Struct flatbox_ecs::PreparedQuery

impl<Q> PreparedQuery<Q>
where Q: Query,

pub fn new() -> PreparedQuery<Q>

Create a prepared query which is not yet attached to any world

pub fn query<'q>(&'q mut self, world: &'q World) -> PreparedQueryBorrow<'q, Q>

Query world, using dynamic borrow checking

This will panic if it would violate an existing unique reference or construct an invalid unique reference.

pub fn query_mut<'q>( &'q mut self, world: &'q mut World ) -> PreparedQueryIter<'q, Q> ⓘ

Query a uniquely borrowed world

Avoids the cost of the dynamic borrow checking performed by query.

pub fn view_mut<'q>(&'q mut self, world: &'q mut World) -> PreparedView<'q, Q>

Provide random access to query results for a uniquely borrow world

Trait Implementations§

impl<Q> Default for PreparedQuery<Q>
where Q: Query,

fn default() -> PreparedQuery<Q>

Returns the “default value” for a type. Read more

Auto Trait Implementations§

impl<Q> Freeze for PreparedQuery<Q>

impl<Q> RefUnwindSafe for PreparedQuery<Q>
where <Q as Query>::Fetch: RefUnwindSafe, <<Q as Query>::Fetch as Fetch>::State: RefUnwindSafe,

impl<Q> Send for PreparedQuery<Q>
where <Q as Query>::Fetch: Send, <<Q as Query>::Fetch as Fetch>::State: Send,

impl<Q> Sync for PreparedQuery<Q>
where <Q as Query>::Fetch: Sync, <<Q as Query>::Fetch as Fetch>::State: Sync,

impl<Q> Unpin for PreparedQuery<Q>

impl<Q> UnwindSafe for PreparedQuery<Q>
where <Q as Query>::Fetch: UnwindSafe, <<Q as Query>::Fetch as Fetch>::State: UnwindSafe,

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

fn type_name(&self) -> &'static str

Gets the type name of self

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<T> Downcast for T
where T: AsAny + ?Sized,

fn is<T>(&self) -> bool
where T: AsAny,

Returns true if the boxed type is the same as T. Read more

fn downcast_ref<T>(&self) -> Option<&T>
where T: AsAny,

Forward to the method defined on the type Any.

fn downcast_mut<T>(&mut self) -> Option<&mut T>
where T: AsAny,

Forward to the method defined on the type Any.

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

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

impl<T> Pointable for T

const ALIGN: usize = _

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

impl<T> Same for T

type Output = T

Should always be Self

impl<SS, SP> SupersetOf<SS> for SP
where SS: SubsetOf<SP>,

fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more

fn is_in_subset(&self) -> bool

Checks if self is actually part of its subset T (and can be converted to it).

fn to_subset_unchecked(&self) -> SS

Use with care! Same as self.to_subset but without any property checks. Always succeeds.

fn from_subset(element: &SS) -> SP

The inclusion map: converts self to the equivalent element of its superset.

impl<T, U> TryFrom for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

impl<T, U> TryInto for T
where U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.