| // Copyright 2016 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. |
| |
| mod private { |
| pub trait Future { |
| fn wait(&self) where Self: Sized; |
| } |
| |
| impl Future for Box<Future> { |
| fn wait(&self) { } |
| } |
| } |
| |
| //use private::Future; |
| |
| fn bar(arg: Box<private::Future>) { |
| arg.wait(); |
| //~^ ERROR the `wait` method cannot be invoked on a trait object |
| } |
| |
| fn main() { |
| |
| } |
