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