;
p = one_function_arg(p, newargs, argtypes, types_optional,
evalarg, FALSE, skip);
if (p == arg)
break;
- if (*skipwhite(p) == '=' && default_args != NULL)
+ // Recognize " = expr" but not " == expr". A lambda can have
+ // "(a = expr" but "(a == expr" is not a lambda.
+ np = skipwhite(p);
+ if (*np == '=' && np[1] != '=' && default_args != NULL)
{
typval_T rettv;