872ce47955
here. Some of this may have been poorly rebased, though I tried to be careful and preserve the spirit of the test.
39 lines
933 B
Rust
39 lines
933 B
Rust
// Copyright 2012 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.
|
|
|
|
pub trait MyEq : ::std::marker::MarkerTrait { }
|
|
|
|
pub trait MyNum : ::std::marker::MarkerTrait {
|
|
fn from_int(int) -> Self;
|
|
}
|
|
|
|
pub trait NumExt: MyEq + MyNum { }
|
|
|
|
struct S { v: int }
|
|
|
|
impl MyEq for S { }
|
|
|
|
impl MyNum for S {
|
|
fn from_int(i: int) -> S {
|
|
S {
|
|
v: i
|
|
}
|
|
}
|
|
}
|
|
|
|
impl NumExt for S { }
|
|
|
|
fn greater_than_one<T:NumExt>() -> T { MyNum::from_int(1) }
|
|
|
|
pub fn main() {
|
|
let v: S = greater_than_one();
|
|
assert_eq!(v.v, 1);
|
|
}
|