19 lines
385 B
Rust
19 lines
385 B
Rust
// Related to Bevy regression #118553
|
|
|
|
pub trait WorldQuery {}
|
|
impl WorldQuery for &u8 {}
|
|
|
|
pub struct Query<Q: WorldQuery>(Q);
|
|
|
|
pub trait SystemParam {
|
|
type State;
|
|
}
|
|
impl<Q: WorldQuery + 'static> SystemParam for Query<Q> {
|
|
type State = ();
|
|
// `Q: 'static` is required because we need the TypeId of Q ...
|
|
}
|
|
|
|
pub struct ParamSet<T: SystemParam>(T)
|
|
where
|
|
T::State: Sized;
|