#![feature(generators, generator_trait)] | |
use std::marker::Unpin; | |
use std::ops::Generator; | |
pub fn foo() -> impl Generator<(), Yield = (), Return = ()> { | |
|| { | |
if false { | |
yield; | |
} | |
} | |
} | |
pub fn bar<T: 'static>(t: T) -> Box<Generator<(), Yield = T, Return = ()> + Unpin> { | |
Box::new(|| { | |
yield t; | |
}) | |
} |