1 files changed, 22 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-19982.rs b/src/test/ui/issues/issue-19982.rs
new file mode 100644
index 000000000..12419c109
--- /dev/null
+++ b/src/test/ui/issues/issue-19982.rs
@@ -0,0 +1,22 @@
+// check-pass
+
+#![feature(fn_traits, unboxed_closures)]
+
+#[allow(dead_code)]
+struct Foo;
+
+impl Fn<(&(),)> for Foo {
+    extern "rust-call" fn call(&self, (_,): (&(),)) {}
+}
+
+impl FnMut<(&(),)> for Foo {
+    extern "rust-call" fn call_mut(&mut self, (_,): (&(),)) {}
+}
+
+impl FnOnce<(&(),)> for Foo {
+    type Output = ();
+
+    extern "rust-call" fn call_once(self, (_,): (&(),)) {}
+}
+
+fn main() {}