src/test/auxiliary/trait_inheritance_overloading_xc.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 use std::cmp::PartialEq;
  12 use std::ops::{Add, Sub, Mul};
  13
  14 pub trait MyNum : Add<Output=Self> + Sub<Output=Self> + Mul<Output=Self> + PartialEq + Clone {
  15 }
  16
  17 #[derive(Clone, Debug)]
  18 pub struct MyInt {
  19     pub val: int
  20 }
  21
  22 impl Add for MyInt {
  23     type Output = MyInt;
  24
  25     fn add(self, other: MyInt) -> MyInt { mi(self.val + other.val) }
  26 }
  27
  28 impl Sub for MyInt {
  29     type Output = MyInt;
  30
  31     fn sub(self, other: MyInt) -> MyInt { mi(self.val - other.val) }
  32 }
  33
  34 impl Mul for MyInt {
  35     type Output = MyInt;
  36
  37     fn mul(self, other: MyInt) -> MyInt { mi(self.val * other.val) }
  38 }
  39
  40 impl PartialEq for MyInt {
  41     fn eq(&self, other: &MyInt) -> bool { self.val == other.val }
  42
  43     fn ne(&self, other: &MyInt) -> bool { !self.eq(other) }
  44 }
  45
  46 impl MyNum for MyInt {}
  47
  48 fn mi(v: int) -> MyInt { MyInt { val: v } }