1 files changed, 16 insertions, 0 deletions
diff --git a/src/test/compile-fail/issue-17904-2.rs b/src/test/compile-fail/issue-17904-2.rs
new file mode 100644
index 00000000000..a33ec23a16a
--- /dev/null
+++ b/src/test/compile-fail/issue-17904-2.rs
@@ -0,0 +1,16 @@
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// Test that we can parse a unit struct with a where clause, even if
+// it leads to a error later on since `T` is unused.
+
+struct Foo<T> where T: Copy; //~ ERROR parameter `T` is never used
+
+fn main() {}