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#![feature(coroutine_trait)]
#![feature(coroutines, stmt_expr_attributes)]
#![allow(unused)]
use std::ops::Coroutine;
use std::ops::CoroutineState;
use std::pin::pin;
fn mk_static(s: &str) -> &'static str {
let mut storage: Option<&'static str> = None;
let mut coroutine = pin!(
#[coroutine]
|_: &str| {
let x: &'static str = yield ();
//~^ ERROR lifetime may not live long enough
storage = Some(x);
}
);
coroutine.as_mut().resume(s);
coroutine.as_mut().resume(s);
storage.unwrap()
}
fn main() {
let s = mk_static(&String::from("hello, world"));
println!("{s}");
}
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