rust/src/test/run-pass/uniq-cc-generic.rs
Alex Crichton ade807c6dc rustc: Obsolete the @ syntax entirely
This removes all remnants of `@` pointers from rustc. Additionally, this removes
the `GC` structure from the prelude as it seems odd exporting an experimental
type in the prelude by default.

Closes #14193
[breaking-change]
2014-06-14 10:45:37 -07:00

46 lines
1.1 KiB
Rust

// Copyright 2012-2013 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.
// ignore-pretty FIXME(#14193)
#![feature(managed_boxes)]
use std::cell::RefCell;
use std::gc::{Gc, GC};
enum maybe_pointy {
none,
p(Gc<RefCell<Pointy>>),
}
struct Pointy {
a : maybe_pointy,
d : proc():Send -> uint,
}
fn make_uniq_closure<A:Send>(a: A) -> proc():Send -> uint {
proc() { &a as *A as uint }
}
fn empty_pointy() -> Gc<RefCell<Pointy>> {
return box(GC) RefCell::new(Pointy {
a : none,
d : make_uniq_closure("hi".to_string())
})
}
pub fn main() {
let v = empty_pointy();
{
let mut vb = v.borrow_mut();
vb.a = p(v);
}
}