1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 // Regression test for #47511: anonymous lifetimes can appear
12 // unconstrained in a return type, but only if they appear just once
13 // in the input, as the input to a projection.
16 //~^ ERROR return type references an anonymous lifetime
20 fn g<'a>(_: X<'a>) -> X<'a> {
21 //~^ ERROR return type references lifetime `'a`, which is not constrained
25 type X<'a> = <&'a () as Trait>::Value;
31 impl<'a> Trait for &'a () {