| // 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. |
| |
| #![feature(try_from)] |
| |
| use std::marker::PhantomData; |
| use std::convert::{TryFrom, AsRef}; |
| |
| struct Q; |
| impl AsRef<Q> for Box<Q> { //~ ERROR conflicting implementations |
| fn as_ref(&self) -> &Q { |
| &**self |
| } |
| } |
| |
| struct S; |
| impl From<S> for S { //~ ERROR conflicting implementations |
| fn from(s: S) -> S { |
| s |
| } |
| } |
| |
| struct X; |
| impl TryFrom<X> for X { //~ ERROR conflicting implementations |
| type Error = (); |
| fn try_from(u: X) -> Result<X, ()> { |
| Ok(u) |
| } |
| } |
| |
| fn main() {} |
