Device macro to generate stateful and publish variants of device specific poll inputs.

macros/node-poll-variants/tests/generate.rs

@@ -1,11 +1,29 @@
-use node_poll_variants::{PollVariants};
+#![feature(async_fn_in_trait, impl_trait_projections)]
+
+use node_poll_variants::PollVariants;
+use physical_node::transducer::input::Poll;
 
 #[derive(PollVariants)]
-struct ExamplePoll<'a, FirstT: Copy, SecondT> {
+#[value_type = "SecondT"]
+struct ExamplePoll<'a, FirstT, SecondT>
+where
+    SecondT: Copy,
+{
     a: &'a i32,
     b: i32,
     first: FirstT,
     second: SecondT,
 }
 
+impl<'a, FirstT, SecondT> Poll for ExamplePoll<'a, FirstT, SecondT>
+where
+    SecondT: Copy,
+{
+    type Value = SecondT;
+
+    async fn poll(&self) -> Self::Value {
+        self.second
+    }
+}
+
 fn main() {}