了解 Fuchsia 的 Rust 开发

GameLisp

Shredder 项目

derive_aktor

pub struct KeyValueStore<U>    where U: Hash + Eq + Send + 'static{    inner_store: HashMap<U, String>,    self_actor: Option<KeyValueStoreActor<U>>,}
impl<U: Hash + Eq + Send + 'static> KeyValueStore<U> {    pub fn new() -> Self {        Self {            inner_store: HashMap::new(),            self_actor: None,        }    }}
// All methods in this block form our Actor's API#[derive_actor]impl<U: Hash + Eq + Send + 'static> KeyValueStore<U> {    pub fn query(&self, key: U, f: Box<dyn Fn(Option<String>) + Send + 'static>) {        println!("query");        f(self.inner_store.get(&key).map(String::from))    }
    pub fn set(&mut self, key: U, value: String) {        println!("set");        self.inner_store.insert(key, value);    }}

#[tokio::main]async fn main() {
    let (kv_store, handle) = KeyValueStoreActor::new(KeyValueStore::new()).await;        // We can use an async API that's typed and nominal    kv_store.query("foo", Box::new(|value| println!("before {:?}", value))).await;    kv_store.set("foo", "bar".to_owned()).await;    kv_store.query("foo", Box::new(|value| println!("after {:?}", value))).await;
    // We must drop any references to kv_store before we await the handle, or it will leak!
    drop(kv_store);    handle.await;}