| #![feature(coroutines, coroutine_trait, never_type)] | |
| use std::ops::Coroutine; | |
| fn mk_gen() -> impl Coroutine<Return=!, Yield=()> { | |
| || { loop { yield; } } | |
| } | |
| fn main() { | |
| let gens: [impl Coroutine<Return=!, Yield=()>;2] = [ mk_gen(), mk_gen() ]; | |
| //~^ `impl Trait` only allowed in function and inherent method argument and return types | |
| } |