rx_core_observable_create 0.2.1

create observable for rx_core
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47

# [observable_create](https://github.com/AlexAegis/rx_bevy/tree/master/crates/rx_core_observable_create)

[![crates.io](https://img.shields.io/crates/v/rx_core_observable_create.svg)](https://crates.io/crates/rx_core_observable_create)
[![ci](https://github.com/AlexAegis/rx_bevy/actions/workflows/ci.yml/badge.svg)](https://github.com/AlexAegis/rx_bevy/actions/workflows/ci.yml)
[![codecov](https://codecov.io/github/AlexAegis/rx_bevy/graph/badge.svg?token=hUtTGQaWMn&component=rx_core_observable_create)](https://app.codecov.io/github/AlexAegis/rx_bevy?components%5B0%5D=rx_core_observable_create)
[![license](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/AlexAegis/rx_bevy?tab=MIT-1-ov-file)

The `create_observable` provides a simple way to create custom observables by
defining a producer function that can emit values to subscribers.

The producer function is cloned for each subscribe call to avoid shared state
between individual subscriptions.

## See Also

- [DeferredObservable](https://github.com/AlexAegis/rx_bevy/tree/master/crates/rx_core_observable_deferred) -
  Subscribes to an observable returned by a function.
- [JustObservable](https://github.com/AlexAegis/rx_bevy/tree/master/crates/rx_core_observable_just) -
  Immediately emits a single value!
- [EmptyObservable](https://github.com/AlexAegis/rx_bevy/tree/master/crates/rx_core_observable_empty) -
  Immediately completes!
- [ThrowObservable](https://github.com/AlexAegis/rx_bevy/tree/master/crates/rx_core_observable_throw) -
  Immediately errors!
- [ClosedObservable](https://github.com/AlexAegis/rx_bevy/tree/master/crates/rx_core_observable_closed) -
  Immediately unsubscribes!
- [NeverObservable](https://github.com/AlexAegis/rx_bevy/tree/master/crates/rx_core_observable_just) -
  Never emits, never unsubscribes! Only once dropped!

## Example

```sh
cargo run -p rx_core --example observable_create_example
```

```rs
let _s = create_observable::<&str, Never, _>(|destination| {
    destination.next("hello");
    destination.complete();
})
.subscribe(PrintObserver::new("create_observable"));
```

```text
create_observable - next: "hello"
create_observable - completed
create_observable - unsubscribed
```