Trait FetchComponent 

pub trait FetchComponent {
    type Component: 'static;
    type Fetch<'w>: Copy;
    type Item<'w>;
    type Slice<'w>;

    const IS_MUT: bool;

    // Required methods
    unsafe fn fetch_raw<'w>(
        arch: &Archetype,
        system_tick: u32,
    ) -> Option<Self::Fetch<'w>>;
    unsafe fn get_item<'w>(fetch: Self::Fetch<'w>, row: usize) -> Self::Item<'w>;
    unsafe fn get_slice<'w>(
        fetch: Self::Fetch<'w>,
        len: usize,
    ) -> Self::Slice<'w>;
}

Required Associated Constants

const IS_MUT: bool

Required Associated Types

type Component: 'static

type Fetch<'w>: Copy

type Item<'w>

type Slice<'w>

Required Methods

unsafe fn fetch_raw<'w>( arch: &Archetype, system_tick: u32, ) -> Option<Self::Fetch<'w>>

Bir archetype bazında ham pointer fetch hazırlar.

Safety

Archetype geçerli olmalı ve döndürülen fetch pointer’ı archetype’ın yaşam süresi boyunca geçerli kalmalıdır.

unsafe fn get_item<'w>(fetch: Self::Fetch<'w>, row: usize) -> Self::Item<'w>

Ham pointer’dan veriyi getirir.

Safety

row değeri archetype’ın eleman sayısından küçük olmalıdır.

unsafe fn get_slice<'w>(fetch: Self::Fetch<'w>, len: usize) -> Self::Slice<'w>

Chunk olarak ardışık belleği Slice şeklinde getirir (SIMD).

Safety

len değeri archetype’ın eleman sayısını aşmamalıdır.

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.

Implementations on Foreign Types

impl<T: 'static> FetchComponent for &T

const IS_MUT: bool = false

type Component = T

type Fetch<'w> = *const u8

type Item<'w> = &'w T

type Slice<'w> = &'w [T]

unsafe fn fetch_raw<'w>( arch: &Archetype, _system_tick: u32, ) -> Option<Self::Fetch<'w>>

unsafe fn get_item<'w>(fetch: Self::Fetch<'w>, row: usize) -> Self::Item<'w>

unsafe fn get_slice<'w>(fetch: Self::Fetch<'w>, len: usize) -> Self::Slice<'w>

Implementors

impl<T: 'static> FetchComponent for Mut<'_, T>

const IS_MUT: bool = true

type Component = T

type Fetch<'w> = (*mut u8, *mut ComponentTicks, u32)

type Item<'w> = Mut<'w, T>

type Slice<'w> = &'w mut [T]