| // 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. |
| |
| // Corrected regression test for #20831. The original did not compile. |
| // When fixed, it revealed another problem concerning projections that |
| // appear in associated type bindings in object types, which were not |
| // being properly flagged. |
| |
| // pretty-expanded FIXME #23616 |
| |
| use std::ops::{Shl, Shr}; |
| use std::cell::RefCell; |
| |
| pub trait Subscriber { |
| type Input; |
| |
| fn dummy(&self) { } |
| } |
| |
| pub trait Publisher<'a> { |
| type Output; |
| fn subscribe(&mut self, Box<Subscriber<Input=Self::Output> + 'a>); |
| } |
| |
| pub trait Processor<'a> : Subscriber + Publisher<'a> { } |
| |
| impl<'a, P> Processor<'a> for P where P : Subscriber + Publisher<'a> { } |
| |
| struct MyStruct<'a> { |
| sub: Box<Subscriber<Input=u64> + 'a> |
| } |
| |
| impl<'a> Publisher<'a> for MyStruct<'a> { |
| type Output = u64; |
| fn subscribe(&mut self, t : Box<Subscriber<Input=u64> + 'a>) { |
| self.sub = t; |
| } |
| } |
| |
| fn main() {} |