Struct SignalField

pub struct SignalField<M, T>
where
    M: FieldMeta<Type = T>,
    T: Clone + 'static,
{ /* private fields */ }

Implementations

impl<M, T> SignalField<M, T>

where M: FieldMeta<Type = T>, T: Clone + 'static,

pub fn new(value: T) -> SignalField<M, T>

Trait Implementations

impl<M, T> Clone for SignalField<M, T>

where T: Clone + 'static, M: FieldMeta<Type = T>,

fn clone(&self) -> SignalField<M, T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<M, T> Field for SignalField<M, T>

where T: Clone + 'static, M: FieldMeta<Type = T>,

fn label(&self) -> &'static str

字段名称

fn required(&self) -> bool

字段是否必须

fn validate(&self) -> Option<Cow<'static, str>>

字段校验

fn set_default(&self)

设置默认值

impl<M, T> SignalGet for SignalField<M, T>

where T: Clone + 'static, M: FieldMeta<Type = T>,

type Value = T

The value held by the signal.

fn get(&self) -> <SignalField<M, T> as SignalGet>::Value

Clones and returns the current value of the signal, and subscribes the running effect to this signal.

fn try_get(&self) -> Option<<SignalField<M, T> as SignalGet>::Value>

Clones and returns the signal value, returning Some if the signal is still alive, and None otherwise.

impl<M, T> SignalGetUntracked for SignalField<M, T>

where T: Clone + 'static, M: FieldMeta<Type = T>,

type Value = T

The value held by the signal.

fn get_untracked(&self) -> <SignalField<M, T> as SignalGetUntracked>::Value

Gets the signal’s value without creating a dependency on the current scope.

fn try_get_untracked( &self, ) -> Option<<SignalField<M, T> as SignalGetUntracked>::Value>

Gets the signal’s value without creating a dependency on the current scope. Returns [Some(T)] if the signal is still valid, None otherwise.

impl<M, T> SignalWith for SignalField<M, T>

where T: Clone + 'static, M: FieldMeta<Type = T>,

type Value = T

The value held by the signal.

fn with<O>( &self, f: impl FnOnce(&<SignalField<M, T> as SignalWith>::Value) -> O, ) -> O

Applies a function to the current value of the signal, and subscribes the running effect to this signal.

fn try_with<O>( &self, f: impl FnOnce(&<SignalField<M, T> as SignalWith>::Value) -> O, ) -> Option<O>

Applies a function to the current value of the signal, and subscribes the running effect to this signal. Returns Some if the signal is valid and the function ran, otherwise returns None.

fn track(&self)

Subscribes to this signal in the current reactive scope without doing anything with its value.

impl<M, T> SignalWithUntracked for SignalField<M, T>

where T: Clone + 'static, M: FieldMeta<Type = T>,

type Value = T

The value held by the signal.

fn with_untracked<O>( &self, f: impl FnOnce(&<SignalField<M, T> as SignalWithUntracked>::Value) -> O, ) -> O

Runs the provided closure with a reference to the current value without creating a dependency on the current scope.

fn try_with_untracked<O>( &self, f: impl FnOnce(&<SignalField<M, T> as SignalWithUntracked>::Value) -> O, ) -> Option<O>

Runs the provided closure with a reference to the current value without creating a dependency on the current scope. Returns [Some(O)] if the signal is still valid, None otherwise.

impl<M, T> Copy for SignalField<M, T>

where T: Clone + 'static, M: FieldMeta<Type = T>,