From e71078af4919346b1dd3b0b66eeb8b1c18fb6a7e Mon Sep 17 00:00:00 2001
From: orzogc <orzogc@163.com>
Date: Sun, 26 Mar 2023 09:38:16 +0800
Subject: [PATCH] `Or<T>` should be a new type of `PhantomData<T>` (#8212)

# Objective

`Or<T>` should be a new type of `PhantomData<T>` instead of `T`.

## Solution

Make `Or<T>` a new type of `PhantomData<T>`.

## Migration Guide

`Or<T>` is just used as a type annotation and shouldn't be constructed.
---
 crates/bevy_ecs/src/query/filter.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/bevy_ecs/src/query/filter.rs b/crates/bevy_ecs/src/query/filter.rs
index 41f2a7941b..0072f16666 100644
--- a/crates/bevy_ecs/src/query/filter.rs
+++ b/crates/bevy_ecs/src/query/filter.rs
@@ -237,7 +237,7 @@ unsafe impl<T: Component> ReadOnlyWorldQuery for Without<T> {}
 /// }
 /// # bevy_ecs::system::assert_is_system(print_cool_entity_system);
 /// ```
-pub struct Or<T>(pub T);
+pub struct Or<T>(PhantomData<T>);
 
 #[doc(hidden)]
 pub struct OrFetch<'w, T: WorldQuery> {