| // 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. |
| |
| #![feature(rustc_attrs)] |
| |
| 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, |
| } |
| |
| #[rustc_mir] |
| 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); |
| } |