| // Copyright 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. |
| |
| // just to make sure that `return` is only returning from the closure, |
| // not the surrounding function. |
| |
| static mut calls: usize = 0; |
| |
| fn surrounding() { |
| let return_works = |n: isize| { |
| unsafe { calls += 1 } |
| |
| if n >= 0 { return; } |
| panic!() |
| }; |
| |
| return_works(10); |
| return_works(20); |
| |
| let return_works_proc = |n: isize| { |
| unsafe { calls += 1 } |
| |
| if n >= 0 { return; } |
| panic!() |
| }; |
| |
| return_works_proc(10); |
| } |
| |
| pub fn main() { |
| surrounding(); |
| |
| assert_eq!(unsafe {calls}, 3); |
| } |