Struct State 

pub struct State<T: Send + Sync + 'static> { /* private fields */ }

响应式状态持有者。 支持原子读写、变更通知、算术运算等。

Implementations

impl<T: Send + Sync + Copy + 'static> State<T>

pub fn get(&self) -> T

impl<T: Send + Sync + 'static> State<T>

pub fn try_read(&self) -> Option<StateRef<'_, T>>

尝试获取只读引用，失败时返回 None。

pub fn read(&self) -> StateRef<'_, T>

获取只读引用，失败时 panic。

pub fn try_write(&self) -> Option<StateMutRef<'_, T>>

尝试获取可变引用，支持变更通知，失败时返回 None。

pub fn write(&self) -> StateMutRef<'_, T>

获取可变引用，支持变更通知，失败时 panic。

pub fn try_write_no_update(&self) -> Option<StateMutNoUpdate<'_, T>>

尝试获取可变引用，不触发变更通知，失败时返回 None。

pub fn write_no_update(&self) -> StateMutNoUpdate<'_, T>

获取可变引用，不触发变更通知，失败时 panic。

pub fn set(&mut self, value: T)

设置状态值，触发变更通知。

pub fn set_no_update(&mut self, value: T)

设置状态值，不触发变更通知。

Trait Implementations

impl<T: Add<Output = T> + Copy + Sync + Send + 'static> Add<T> for State<T>

type Output = T

The resulting type after applying the + operator.

fn add(self, rhs: T) -> Self::Output

Performs the + operation.

impl<T: AddAssign<T> + Copy + Sync + Send + 'static> AddAssign<T> for State<T>

fn add_assign(&mut self, rhs: T)

Performs the += operation.

impl<T: Send + Sync + 'static> Clone for State<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug + Sync + Send + 'static> Debug for State<T>

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

Formats the value using the given formatter.

impl<T: Display + Sync + Send + 'static> Display for State<T>

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

Formats the value using the given formatter.

impl<T: Div<Output = T> + Copy + Sync + Send + 'static> Div<T> for State<T>

type Output = T

The resulting type after applying the / operator.

fn div(self, rhs: T) -> Self::Output

Performs the / operation.

impl<T: DivAssign<T> + Copy + Sync + Send + 'static> DivAssign<T> for State<T>

fn div_assign(&mut self, rhs: T)

Performs the /= operation.

impl<T: Hash + Sync + Send> Hash for State<T>

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<T: Mul<Output = T> + Copy + Sync + Send + 'static> Mul<T> for State<T>

type Output = T

The resulting type after applying the * operator.

fn mul(self, rhs: T) -> Self::Output

Performs the * operation.

impl<T: MulAssign<T> + Copy + Sync + Send + 'static> MulAssign<T> for State<T>

fn mul_assign(&mut self, rhs: T)

Performs the *= operation.

impl<T: PartialEq<T> + Sync + Send + 'static> PartialEq<T> for State<T>

fn eq(&self, other: &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: PartialEq<T> + Sync + Send + 'static> PartialEq for State<T>

fn eq(&self, other: &State<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: PartialOrd<T> + Sync + Send + 'static> PartialOrd<T> for State<T>

fn partial_cmp(&self, other: &T) -> 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<T: PartialOrd<T> + Sync + Send + 'static> PartialOrd for State<T>

fn partial_cmp(&self, other: &State<T>) -> 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<T: Sub<Output = T> + Copy + Sync + Send + 'static> Sub<T> for State<T>

type Output = T

The resulting type after applying the - operator.

fn sub(self, rhs: T) -> Self::Output

Performs the - operation.

impl<T: SubAssign<T> + Copy + Sync + Send + 'static> SubAssign<T> for State<T>

fn sub_assign(&mut self, rhs: T)

Performs the -= operation.

impl<T: Send + Sync + 'static> Copy for State<T>

impl<T: Eq + Sync + Send + 'static> Eq for State<T>