Struct typed_generational_arena::NonzeroGeneration

pub struct NonzeroGeneration<T: NonZeroAble> { /* fields omitted */ }

A generation counter which is always nonzero. Useful for size optimizations on Option

Trait Implementations

impl<T> FixedGenerationalIndex for NonzeroGeneration<T> where
    T: NonZeroAble + One + Add<Output = T> + Copy + Eq + From<<<T as NonZeroAble>::NonZero as NonZero>::Primitive>,
    T::NonZero: PartialOrd + Eq + Copy, 

fn first_generation() -> Self

Get an object representing the first possible generation

fn generation_lt(&self, other: &Self) -> bool

Compare this generation with another.

impl<T> GenerationalIndex for NonzeroGeneration<T> where
    T: NonZeroAble + One + Add<Output = T> + Copy + Eq + From<<<T as NonZeroAble>::NonZero as NonZero>::Primitive>,
    T::NonZero: PartialOrd + Eq + Copy, 

fn increment_generation(&mut self)

Increment the generation of this object. May wrap or panic on overflow depending on type.

impl<T: Debug + NonZeroAble> Debug for NonzeroGeneration<T> where
    T::NonZero: Debug, 

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

Formats the value using the given formatter.

impl<T: PartialEq + NonZeroAble> PartialEq<NonzeroGeneration<T>> for NonzeroGeneration<T> where
    T::NonZero: PartialEq, 

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

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &NonzeroGeneration<T>) -> bool

This method tests for !=.

impl<T: Eq + NonZeroAble> Eq for NonzeroGeneration<T> where
    T::NonZero: Eq, 

impl<T: Ord + NonZeroAble> Ord for NonzeroGeneration<T> where
    T::NonZero: Ord, 

fn cmp(&self, other: &NonzeroGeneration<T>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl<T: PartialOrd + NonZeroAble> PartialOrd<NonzeroGeneration<T>> for NonzeroGeneration<T> where
    T::NonZero: PartialOrd, 

fn partial_cmp(&self, other: &NonzeroGeneration<T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &NonzeroGeneration<T>) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &NonzeroGeneration<T>) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &NonzeroGeneration<T>) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &NonzeroGeneration<T>) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T: Copy + NonZeroAble> Copy for NonzeroGeneration<T> where
    T::NonZero: Copy, 

impl<T: Clone + NonZeroAble> Clone for NonzeroGeneration<T> where
    T::NonZero: Clone, 

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

Returns a copy of the value.

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

Performs copy-assignment from source.