Trait SignalUpdate

pub trait SignalUpdate<T> {
    // Required method
    fn id(&self) -> Id;

    // Provided methods
    fn set(&self, new_value: T)
       where T: 'static { ... }
    fn update(&self, f: impl FnOnce(&mut T))
       where T: 'static { ... }
    fn try_update<O>(&self, f: impl FnOnce(&mut T) -> O) -> Option<O>
       where T: 'static { ... }
}

Required Methods

fn id(&self) -> Id

get the Signal Id

Provided Methods

fn set(&self, new_value: T)

where T: 'static,

Sets the new_value to the Signal and triggers effect run

fn update(&self, f: impl FnOnce(&mut T))

where T: 'static,

Update the stored value with the given function and triggers effect run

fn try_update<O>(&self, f: impl FnOnce(&mut T) -> O) -> Option<O>

where T: 'static,

Update the stored value with the given function, triggers effect run, and returns the value returned by the function

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<T> SignalUpdate<T> for BaseSignal<T>

impl<T> SignalUpdate<T> for RwSignal<T>

impl<T> SignalUpdate<T> for WriteSignal<T>

impl<T: 'static, O, GF: Fn(&T) -> O + Copy, UF: Fn(&O) -> T + Copy> SignalUpdate<O> for DerivedRwSignal<T, O, GF, UF>