Struct Read 

pub struct Read<T>(/* private fields */)
where
    T: Component;

Reads a single entity data component type from a chunk.

Trait Implementations

impl<T> Clone for Read<T>

where T: Component,

fn clone(&self) -> Read<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Copy for Read<T>

where T: Component,

impl<T> Debug for Read<T>

where T: Debug + Component,

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

Formats the value using the given formatter.

impl<T> Default for Read<T>

where T: Component,

fn default() -> Read<T>

Returns the “default value” for a type.

impl<'a, T> DefaultFilter for Read<T>

where T: Component,

type Filter = EntityFilterTuple<ComponentFilter<T>, Passthrough, Passthrough>

The type of entity filter constructed.

fn filter() -> <Read<T> as DefaultFilter>::Filter

constructs an entity filter.

impl<T> ResourceSet for Read<T>

where T: Resource,

type PreparedResources = PreparedRead<T>

unsafe fn fetch_unchecked( resources: &Resources, ) -> <Read<T> as ResourceSet>::PreparedResources

Fetches all defined resources, without checking mutability.

fn fetch_mut(resources: &mut Resources) -> Self::PreparedResources

fn fetch(resources: &Resources) -> Self::PreparedResources

where Self: ReadOnly,

impl<'a, T> View<'a> for Read<T>

where T: Component,

type Iter = RefIter<'a, T, Iter<'a, T>>

The iterator over the chunk data.

fn fetch( _: &'a ArchetypeData, chunk: &'a ComponentStorage, _: ChunkIndex, _: SetIndex, ) -> <Read<T> as View<'a>>::Iter

Pulls data out of a chunk.

fn validate() -> bool

Validates that the view does not break any component borrowing rules.

fn reads<D>() -> bool

where D: Component,

Determines if the view reads the specified data type.

fn writes<D>() -> bool

where D: Component,

Determines if the view writes to the specified data type.

fn validate_access(access: &ComponentAccess<'_>) -> bool

Determines if the given component access includes all permissions required by the view.

fn requires_permissions() -> Permissions<ComponentTypeId>

Returns the set of permissions required by the view.