Trait EntityRef

pub trait EntityRef: Copy + Eq {
    // Required methods
    fn new(_: usize) -> Self;
    fn index(self) -> usize;
}

A type wrapping a small integer index should implement EntityRef so it can be used as the key of an SecondaryMap or SparseMap.

Required Methods

fn new(_: usize) -> Self

Create a new entity reference from a small integer. This should crash if the requested index is not representable.

fn index(self) -> usize

Get the index that was used to create this entity reference.

Object Safety

This trait is not object safe.

Implementors