Struct MapRef 

pub struct MapRef<'a, T> { /* private fields */ }

Immutable reference container for Persist returned by Entities::borrow()

This struct is required to contain a hidden borrow to the requested Persist. The reason for this is so we can borrow multiple Persist, but not break the borrow checker rules for borrows on a single Persist.

Methods from Deref<Target = Persist<T>>

pub fn len(&self) -> usize

Returns the actual used length regardless of capacity

pub fn is_empty(&self) -> bool

pub fn capacity(&self) -> usize

Returns the storage capacity

pub fn get(&self, index: usize) -> Option<&T>

pub fn is_index_live(&self, index: usize) -> bool

Check if there is a value at this index

pub fn iter(&self) -> Iter<'_, T>

Trait Implementations

impl<'a, T> Deref for MapRef<'a, T>

type Target = Persist<T>

The resulting type after dereferencing.

fn deref(&self) -> &Persist<T>

Dereferences the value.