flip resource scope order (#1793)

I think [collection, thing_removed_from_collection] is a more natural order than [thing_removed_from_collection, collection]. Just a small tweak that I think we should include in 0.5.

Author: cart

crates/bevy_ecs/src/lib.rs

@@ -1110,7 +1110,7 @@ mod tests {
     fn resource_scope() {
         let mut world = World::default();
         world.insert_resource::<i32>(0);
-        world.resource_scope(|mut value: Mut<i32>, world: &mut World| {
+        world.resource_scope(|world: &mut World, mut value: Mut<i32>| {
             *value += 1;
             assert!(!world.contains_resource::<i32>());
         });

crates/bevy_ecs/src/world/mod.rs

@@ -658,15 +658,15 @@ impl World {
     /// world.insert_resource(A(1));
     /// let entity = world.spawn().insert(B(1)).id();
     ///
-    /// world.resource_scope(|mut a: Mut<A>, world| {
+    /// world.resource_scope(|world, mut a: Mut<A>| {
     ///     let b = world.get_mut::<B>(entity).unwrap();
     ///     a.0 += b.0;
     /// });
     /// assert_eq!(world.get_resource::<A>().unwrap().0, 2);
     /// ```
     pub fn resource_scope<T: Component, U>(
         &mut self,
-        f: impl FnOnce(Mut<T>, &mut World) -> U,
+        f: impl FnOnce(&mut World, Mut<T>) -> U,
     ) -> U {
         let component_id = self
             .components
@@ -692,7 +692,7 @@ impl World {
             last_change_tick: self.last_change_tick(),
             change_tick: self.change_tick(),
         };
-        let result = f(value, self);
+        let result = f(self, value);
         let resource_archetype = self.archetypes.resource_mut();
         let unique_components = resource_archetype.unique_components_mut();
         let column = unique_components

crates/bevy_render/src/render_graph/nodes/pass_node.rs

@@ -128,7 +128,7 @@ where
         let query_state = self.query_state.get_or_insert_with(|| world.query());
         let cameras = &self.cameras;
         let commands = &mut self.commands;
-        world.resource_scope(|mut active_cameras: Mut<ActiveCameras>, world| {
+        world.resource_scope(|world, mut active_cameras: Mut<ActiveCameras>| {
             let mut pipeline_camera_commands = HashMap::default();
             let pipelines = world.get_resource::<Assets<PipelineDescriptor>>().unwrap();
             let render_resource_context = &**world

crates/bevy_scene/src/scene_spawner.rs

@@ -115,7 +115,7 @@ impl SceneSpawner {
         scene_handle: &Handle<DynamicScene>,
         entity_map: &mut EntityMap,
     ) -> Result<(), SceneSpawnError> {
-        world.resource_scope(|scenes: Mut<Assets<DynamicScene>>, world| {
+        world.resource_scope(|world, scenes: Mut<Assets<DynamicScene>>| {
             let scene =
                 scenes
                     .get(scene_handle)
@@ -145,7 +145,7 @@ impl SceneSpawner {
         };
         let type_registry = world.get_resource::<TypeRegistryArc>().unwrap().clone();
         let type_registry = type_registry.read();
-        world.resource_scope(|scenes: Mut<Assets<Scene>>, world| {
+        world.resource_scope(|world, scenes: Mut<Assets<Scene>>| {
             let scene =
                 scenes
                     .get(&scene_handle)
@@ -297,7 +297,7 @@ impl SceneSpawner {
 }
 
 pub fn scene_spawner_system(world: &mut World) {
-    world.resource_scope(|mut scene_spawner: Mut<SceneSpawner>, world| {
+    world.resource_scope(|world, mut scene_spawner: Mut<SceneSpawner>| {
         let scene_asset_events = world
             .get_resource::<Events<AssetEvent<DynamicScene>>>()
             .unwrap();

crates/bevy_wgpu/src/wgpu_renderer.rs

@@ -101,7 +101,7 @@ impl WgpuRenderer {
     }
 
     pub fn run_graph(&mut self, world: &mut World) {
-        world.resource_scope(|mut render_graph: Mut<RenderGraph>, world| {
+        world.resource_scope(|world, mut render_graph: Mut<RenderGraph>| {
             render_graph.prepare(world);
             // stage nodes
             let mut stager = DependentNodeStager::loose_grouping();