Struct specs::Read[][src]

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

Allows to fetch a resource in a system immutably.

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

Type parameters

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

Trait Implementations

impl<'a, T, F> SystemData<'a> for Read<'a, T, F> where
    F: SetupHandler<T>,
    T: Resource
[src]

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

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

Important traits for Vec<u8>

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

Important traits for Vec<u8>

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

impl<'a, T, F> Deref for Read<'a, T, F> where
    T: Resource
[src]

The resulting type after dereferencing.

Important traits for &'a mut R

Dereferences the value.

impl<'a, T, F> From<Fetch<'a, T>> for Read<'a, T, F>
[src]

Performs the conversion.

Auto Trait Implementations

impl<'a, T, F> Send for Read<'a, T, F> where
    F: Send,
    T: Sync

impl<'a, T, F> Sync for Read<'a, T, F> where
    F: Sync,
    T: Sync