flax 0.7.1

An ergonomic archetypical ECS
Documentation 
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use crate::archetype::Slot;

use super::PreparedFetch;

/// A fetch which only yields items which can freely *alias*.
///
/// This makes the `fetch` method *safer* to implement and can be called with a covariant lifetime.
pub trait RandomFetch<'q>: PreparedFetch<'q> {
    /// Fetch the shared item from the given slot
    ///
    /// # Safety
    /// Slot must be valid
    unsafe fn fetch_shared(&'q self, slot: Slot) -> Self::Item;
    /// Use an existing chunk to access an arbitrary slot
    /// # Safety
    /// Slot must be valid
    unsafe fn fetch_shared_chunk(chunk: &Self::Chunk, slot: Slot) -> Self::Item;
}