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Replaced EntityCommand Implementation for FnOnce #9604

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Aug 28, 2023
Merged

Replaced EntityCommand Implementation for FnOnce #9604

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11 changes: 6 additions & 5 deletions crates/bevy_ecs/src/system/commands/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@ use crate::{
self as bevy_ecs,
bundle::Bundle,
entity::{Entities, Entity},
world::{FromWorld, World},
world::{EntityMut, FromWorld, World},
};
use bevy_ecs_macros::SystemParam;
use bevy_utils::tracing::{error, info};
Expand Down Expand Up @@ -805,12 +805,13 @@ impl<'w, 's, 'a> EntityCommands<'w, 's, 'a> {
///
/// ```
/// # use bevy_ecs::prelude::*;
/// # use bevy_ecs::world::EntityMut;
/// # fn my_system(mut commands: Commands) {
/// commands
/// .spawn_empty()
/// // Closures with this signature implement `EntityCommand`.
/// .add(|id: Entity, world: &mut World| {
/// println!("Executed an EntityCommand for {id:?}");
/// .add(|entity: EntityMut| {
/// println!("Executed an EntityCommand for {:?}", entity.id());
/// });
/// # }
/// # bevy_ecs::system::assert_is_system(my_system);
Expand Down Expand Up @@ -848,10 +849,10 @@ where

impl<F> EntityCommand for F
where
F: FnOnce(Entity, &mut World) + Send + 'static,
F: FnOnce(EntityMut) + Send + 'static,
{
fn apply(self, id: Entity, world: &mut World) {
self(id, world);
self(world.entity_mut(id));
}
}

Expand Down