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remove Box from ExclusiveSystemFn (#3063)

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Minor refactor to remove the boxing of the function pointer stored in ExclusiveSystemFn.
This commit is contained in:
Marc Parenteau 2021-11-04 20:55:28 +00:00
parent 91c3b210a2
commit 225d6a138f
2 changed files with 13 additions and 7 deletions
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5
crates/bevy_ecs/src/schedule/system_descriptor.rs
View file

@ -78,7 +78,10 @@ impl IntoSystemDescriptor<()> for ExclusiveSystemDescriptor {
}
}
impl IntoSystemDescriptor<()> for ExclusiveSystemFn {
impl<F> IntoSystemDescriptor<()> for ExclusiveSystemFn<F>
where
F: FnMut(&mut crate::prelude::World) + Send + Sync + 'static,
{
fn into_descriptor(self) -> SystemDescriptor {
new_exclusive_descriptor(Box::new(self)).into_descriptor()
}

15
crates/bevy_ecs/src/system/exclusive_system.rs
View file

@ -15,13 +15,16 @@ pub trait ExclusiveSystem: Send + Sync + 'static {
fn check_change_tick(&mut self, change_tick: u32);
}
pub struct ExclusiveSystemFn {
func: Box<dyn FnMut(&mut World) + Send + Sync + 'static>,
pub struct ExclusiveSystemFn<F> {
func: F,
name: Cow<'static, str>,
last_change_tick: u32,
}
impl ExclusiveSystem for ExclusiveSystemFn {
impl<F> ExclusiveSystem for ExclusiveSystemFn<F>
where
F: FnMut(&mut World) + Send + Sync + 'static,
{
fn name(&self) -> Cow<'static, str> {
self.name.clone()
}
@ -52,13 +55,13 @@ pub trait IntoExclusiveSystem<Params, SystemType> {
fn exclusive_system(self) -> SystemType;
}
impl<F> IntoExclusiveSystem<&mut World, ExclusiveSystemFn> for F
impl<F> IntoExclusiveSystem<&mut World, ExclusiveSystemFn<F>> for F
where
F: FnMut(&mut World) + Send + Sync + 'static,
{
fn exclusive_system(self) -> ExclusiveSystemFn {
fn exclusive_system(self) -> ExclusiveSystemFn<F> {
ExclusiveSystemFn {
func: Box::new(self),
func: self,
name: core::any::type_name::<F>().into(),
last_change_tick: 0,
}