src/test/auxiliary/issue-20727.rs

   1 // Copyright 2015 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 // compile-flags: -Cmetadata=aux
  12
  13 pub trait Deref {
  14     type Target: ?Sized;
  15
  16     fn deref<'a>(&'a self) -> &'a Self::Target;
  17 }
  18
  19 pub trait Add<RHS = Self> {
  20     type Output;
  21
  22     fn add(self, rhs: RHS) -> Self::Output;
  23 }
  24
  25
  26 pub trait Bar {}
  27 pub trait Deref2 {
  28     type Target: Bar;
  29
  30     fn deref(&self) -> Self::Target;
  31 }
  32
  33 pub trait Index<Idx: ?Sized> {
  34     type Output: ?Sized;
  35     fn index(&self, index: Idx) -> &Self::Output;
  36 }
  37
  38 pub trait IndexMut<Idx: ?Sized>: Index<Idx> {
  39     fn index_mut(&mut self, index: Idx) -> &mut Self::Output;
  40 }