src/test/run-pass/trait-default-method-xc.rs

   1 // Copyright 2014 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 // aux-build:trait_default_method_xc_aux.rs
  12
  13 extern crate "trait_default_method_xc_aux" as aux;
  14 use aux::{A, TestEquality, Something};
  15 use aux::B;
  16
  17 fn f<T: aux::A>(i: T) {
  18     assert_eq!(i.g(), 10);
  19 }
  20
  21 fn welp<T>(i: int, _x: &T) -> int {
  22     i.g()
  23 }
  24
  25 mod stuff {
  26     pub struct thing { pub x: int }
  27 }
  28
  29 impl A for stuff::thing {
  30     fn f(&self) -> int { 10 }
  31 }
  32
  33 fn g<T, U, V: B<T>>(i: V, j: T, k: U) -> (T, U) {
  34     i.thing(j, k)
  35 }
  36
  37 fn eq<T: TestEquality>(lhs: &T, rhs: &T) -> bool {
  38     lhs.test_eq(rhs)
  39 }
  40 fn neq<T: TestEquality>(lhs: &T, rhs: &T) -> bool {
  41     lhs.test_neq(rhs)
  42 }
  43
  44
  45 impl TestEquality for stuff::thing {
  46     fn test_eq(&self, rhs: &stuff::thing) -> bool {
  47         //self.x.test_eq(&rhs.x)
  48         eq(&self.x, &rhs.x)
  49     }
  50 }
  51
  52
  53 pub fn main() {
  54     // Some tests of random things
  55     f(0i);
  56
  57     assert_eq!(A::lurr(&0i, &1i), 21);
  58
  59     let a = stuff::thing { x: 0 };
  60     let b = stuff::thing { x: 1 };
  61     let c = Something { x: 1 };
  62
  63     assert_eq!(0i.g(), 10);
  64     assert_eq!(a.g(), 10);
  65     assert_eq!(a.h(), 11);
  66     assert_eq!(c.h(), 11);
  67
  68     assert_eq!(0i.thing(3.14f64, 1i), (3.14f64, 1i));
  69     assert_eq!(B::staticthing(&0i, 3.14f64, 1i), (3.14f64, 1i));
  70     assert_eq!(B::<f64>::staticthing::<int>(&0i, 3.14, 1), (3.14, 1));
  71
  72     assert_eq!(g(0i, 3.14f64, 1i), (3.14f64, 1i));
  73     assert_eq!(g(false, 3.14f64, 1i), (3.14, 1));
  74
  75
  76     // Trying out a real one
  77     assert!(12i.test_neq(&10i));
  78     assert!(!10i.test_neq(&10i));
  79     assert!(a.test_neq(&b));
  80     assert!(!a.test_neq(&a));
  81
  82     assert!(neq(&12i, &10i));
  83     assert!(!neq(&10i, &10i));
  84     assert!(neq(&a, &b));
  85     assert!(!neq(&a, &a));
  86 }