43 lines
863 B
Rust
43 lines
863 B
Rust
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#![feature(trait_alias)]
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pub mod view;
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pub mod port;
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pub mod channel;
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use async_std::task;
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use async_std::prelude::*;
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use async_std::stream;
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use std::sync::{Arc, RwLock};
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use cgmath::Vector2;
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use view::{View, Observer};
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use port::{ViewPortIn, ViewPortOut};
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#[async_std::main]
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async fn main() {
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let (view_in, mut view_out) = port::view_port::<usize, char>();
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let mut observer_stream = view_in.stream().map({
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let view = view_in.clone();
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move |idx| (idx, view.view(idx).unwrap())
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});
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let fut = task::spawn(async move {
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while let Some((idx, val)) = observer_stream.next().await {
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println!("view[{}] = {}", idx, val);
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}
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});
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view_out.set_view_fn(|idx| Some(if idx % 2 == 0 { 'λ' } else { 'y' }) );
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view_out.notify(1);
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view_out.notify(2);
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view_out.notify(5);
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fut.await;
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}
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