39 lines
915 B
Rust
39 lines
915 B
Rust
// Copyright 2016 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::marker::PhantomData;
|
|
|
|
pub trait DataBind {
|
|
type Data;
|
|
}
|
|
|
|
impl<T> DataBind for Global<T> {
|
|
type Data = T;
|
|
}
|
|
|
|
pub struct Global<T>(PhantomData<T>);
|
|
|
|
pub struct Data {
|
|
pub offsets: <Global<[u32; 2]> as DataBind>::Data,
|
|
}
|
|
|
|
fn create_data() -> Data {
|
|
let mut d = Data { offsets: [1, 2] };
|
|
d.offsets[0] = 3;
|
|
d
|
|
}
|
|
|
|
|
|
fn main() {
|
|
let d = create_data();
|
|
assert_eq!(d.offsets[0], 3);
|
|
assert_eq!(d.offsets[1], 2);
|
|
}
|