Struct DerivedRwSignal

pub struct DerivedRwSignal<T: 'static, O, GF: Fn(&T) -> O + Clone + 'static, UF: Fn(&O) -> T + 'static> { /* private fields */ }

A signal that is derived from an RwSignal but lets you specify getters and setters for the signal.

This is useful when you want a single state variable and don’t want to use effects to synchronize multiple signals.

This is also useful when you want a derived signal that implements the SignalGet, SignalWith, etc. traits.

Implementations

impl<T, O, GF, UF> DerivedRwSignal<T, O, GF, UF>

where GF: Fn(&T) -> O + Clone + 'static, UF: Fn(&O) -> T + 'static,

pub fn new(signal: RwSignal<T>, getter: GF, setter: UF) -> Self

Trait Implementations

impl<T, O, GF: Fn(&T) -> O + Copy, UF: Fn(&O) -> T + Copy> Clone for DerivedRwSignal<T, O, GF, UF>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

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

fn id(&self) -> Id

get the Signal Id

fn try_get(&self) -> Option<O>

where O: 'static,

Try to clone and return the current value stored in the Signal, and returns None if it’s already disposed. It subscribes to the current running effect.

fn try_get_untracked(&self) -> Option<O>

where O: 'static,

Try to clone and return the current value stored in the Signal, and returns None if it’s already disposed. It doesn’t subscribe to the current running effect.

fn get_untracked(&self) -> T

where T: 'static,

Clones and returns the current value stored in the Signal, but it doesn’t subscribe to the current running effect.

fn get(&self) -> T

where T: 'static,

Clones and returns the current value stored in the Signal, and subscribes to the current running effect to this Signal.

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

fn id(&self) -> Id

fn track(&self)

Only subscribes to the current running effect to this Signal.

fn try_track(&self)

If the signal isn’t disposed,

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

fn id(&self) -> Id

get the Signal Id

fn set(&self, new_value: O)

where O: 'static,

Sets the new_value to the Signal and triggers effect run

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

where O: 'static,

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

fn try_update<O2>(&self, f: impl FnOnce(&mut O) -> O2) -> Option<O2>

where O: 'static,

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

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

fn id(&self) -> Id

get the Signal Id

fn with<O2>(&self, f: impl FnOnce(&O) -> O2) -> O2

where T: 'static,

Applies a closure to the current value stored in the Signal, and subscribes to the current running effect to this Memo.

fn with_untracked<O2>(&self, f: impl FnOnce(&O) -> O2) -> O2

where T: 'static,

Applies a closure to the current value stored in the Signal, but it doesn’t subscribe to the current running effect.

fn try_with<O2>(&self, f: impl FnOnce(Option<&O>) -> O2) -> O2

where T: 'static,

If the signal isn’t disposed, applies a closure to the current value stored in the Signal. It subscribes to the current running effect.

fn try_with_untracked<O2>(&self, f: impl FnOnce(Option<&O>) -> O2) -> O2

where T: 'static,

If the signal isn’t disposed, applies a closure to the current value stored in the Signal, but it doesn’t subscribe to the current running effect.

impl<T, O, GF: Fn(&T) -> O + Copy, UF: Fn(&O) -> T + Copy> Copy for DerivedRwSignal<T, O, GF, UF>