Trait Fetch

pub trait Fetch<'s> {
    type Component: Component;
    type Iter: ExactSizeIterator + 's;

    // Required method
    unsafe fn fetch<S: Storage>(storage: &'s S) -> Self::Iter;
}

A helper trait that works in lockstep with Read and Write to borrow components either mutable or immutable.

Required Associated Types

type Component: Component

type Iter: ExactSizeIterator + 's

Required Methods

unsafe fn fetch<S: Storage>(storage: &'s S) -> Self::Iter

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<'s, C: Component> Fetch<'s> for Read<C>

type Component = C

type Iter = Iter<'s, C>

impl<'s, C: Component> Fetch<'s> for Write<C>

type Component = C

type Iter = IterMut<'s, C>