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#![feature(type_alias_impl_trait, generator_trait, generators)]
use std::ops::Generator;
trait Runnable {
type Gen: Generator<Yield = (), Return = ()>;
fn run(&mut self) -> Self::Gen;
}
struct Implementor {}
impl Runnable for Implementor {
type Gen = impl Generator<Yield = (), Return = ()>;
fn run(&mut self) -> Self::Gen {
//~^ ERROR: type mismatch resolving
move || {
yield 1;
}
}
}
fn main() {}
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