Improve tuple structs suggested by clippy

benches/pub_sub.rs

@@ -4,7 +4,7 @@ use std::time::{Duration, Instant};
 use tonari_actor::{Actor, Context, Event, Recipient, System};
 
 #[derive(Debug, Clone)]
-struct StringEvent(());
+struct StringEvent;
 
 impl Event for StringEvent {}
 
@@ -45,7 +45,7 @@ impl Actor for PublisherActor {
             PublisherMessage::PublishEvents => {
                 let start = Instant::now();
                 for _i in 0..self.iterations {
-                    context.system_handle.publish(StringEvent(()))?;
+                    context.system_handle.publish(StringEvent)?;
                 }
                 let elapsed = start.elapsed();
 

src/lib.rs

@@ -1100,7 +1100,7 @@ mod tests {
     #[test]
     fn send_constraints() {
         #[derive(Default)]
-        struct LocalActor(());
+        struct LocalActor;
         impl Actor for LocalActor {
             type Context = Context<Self::Message>;
             type Error = ();
@@ -1123,10 +1123,10 @@ mod tests {
         let mut system = System::new("main");
 
         // Allowable, as the struct will be created on the new thread.
-        let _ = system.prepare_fn(LocalActor::default).with_default_capacity().spawn().unwrap();
+        let _ = system.prepare_fn(|| LocalActor).with_default_capacity().spawn().unwrap();
 
         // Allowable, as the struct will be run on the current thread.
-        system.prepare(LocalActor::default()).with_default_capacity().run_and_block().unwrap();
+        system.prepare(LocalActor).with_default_capacity().run_and_block().unwrap();
 
         system.shutdown().unwrap();
     }