src/test/run-pass/autoref-autoderef/autoderef-method-priority.rs

   1 // Copyright 2012 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 // run-pass
  12 #![allow(non_camel_case_types)]
  13 #![feature(box_syntax)]
  14
  15 trait double {
  16     fn double(self) -> usize;
  17 }
  18
  19 impl double for usize {
  20     fn double(self) -> usize { self }
  21 }
  22
  23 impl double for Box<usize> {
  24     fn double(self) -> usize { *self * 2 }
  25 }
  26
  27 pub fn main() {
  28     let x: Box<_> = box 3;
  29     assert_eq!(x.double(), 6);
  30 }