AsyncReactiveProperty document

master
neuecc 2020-06-11 23:50:13 +09:00
parent 0b27c3a342
commit a2c18eb343
2 changed files with 28 additions and 3 deletions

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@ -347,7 +347,7 @@ It indicates when to run, you can check [PlayerLoopList.md](https://gist.github.
> UniTask.Yield(without CancellationToken) is a special type, returns `YieldAwaitable` and run on YieldRunner. It is most lightweight and faster.
AsyncOperation is returned from native timing. For example, await `SceneManager.LoadSceneAsync` is returned from `EarlyUpdate.UpdatePreloading` and after called, loaded scene called from `EarlyUpdate.ScriptRunDelayedStartupFrame`. Also `await UnityWebRequest` is returned from `EarlyUpdate.ExecuteMainThreadJobs`.
AsyncOperation is returned from native timing. For example, await `SceneManager.LoadSceneAsync` is returned from `EarlyUpdate.UpdatePreloading` and after called, loaded scene's `Start` called from `EarlyUpdate.ScriptRunDelayedStartupFrame`. Also `await UnityWebRequest` is returned from `EarlyUpdate.ExecuteMainThreadJobs`.
In UniTask, await directly and `WithCancellation` use native timing, `ToUniTask` use specified timing. This is usually not a particular problem, but with `LoadSceneAsync`, causes different order of Start and continuation after await. so recommend not to use `LoadSceneAsync.ToUniTask`.
@ -584,9 +584,30 @@ await this.GetAsyncMoveTrigger().ForEachAsync(axisEventData =>
});
```
`AsyncReactiveProperty`, `AsyncReadOnlyReactiveProperty` is UniTask version of UniTask's ReactiveProperty.
`AsyncReactiveProperty`, `AsyncReadOnlyReactiveProperty` is UniTask version of UniTask's ReactiveProperty. `BindTo` extension method of `IUniTaskAsyncEnumerable<T>` for binding asynchronous stream values to Unity components(Text/Selectable/TMP/Text).
`BindTo` extension method of `IUniTaskAsyncEnumerable<T>` for binding asynchronous stream values to Unity components(Text/Selectable/TMP/Text).
```csharp
var rp = new AsyncReactiveProperty<int>(99);
// AsyncReactiveProperty itself is IUniTaskAsyncEnumerable, you can query by LINQ
rp.ForEachAsync(x =>
{
Debug.Log(x);
}, this.GetCancellationTokenOnDestroy()).Forget();
rp.Value = 10; // push 10 to all subscriber
rp.Value = 11; // push 11 to all subscriber
// WithoutCurrent ignore initial value
// BindTo bind stream value to unity components.
rp.WithoutCurrent().BindTo(this.textComponent);
await rp.WaitAsync(); // wait until next value set
// also exists ToReadOnlyReactiveProperty
var rp2 = new AsyncReactiveProperty<int>(99);
var rorp = rp.CombineLatest(rp2, (x, y) => (x, y)).ToReadOnlyReactiveProperty();
```
A pull-type asynchronous stream does not get the next values until the asynchronous processing in the sequence is complete. This could spill data from push-type events such as buttons.
@ -699,6 +720,7 @@ Use UniTask type.
| `Task`/`ValueTask` | `UniTask` |
| `Task<T>`/`ValueTask<T>` | `UniTask<T>` |
| `async void` | `async UniTaskVoid` |
| `+= async () => { }` | `UniTask.Void`, `UniTask.Action`, `UniTask.UnityAction` |
| --- | `UniTaskCompletionSource` |
| `TaskCompletionSource<T>` | `UniTaskCompletionSource<T>`/`AutoResetUniTaskCompletionSource<T>` |
| `ManualResetValueTaskSourceCore<T>` | `UniTaskCompletionSourceCore<T>` |
@ -708,6 +730,7 @@ Use UniTask type.
| `ValueTask<T>.IsCompleted` | `UniTask<T>.Status.IsCompleted()` |
| `new Progress<T>` | `Progress.Create<T>` |
| `CancellationToken.Register(UnsafeRegister)` | `CancellationToken.RegisterWithoutCaptureExecutionContext` |
| `CancellationTokenSource.CancelAfter` | `CancellationTokenSource.CancelAfterSlim` |
| `Channel.CreateUnbounded<T>(false){ SingleReader = true }` | `Channel.CreateSingleConsumerUnbounded<T>` |
| `IAsyncEnumerable<T>` | `IUniTaskAsyncEnumerable<T>` |
| `IAsyncEnumerator<T>` | `IUniTaskAsyncEnumerator<T>` |

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@ -444,7 +444,9 @@ public class SandboxMain : MonoBehaviour
// rp.AddTo(this.GetCancellationTokenOnDestroy());
var cts = new CancellationTokenSource();