47 lines
1.0 KiB
Rust
47 lines
1.0 KiB
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution and at
|
|
// http://rust-lang.org/COPYRIGHT.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
use std::fmt::Debug;
|
|
use std::default::Default;
|
|
|
|
trait MyTrait {
|
|
fn get(&self) -> Self;
|
|
}
|
|
|
|
impl<T> MyTrait for T
|
|
where T : Default
|
|
{
|
|
fn get(&self) -> T {
|
|
Default::default()
|
|
}
|
|
}
|
|
|
|
#[derive(Clone, Copy, Debug, PartialEq)]
|
|
struct MyType {
|
|
dummy: usize
|
|
}
|
|
|
|
impl MyTrait for MyType {
|
|
fn get(&self) -> MyType { (*self).clone() }
|
|
}
|
|
|
|
fn test_eq<M>(m: M, n: M)
|
|
where M : MyTrait + Debug + PartialEq
|
|
{
|
|
assert_eq!(m.get(), n);
|
|
}
|
|
|
|
pub fn main() {
|
|
test_eq(0_usize, 0_usize);
|
|
|
|
let value = MyType { dummy: 256 + 22 };
|
|
test_eq(value, value);
|
|
}
|