Enum Entry 

pub enum Entry<T> {
    Occupied {
        value: T,
        generation: u64,
    },
    Free {
        next_free_idx: Option<usize>,
    },
    Unmapped,
}

An allocation entry in a generational arena.

Variants

Occupied

An occupied entry containing an allocated value and the associated generation counter.

Fields

value: T

generation: u64

Free

Free entry pointing to next free entry in the free list.

Fields

next_free_idx: Option<usize>

Unmapped

An unmapped arena entry.

Trait Implementations

impl<T: Clone> Clone for Entry<T>

fn clone(&self) -> Entry<T>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug> Debug for Entry<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T> Default for Entry<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T: PartialEq> PartialEq for Entry<T>

fn eq(&self, other: &Entry<T>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: Copy> Copy for Entry<T>

impl<T: Eq> Eq for Entry<T>

impl<T> StructuralPartialEq for Entry<T>