Struct freya::prelude::computed::Tracked

pub struct Tracked<I> { /* private fields */ }

Tracked state is state that can drive Selector state

Tracked state will efficiently update any Selector state that is reading from it, but it is not readable on it’s own.

Implementations

impl<I> Tracked<I>

pub fn new(cx: &ScopeState, state: I) -> Tracked<I>

Create a new tracked state

pub fn compute<O>( &self, compute: impl FnMut(&I) -> O + 'static ) -> Selector<O, I>where O: PartialEq + 'static,

Create a new Selector state from this tracked state

pub fn write(&self) -> TrackedMut<'_, I>

Write to the tracked state

Trait Implementations

impl<I> Clone for Tracked<I>where I: Clone,

fn clone(&self) -> Tracked<I>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<I> PartialEq for Tracked<I>where I: PartialEq,

fn eq(&self, other: &Tracked<I>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.