Struct Observable 

pub struct Observable<Data> { /* private fields */ }

Implementations

impl<Data> Observable<Data>

pub fn new(value: Data) -> Observable<Data>

Examples found in repository

examples/event.rs (line 6)

fn main() {
    let a = 1;
    println!("Initial value: {}", a);
    let mut obs1 = Observable::new(a);
    obs1.add_listener(listener1);
    obs1.add_listener(listener2);
    obs1.add_listener(listener3);
    obs1.change(my_change_function);
}

pub fn change(&mut self, change_fn: fn(&mut Data))

It takes as an argument a function to change the value of the data, and then notifies all listeners. It doesn’t matter if the new data value is different from the previous ones, the listeners will still be notified.

Examples found in repository

examples/event.rs (line 10)

fn main() {
    let a = 1;
    println!("Initial value: {}", a);
    let mut obs1 = Observable::new(a);
    obs1.add_listener(listener1);
    obs1.add_listener(listener2);
    obs1.add_listener(listener3);
    obs1.change(my_change_function);
}

pub fn add_listener(&mut self, listener: fn(&Data))

Examples found in repository

examples/event.rs (line 7)

fn main() {
    let a = 1;
    println!("Initial value: {}", a);
    let mut obs1 = Observable::new(a);
    obs1.add_listener(listener1);
    obs1.add_listener(listener2);
    obs1.add_listener(listener3);
    obs1.change(my_change_function);
}

Trait Implementations

impl<Data: Default> Default for Observable<Data>

fn default() -> Self

Returns the “default value” for a type.

impl<Data> Deref for Observable<Data>

type Target = Data

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.