1 files changed, 26 insertions, 0 deletions
diff --git a/src/test/ui/compile-fail-migration/variance-use-contravariant-struct-1.rs b/src/test/ui/compile-fail-migration/variance-use-contravariant-struct-1.rs
new file mode 100644
index 00000000000..d2fd2978750
--- /dev/null
+++ b/src/test/ui/compile-fail-migration/variance-use-contravariant-struct-1.rs
@@ -0,0 +1,26 @@
+// Copyright 2015 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 various uses of structs with distint variances to make sure
+// they permit lifetimes to be approximated as expected.
+
+#![feature(rustc_attrs)]
+
+struct SomeStruct<T>(fn(T));
+
+fn foo<'min,'max>(v: SomeStruct<&'max ()>)
+                  -> SomeStruct<&'min ()>
+    where 'max : 'min
+{
+    v //~ ERROR mismatched types
+}
+
+#[rustc_error]
+fn main() { }