Struct State

pub struct State<K, V> { /* private fields */ }

State is an abstract object that allows a particular kind of state to be associated with some data.

Implementations

impl<K, V> State<K, V>

pub fn new(data: V) -> Self

pub fn data(&self) -> &V

pub fn is_state<R: 'static>(&self) -> bool

where K: 'static,

Trait Implementations

impl<K: Clone, V: Clone> Clone for State<K, V>

fn clone(&self) -> State<K, V>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<K: Debug, V: Debug> Debug for State<K, V>

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

Formats the value using the given formatter.

impl<K: Default, V: Default> Default for State<K, V>

fn default() -> State<K, V>

Returns the “default value” for a type.

impl<K: Hash, V: Hash> Hash for State<K, V>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<K: Ord, V: Ord> Ord for State<K, V>

fn cmp(&self, other: &State<K, V>) -> Ordering

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized,

Restrict a value to a certain interval.

impl<K: PartialEq, V: PartialEq> PartialEq for State<K, V>

fn eq(&self, other: &State<K, V>) -> 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<K: PartialOrd, V: PartialOrd> PartialOrd for State<K, V>

fn partial_cmp(&self, other: &State<K, V>) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<Q, T> RawState for State<Q, T>

type Inner = T

type Tag = Q

impl<Q, T> Stateful<T> for State<Q, T>

type State = State<Q, T>

impl<K: Copy, V: Copy> Copy for State<K, V>

impl<K: Eq, V: Eq> Eq for State<K, V>

impl<K, V> StructuralPartialEq for State<K, V>