rust/src/test/run-pass/unit-like-struct-drop-run.rs
2016-05-09 08:40:57 -04:00

36 lines
924 B
Rust

// 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.
// ignore-emscripten no threads support
// Make sure the destructor is run for unit-like structs.
#![feature(alloc)]
use std::thread;
struct Foo;
impl Drop for Foo {
fn drop(&mut self) {
panic!("This panic should happen.");
}
}
pub fn main() {
let x = thread::spawn(move|| {
let _b = Foo;
}).join();
let s = x.unwrap_err().downcast::<&'static str>().unwrap();
assert_eq!(&**s, "This panic should happen.");
}