From 7ee3eaa79c07636588e3a5272f2486c284c57961 Mon Sep 17 00:00:00 2001
From: Daan Sprenkels <dsprenkels@gmail.com>
Date: Thu, 16 Jun 2016 09:46:25 +0200
Subject: [PATCH] Add regression tests for #23122

---
 src/test/compile-fail/issue-23122-1.rs | 22 ++++++++++++++++++++++
 src/test/compile-fail/issue-23122-2.rs | 22 ++++++++++++++++++++++
 2 files changed, 44 insertions(+)
 create mode 100644 src/test/compile-fail/issue-23122-1.rs
 create mode 100644 src/test/compile-fail/issue-23122-2.rs

diff --git a/src/test/compile-fail/issue-23122-1.rs b/src/test/compile-fail/issue-23122-1.rs
new file mode 100644
index 00000000000..36d8450848d
--- /dev/null
+++ b/src/test/compile-fail/issue-23122-1.rs
@@ -0,0 +1,22 @@
+// Copyright 2016 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.
+
+trait Next {
+    type Next: Next;
+}
+
+struct GetNext<T: Next> { t: T }
+
+impl<T: Next> Next for GetNext<T> {
+    //~^ ERROR overflow evaluating the requirement
+    type Next = <GetNext<T> as Next>::Next;
+}
+
+fn main() {}
diff --git a/src/test/compile-fail/issue-23122-2.rs b/src/test/compile-fail/issue-23122-2.rs
new file mode 100644
index 00000000000..faaf78f894b
--- /dev/null
+++ b/src/test/compile-fail/issue-23122-2.rs
@@ -0,0 +1,22 @@
+// Copyright 2016 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.
+
+trait Next {
+    type Next: Next;
+}
+
+struct GetNext<T: Next> { t: T }
+
+impl<T: Next> Next for GetNext<T> {
+    //~^ ERROR overflow evaluating the requirement
+    type Next = <GetNext<T::Next> as Next>::Next;
+}
+
+fn main() {}