1 files changed, 31 insertions, 0 deletions
diff --git a/tests/ui/parser/fn-body-optional-syntactic-pass.rs b/tests/ui/parser/fn-body-optional-syntactic-pass.rs
new file mode 100644
index 00000000000..f9dbebf0bea
--- /dev/null
+++ b/tests/ui/parser/fn-body-optional-syntactic-pass.rs
@@ -0,0 +1,31 @@
+// Ensures that all `fn` forms having or lacking a body are syntactically valid.
+
+// check-pass
+
+fn main() {}
+
+#[cfg(FALSE)]
+fn syntax() {
+    fn f();
+    fn f() {}
+
+    trait X {
+        fn f();
+        fn f() {}
+    }
+
+    impl X for Y {
+        fn f();
+        fn f() {}
+    }
+
+    impl Y {
+        fn f();
+        fn f() {}
+    }
+
+    extern "C" {
+        fn f();
+        fn f();
+    }
+}