Struct shred::Write

pub struct Write<'a, T: 'a, F = DefaultProvider> { /* fields omitted */ }

Allows to fetch a resource in a system mutably.

If the resource isn't strictly required, you should use Option<Write<T>>.

Type parameters

• T: The type of the resource
• F: The setup handler (default: DefaultProvider)

Trait Implementations

impl<'a, T, F> Deref for Write<'a, T, F> where
    T: Resource, 

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<'a, T, F> DerefMut for Write<'a, T, F> where
    T: Resource, 

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

Mutably dereferences the value.

impl<'a, T, F> From<FetchMut<'a, T>> for Write<'a, T, F>

fn from(inner: FetchMut<'a, T>) -> Self

Performs the conversion.

impl<'a, T, F> SystemData<'a> for Write<'a, T, F> where
    T: Resource,
    F: SetupHandler<T>, 

fn setup(world: &mut World)

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

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.

fn reads() -> Vec<ResourceId>

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

fn writes() -> Vec<ResourceId>

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