UniTask integration

[hadashiA]

Add IAsyncStartable

class FooController : IAsyncStartable
{
    public UniTask StartAsync(CancellationToken cancellation)
    {
        // ...
        await UniTask.Yield(PlayerLoopTiming.Update, cancellation);
        // ...
    }
}

builder.RegisterEntryPoint<FooController>(Lifetime.Scoped);

Why is there only one interface ?

UniTask can switch the execution of the async method at any time.
So I don't think we need a lot of interfaces to choose the timing.

e.g.

await UniTask.Yield(PlayerLoopTiming.LastFixedUpdate); // etc

Is there a way to handle the error?

On the application side, we cannot write try / catch outside of Start()
Usually, we use default unobserved exception behaviour.

Or, we can use:

UniTaskScheduler.UnobservedTaskException += ex => ...

I added the following to do this for each LifetimeScope .

builder.RegisterEntryPointExceptionHandler(ex => ...);

Also use:

builder.UseEntryPoint(Lifetime.Scoped, entryPoints =>
{
    entryPoints.Add<FooController>();
    entryPoints.OnException(ex => ...);
});

How to use CancellationToken ?

TODO

• (docs)
• All test passes

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