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//@ run-fail
//@ error-pattern:drop 1
//@ ignore-emscripten no processes
/// Structure which will not allow to be dropped twice.
struct Droppable<'a>(&'a mut bool, u32);
impl<'a> Drop for Droppable<'a> {
fn drop(&mut self) {
if *self.0 {
eprintln!("{} dropped twice", self.1);
::std::process::exit(1);
}
eprintln!("drop {}", self.1);
*self.0 = true;
}
}
fn mir<'a>(d: Droppable<'a>) {
loop {
let x = d;
break;
}
}
fn main() {
let mut xv = false;
mir(Droppable(&mut xv, 1));
panic!();
}
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