#![feature(coroutines, coroutine_trait, never_type)] | |
use std::ops::Coroutine; | |
fn mk_gen() -> impl Coroutine<Return=!, Yield=()> { | |
#[coroutine] || { loop { yield; } } | |
} | |
fn main() { | |
let gens: [impl Coroutine<Return=!, Yield=()>;2] = [ mk_gen(), mk_gen() ]; | |
//~^ `impl Trait` is not allowed in the type of variable bindings | |
} |