Struct ArcStoredValue

pub struct ArcStoredValue<T> {
    value: Arc<RwLock<T>>,
}

A reference-counted getter for any value non-reactively.

This is a reference-counted value, which is Clone but not Copy. For arena-allocated Copy values, use StoredValue.

This allows you to create a stable reference for any value by storing it within the reactive system. Unlike e.g. ArcRwSignal, it is not reactive; accessing it does not cause effects to subscribe, and updating it does not notify anything else.

Fields

value: Arc<RwLock<T>>

Implementations

impl<T> ArcStoredValue<T>

pub fn new(value: T) -> ArcStoredValue<T>

Creates a new stored value, taking the initial value as its argument.

Trait Implementations

impl<T> Clone for ArcStoredValue<T>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Debug for ArcStoredValue<T>

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

Formats the value using the given formatter.

impl<T> Default for ArcStoredValue<T>

where T: Default,

fn default() -> ArcStoredValue<T>

Returns the “default value” for a type.

impl<T> DefinedAt for ArcStoredValue<T>

fn defined_at(&self) -> Option<&'static Location<'static>>

Returns the location at which the signal was defined. This is usually simply None in release mode.

impl<T> From<ArcStoredValue<T>> for StoredValue<T>

where T: Send + Sync + 'static,

fn from(value: ArcStoredValue<T>) -> StoredValue<T>

Converts to this type from the input type.

impl<T, S> From<StoredValue<T, S>> for ArcStoredValue<T>

where S: Storage<ArcStoredValue<T>>,

fn from(value: StoredValue<T, S>) -> ArcStoredValue<T>

Converts to this type from the input type.

impl<T> Hash for ArcStoredValue<T>

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

where H: Hasher,

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> IntoInner for ArcStoredValue<T>

type Value = T

The type of the value contained in the signal.

fn into_inner(self) -> Option<<ArcStoredValue<T> as IntoInner>::Value>

Returns the inner value if this is the only reference to the signal. Otherwise, returns None and drops this reference.

impl<T> IsDisposed for ArcStoredValue<T>

fn is_disposed(&self) -> bool

If true, the signal cannot be accessed without a panic.

impl<T> PartialEq for ArcStoredValue<T>

fn eq(&self, other: &ArcStoredValue<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> ReadValue for ArcStoredValue<T>

where T: 'static,

type Value = ReadGuard<T, Plain<T>>

The guard type that will be returned, which can be dereferenced to the value.

fn try_read_value(&self) -> Option<ReadGuard<T, Plain<T>>>

Returns the non-reactive guard, or None if the value has already been disposed.

fn read_value(&self) -> Self::Value

Returns the non-reactive guard.

impl<T> WriteValue for ArcStoredValue<T>

where T: 'static,

type Value = T

The type of the value’s value.

fn try_write_value(&self) -> Option<UntrackedWriteGuard<T>>

Returns a non-reactive write guard, or None if the value has already been disposed.

fn write_value(&self) -> UntrackedWriteGuard<Self::Value>

Returns a non-reactive write guard.

impl<T> Eq for ArcStoredValue<T>