| // run-pass |
| |
| #![feature(coroutines, coroutine_trait)] |
| |
| use std::ops::{Coroutine, CoroutineState}; |
| |
| fn mkstr(my_name: String, my_mood: String) -> String { |
| format!("{} is {}", my_name.trim(), my_mood.trim()) |
| } |
| |
| fn my_scenario() -> impl Coroutine<String, Yield = &'static str, Return = String> { |
| |_arg: String| { |
| let my_name = yield "What is your name?"; |
| let my_mood = yield "How are you feeling?"; |
| mkstr(my_name, my_mood) |
| } |
| } |
| |
| fn main() { |
| let mut my_session = Box::pin(my_scenario()); |
| |
| assert_eq!( |
| my_session.as_mut().resume("_arg".to_string()), |
| CoroutineState::Yielded("What is your name?") |
| ); |
| assert_eq!( |
| my_session.as_mut().resume("Your Name".to_string()), |
| CoroutineState::Yielded("How are you feeling?") |
| ); |
| assert_eq!( |
| my_session.as_mut().resume("Sensory Organs".to_string()), |
| CoroutineState::Complete("Your Name is Sensory Organs".to_string()) |
| ); |
| } |