| #![feature(coroutines, coroutine_trait)] |
| #![allow(unused_assignments)] |
| |
| use std::ops::{Coroutine, CoroutineState}; |
| use std::pin::Pin; |
| |
| fn main() { |
| let mut coroutine = || { |
| yield 1; |
| return "foo"; |
| }; |
| |
| match Pin::new(&mut coroutine).resume(()) { |
| CoroutineState::Yielded(1) => {} |
| _ => panic!("unexpected value from resume"), |
| } |
| match Pin::new(&mut coroutine).resume(()) { |
| CoroutineState::Complete("foo") => {} |
| _ => panic!("unexpected value from resume"), |
| } |
| |
| let mut coroutine = || { |
| yield 1; |
| yield 2; |
| yield 3; |
| return "foo"; |
| }; |
| |
| match Pin::new(&mut coroutine).resume(()) { |
| CoroutineState::Yielded(1) => {} |
| _ => panic!("unexpected value from resume"), |
| } |
| match Pin::new(&mut coroutine).resume(()) { |
| CoroutineState::Yielded(2) => {} |
| _ => panic!("unexpected value from resume"), |
| } |
| } |