let lub_ty = self.commit_if_ok(|_| {
self.at(cause, self.param_env)
.lub(prev_ty, new_ty)
- .map(|ok| self.register_infer_ok_obligations(ok))
- });
+ }).map(|ok| self.register_infer_ok_obligations(ok));
if lub_ty.is_ok() {
// We have a LUB of prev_ty and new_ty, just return it.
--- /dev/null
+// Copyright 2017 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.
+
+struct A<T: ?Sized> { ptr: T }
+
+fn foo<T>(x: &A<[T]>) {}
+
+fn main() {
+ let a = foo;
+ let b = A { ptr: [a, a, a] };
+ a(&A { ptr: [()] });
+}