From 7def5ee520d855daf5b09a72a4fcf7a15a4c06e6 Mon Sep 17 00:00:00 2001
From: hodasemi <michaelh.95@t-online.de>
Date: Tue, 15 Apr 2025 09:54:38 +0200
Subject: [PATCH] Add dedup check for events

---
 update_macros/src/update.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/update_macros/src/update.rs b/update_macros/src/update.rs
index 079c627..6cc65ea 100644
--- a/update_macros/src/update.rs
+++ b/update_macros/src/update.rs
@@ -181,6 +181,8 @@ fn events_and_systems(update: &Update) -> TokenStream2 {
             P: std::any::Any + Send + Sync,
         {
             fn add_reader(&mut self, func: Func) {
+                #( #verify_dedup )*
+
                 match self.events.get_mut(&TypeId::of::<P>()) {
                     Some((_, listener)) => listener.push(std::sync::Arc::new(move |world, payload| {
                         let typed_payload: &P = payload.downcast_ref().unwrap();