src/test/ui/e0119/conflict-with-std.rs

   1 // Copyright 2017 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.
   4 //
   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.
  10
  11 #![feature(try_from)]
  12
  13 use std::marker::PhantomData;
  14 use std::convert::{TryFrom, AsRef};
  15
  16 struct Q;
  17 impl AsRef<Q> for Box<Q> {
  18     fn as_ref(&self) -> &Q {
  19         &**self
  20     }
  21 }
  22
  23 struct S;
  24 impl From<S> for S {
  25     fn from(s: S) -> S {
  26         s
  27     }
  28 }
  29
  30 struct X;
  31 impl TryFrom<X> for X {
  32     type Error = ();
  33     fn try_from(u: X) -> Result<X, ()> {
  34         Ok(u)
  35     }
  36 }
  37
  38 fn main() {}