Struct QuerySystemParamState

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pub struct QuerySystemParamState<Q: WorldQuery, F: WorldQuery> { /* private fields */ }

Expand description

Cached state for Query as a system parameter.

This stores the initialized query and filter states, allowing efficient reuse across multiple system runs.

Trait Implementations§

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impl<Q: Clone + WorldQuery, F: Clone + WorldQuery> Clone for QuerySystemParamState<Q, F>
where Q::State: Clone, F::State: Clone,

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fn clone(&self) -> QuerySystemParamState<Q, F>

Returns a duplicate of the value. Read more

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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl<Q: WorldQuery, F: WorldQuery> Debug for QuerySystemParamState<Q, F>
where Q::State: Debug, F::State: Debug,

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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impl<Q: WorldQuery + 'static, F: WorldQuery + 'static> SystemParamState for QuerySystemParamState<Q, F>
where Q::State: Clone + Send + Sync, F::State: Clone + Send + Sync,

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fn init(world: &mut World) -> Self

Initializes the state from the world. Read more

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fn apply(&mut self, _world: &mut World)

Applies any pending state changes. Read more

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impl<Q: WorldQuery, F: WorldQuery> Send for QuerySystemParamState<Q, F>
where Q::State: Send, F::State: Send,

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impl<Q: WorldQuery, F: WorldQuery> Sync for QuerySystemParamState<Q, F>
where Q::State: Sync, F::State: Sync,

Auto Trait Implementations§

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impl<Q, F> Freeze for QuerySystemParamState<Q, F>
where <Q as WorldQuery>::State: Freeze, <F as WorldQuery>::State: Freeze,

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impl<Q, F> RefUnwindSafe for QuerySystemParamState<Q, F>
where <Q as WorldQuery>::State: RefUnwindSafe, <F as WorldQuery>::State: RefUnwindSafe,

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impl<Q, F> Unpin for QuerySystemParamState<Q, F>
where <Q as WorldQuery>::State: Unpin, <F as WorldQuery>::State: Unpin,

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impl<Q, F> UnsafeUnpin for QuerySystemParamState<Q, F>
where <Q as WorldQuery>::State: UnsafeUnpin, <F as WorldQuery>::State: UnsafeUnpin,

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impl<Q, F> UnwindSafe for QuerySystemParamState<Q, F>
where <Q as WorldQuery>::State: UnwindSafe, <F as WorldQuery>::State: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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