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/testdir/test_vim9_func.vim b/src/testdir/test_vim9_func.vim
index ee97e56..563b7ba 100644
--- a/src/testdir/test_vim9_func.vim
+++ b/src/testdir/test_vim9_func.vim
@@ -924,6 +924,13 @@
CheckDefAndScriptFailure(lines, 'E1172:')
lines =<< trim END
+ var a = 0
+ var b = (a == 0 ? 1 : 2)
+ assert_equal(1, b)
+ END
+ CheckDefAndScriptSuccess(lines)
+
+ lines =<< trim END
def ShadowLocal()
var one = 1
var l = [1, 2, 3]
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;
diff --git a/src/version.c b/src/version.c
index 6069a39..59f84d4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
+ 3058,
+/**/
3057,
/**/
3056,