File: coroutine-region-requirements.rs

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#![feature(coroutines, coroutine_trait)]
use std::ops::{Coroutine, CoroutineState};
use std::pin::Pin;

fn dangle(x: &mut i32) -> &'static mut i32 {
    let mut g = || {
        yield;
        x
    };
    loop {
        match Pin::new(&mut g).resume(()) {
            CoroutineState::Complete(c) => return c,
            //~^ ERROR lifetime may not live long enough
            CoroutineState::Yielded(_) => (),
        }
    }
}

fn main() {}