Merge pull request #13 from vincenzopalazzo/macros/example

add new example to reprodue a rust issue

Cargo.toml

@@ -4,5 +4,6 @@ members = [
         "io",
         "lib",
         "rt",
-        "examples/rio_triage_await"
+        "examples/rio_triage_await",
+        "examples/lifetime_issue",
 ]

examples/lifetime_issue/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "lifetime_issue"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+rio_rt = { path = "../../rt"  }

examples/lifetime_issue/src/future.rs

@@ -0,0 +1,39 @@
+use std::future::Future;
+use std::pin::Pin;
+use std::task::Context;
+use std::task::Poll;
+
+use std::io;
+
+pub struct AdaptorFuture<F> {
+    pub inner: F,
+}
+
+impl<F, T> Future for AdaptorFuture<F>
+where
+    F: Future<Output = T>,
+{
+    type Output = Result<T, io::Error>;
+
+    fn poll(self: Pin<&mut Self>, _: &mut Context<'_>) -> Poll<Self::Output> {
+        panic!()
+    }
+}
+
+pub struct HyperFuture<B>
+where
+    B: ToString,
+{
+    inner: B,
+}
+
+impl<B> Future for HyperFuture<B>
+where
+    B: ToString,
+{
+    type Output = Result<(), io::Error>;
+
+    fn poll(self: Pin<&mut Self>, _: &mut Context<'_>) -> Poll<Self::Output> {
+        panic!()
+    }
+}

examples/lifetime_issue/src/main.rs

@@ -0,0 +1,14 @@
+use rio_rt::runitime as rio;
+
+mod future;
+mod services;
+
+use crate::future::AdaptorFuture;
+use crate::services::{HyperService, Service};
+
+fn main() {
+    let service = HyperService::new("".to_string());
+    rio::block_on(async move {
+        service.call("".to_string());
+    })
+}

examples/lifetime_issue/src/services.rs

@@ -0,0 +1,37 @@
+use crate::future::HyperFuture;
+use crate::AdaptorFuture;
+use std::future::Future;
+
+use std::fmt::Display;
+use std::io;
+
+pub trait Service<R> {
+    type Response;
+
+    type Future: Future<Output = Self::Response>;
+
+    fn call(&self, req: R) -> Self::Future;
+}
+
+pub struct HyperService<S> {
+    request_service: S,
+}
+
+impl<S> HyperService<S> {
+    pub fn new(request_service: S) -> Self {
+        HyperService { request_service }
+    }
+}
+
+impl<S, R> Service<R> for HyperService<S>
+where
+    S: ToString,
+{
+    type Response = Result<(), io::Error>;
+
+    type Future = HyperFuture<String>;
+
+    fn call(&self, _: R) -> Self::Future {
+        panic!()
+    }
+}