Struct ParentData

Source

pub struct ParentData<'a, P>where
    P: Component + Parent,
    P::Storage: Tracked,
{ /* private fields */ }

Expand description

Utility struct for the data needed by the Hierarchy maintain.

Trait Implementations§

Source §

impl<'a, P> SystemData<'a> for ParentData<'a, P>
where P: Component + Parent, P::Storage: Tracked, Entities<'a>: SystemData<'a>, ReadStorage<'a, P>: SystemData<'a>,

Source §

fn setup(world: &mut World)

Sets up the system data for fetching it from the World.

Source §

fn fetch(world: &'a World) -> Self

Fetches the system data from World. Note that this is only specified for one concrete lifetime 'a, you need to implement the SystemData trait for every possible lifetime.

Source §

fn reads() -> Vec<ResourceId>

Returns all read dependencies as fetched from Self::fetch. Read more

Source §

fn writes() -> Vec<ResourceId>

Returns all write dependencies as fetched from Self::fetch. Read more

Auto Trait Implementations§

§

impl<'a, P> !UnwindSafe for ParentData<'a, P>

Blanket Implementations§

Source §

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

Source §

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

Source §

impl<T> Any for T
where T: Any,

Source §

fn get_type_id(&self) -> TypeId

Source §

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

Source §

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

Source §

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

Source §

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

Mutably borrows from an owned value. Read more

Source §

impl<'a, T> DynamicSystemData<'a> for T
where T: SystemData<'a>,

Source §

type Accessor = StaticAccessor<T>

The accessor of the SystemData, which specifies the read and write dependencies and does the fetching.

Source §

fn setup(_: &StaticAccessor<T>, world: &mut World)

Sets up World for fetching this system data.

Source §

fn fetch(_: &StaticAccessor<T>, world: &'a World) -> T

Creates a new resource bundle by fetching the required resources from the World struct. Read more

Source §

impl<T> From<T> for T

Source §

fn from(t: T) -> T

Returns the argument unchanged.

Source §

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

Source §

fn into(self) -> U

Calls U::from(self).

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

Source §

impl<T> IntoEither for T

Source §

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

Source §

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

Source §