---

yaml
---
r: 111375
b: refs/heads/master
c: 364d82e
h: refs/heads/master
i:
  111373: 711b4cd
  111371: f3005c2
  111367: 88132d6
  111359: 7b37193
v: v3

Author: pnkfelix

[refs]

@@ -1,5 +1,5 @@
 ---
-refs/heads/master: 78baf0e9689c73d549cf194ecd97f704702ec9f8
+refs/heads/master: 364d82e7f3edb03031db9221be107d146615d610
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: b5dd3f05fe95168b5569d0f519636149479eb6ac
 refs/heads/try: 38201d7c6bf0c32b0e5bdc8ecd63976ebc1b3a4c

trunk/src/test/run-pass/regions-no-variance-from-fn-generics.rs

@@ -0,0 +1,45 @@
+// 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.
+
+// Issue #12856: a lifetime formal binding introduced by a generic fn
+// should not upset the variance inference for actual occurrences of
+// that lifetime in type expressions.
+
+trait HasLife<'a> { }
+
+trait UseLife01 {
+    fn refs<'a, H: HasLife<'a>>(&'a self) -> H;
+}
+
+trait UseLife02 {
+    fn refs<'a, T, H: HasType<&'a T>>(&'a self) -> H;
+}
+
+
+trait HasType<T> { }
+
+trait UseLife03<T> {
+    fn refs<'a, H: HasType<&'a T>>(&'a self) -> H;
+}
+
+
+// (The functions below were not actually a problem observed during
+// fixing of #12856; they just seem like natural tests to put in to
+// cover a couple more points in the testing space)
+
+pub fn top_refs_1<'a, H: HasLife<'a>>(_s: &'a ()) -> H {
+    unimplemented!()
+}
+
+pub fn top_refs_2<'a, T, H: HasType<&'a T>>(_s: &'a ()) -> H {
+    unimplemented!()
+}
+
+pub fn main() {}