rust/src/test/run-pass/autoderef-method-priority.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

31 lines
776 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.
#![feature(managed_boxes)]
use std::gc::{GC, Gc};
trait double {
fn double(self) -> uint;
}
impl double for uint {
fn double(self) -> uint { self }
}
impl double for Gc<uint> {
fn double(self) -> uint { *self * 2u }
}
pub fn main() {
let x = box(GC) 3u;
assert_eq!(x.double(), 6u);
}