24 lines
702 B
Rust
24 lines
702 B
Rust
// 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.
|
|
|
|
#![feature(box_syntax)]
|
|
|
|
trait A<T> { }
|
|
struct B<'a, T:'a>(&'a (A<T>+'a));
|
|
|
|
trait X { }
|
|
impl<'a, T> X for B<'a, T> {}
|
|
|
|
fn i<'a, T, U>(v: Box<A<U>+'a>) -> Box<X+'static> {
|
|
box B(&*v) as Box<X> //~ ERROR cannot infer
|
|
}
|
|
|
|
fn main() {}
|