rust/src/test/run-pass/regions-copy-closure.rs
Niko Matsakis 9e3d0b002a librustc: Remove the fallback to int from typechecking.
This breaks a fair amount of code. The typical patterns are:

* `for _ in range(0, 10)`: change to `for _ in range(0u, 10)`;

* `println!("{}", 3)`: change to `println!("{}", 3i)`;

* `[1, 2, 3].len()`: change to `[1i, 2, 3].len()`.

RFC #30. Closes #6023.

[breaking-change]
2014-06-24 17:18:48 -07:00

29 lines
762 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.
struct closure_box<'a> {
cl: ||: 'a,
}
fn box_it<'r>(x: ||: 'r) -> closure_box<'r> {
closure_box {cl: x}
}
pub fn main() {
let mut i = 3i;
assert_eq!(i, 3);
{
let cl = || i += 1;
let cl_box = box_it(cl);
(cl_box.cl)();
}
assert_eq!(i, 4);
}