public async Task SkipUntilCanceled()
{
var cts = new CancellationTokenSource();
var rp = new AsyncReactiveProperty <int>(1);
var xs = rp.SkipUntilCanceled(cts.Token).ToArrayAsync();
var c = CancelAsync();
await c;
var foo = await xs;
foo.Should().Equal(new[] { 20, 30, 40 });
async Task CancelAsync()
{
rp.Value = 10;
await Task.Yield();
rp.Value = 20;
await Task.Yield();
cts.Cancel();
rp.Value = 30;
await Task.Yield();
rp.Value = 40;
rp.Dispose(); // complete.
}
}
public async Task CombineLatestOK()
{
var a = new AsyncReactiveProperty <int>(0);
var b = new AsyncReactiveProperty <int>(0);
var list = new List <(int, int)>();
var complete = a.WithoutCurrent().CombineLatest(b.WithoutCurrent(), (x, y) => (x, y)).ForEachAsync(x => list.Add(x));
list.Count.Should().Be(0);
a.Value = 10;
list.Count.Should().Be(0);
a.Value = 20;
list.Count.Should().Be(0);
b.Value = 1;
list.Count.Should().Be(1);
list[0].Should().Be((20, 1));
a.Value = 30;
list.Last().Should().Be((30, 1));
b.Value = 2;
list.Last().Should().Be((30, 2));
a.Dispose();
b.Value = 3;
list.Last().Should().Be((30, 3));
b.Dispose();
await complete;
}
public async Task SkipUntil()
{
var cts = new AsyncReactiveProperty <int>(0);
var rp = new AsyncReactiveProperty <int>(1);
var xs = rp.SkipUntil(cts.WaitAsync()).ToArrayAsync();
var c = CancelAsync();
await c;
var foo = await xs;
foo.Should().BeEquivalentTo(new[] { 20, 30, 40 });
async Task CancelAsync()
{
rp.Value = 10;
await Task.Yield();
rp.Value = 20;
await Task.Yield();
cts.Value = 9999;
rp.Value = 30;
await Task.Yield();
rp.Value = 40;
rp.Dispose(); // complete.
}
}
public async Task Cancel()
{
var rp = new AsyncReactiveProperty <int>(1);
var multicast = rp.Publish();
var a = multicast.ToArrayAsync();
var b = multicast.Take(2).ToArrayAsync();
var disp = multicast.Connect();
rp.Value = 2;
(await b).Should().BeEquivalentTo(1, 2);
var c = multicast.ToArrayAsync();
rp.Value = 3;
disp.Dispose();
rp.Value = 4;
rp.Value = 5;
rp.Dispose();
await Assert.ThrowsAsync <OperationCanceledException>(async() => await a);
await Assert.ThrowsAsync <OperationCanceledException>(async() => await c);
}
public async Task Normal()
{
var rp = new AsyncReactiveProperty <int>(1);
var multicast = rp.Publish();
var a = multicast.ToArrayAsync();
var b = multicast.Take(2).ToArrayAsync();
var disp = multicast.Connect();
rp.Value = 2;
(await b).Should().BeEquivalentTo(1, 2);
var c = multicast.ToArrayAsync();
rp.Value = 3;
rp.Value = 4;
rp.Value = 5;
rp.Dispose();
(await a).Should().BeEquivalentTo(1, 2, 3, 4, 5);
(await c).Should().BeEquivalentTo(3, 4, 5);
disp.Dispose();
}
private void Start()
{
var token = this.GetCancellationTokenOnDestroy();
// AsyncReactiveProperty生成
var asyncReactiveProperty = new AsyncReactiveProperty <string>("Initialize!");
// WithoutCurrent()を挟むと現在値の発行をスキップする
asyncReactiveProperty
.WithoutCurrent()
.ForEachAsync(x => Debug.Log(x), token);
asyncReactiveProperty.Value = "Hello!";
asyncReactiveProperty.Dispose();
}
public async Task CombineLatestLong()
{
var a = UniTaskAsyncEnumerable.Range(1, 100000);
var b = new AsyncReactiveProperty <int>(0);
var list = new List <(int, int)>();
var complete = a.CombineLatest(b.WithoutCurrent(), (x, y) => (x, y)).ForEachAsync(x => list.Add(x));
b.Value = 1;
list[0].Should().Be((100000, 1));
b.Dispose();
await complete;
}
private void Start()
{
var token = this.GetCancellationTokenOnDestroy();
// AsyncReactiveProperty生成
var asyncReactiveProperty = new AsyncReactiveProperty <string>("Initialize!");
// 待受開始
WaitForAsync(asyncReactiveProperty, token).Forget();
// 値を設定
asyncReactiveProperty.Value = "Hello!";
asyncReactiveProperty.Value = "World!";
asyncReactiveProperty.Value = "Thank you!";
asyncReactiveProperty.Dispose();
}
// 時間を空けて書き込み
private async UniTaskVoid WriteAsync(
AsyncReactiveProperty <int> asyncReactiveProperty)
{
// 値を設定
asyncReactiveProperty.Value = 1;
await UniTask.Yield();
asyncReactiveProperty.Value = 2;
await UniTask.Yield();
asyncReactiveProperty.Value = 3;
await UniTask.Yield();
asyncReactiveProperty.Value = -1;
await UniTask.Yield();
// Dispose()するとこのAsyncReactivePropertyへの
// すべてのawaitをキャンセルできる
asyncReactiveProperty.Dispose();
}
public async Task Pariwise()
{
var a = new AsyncReactiveProperty <int>(0);
var list = new List <(int, int)>();
var complete = a.WithoutCurrent().Pairwise().ForEachAsync(x => list.Add(x));
list.Count.Should().Be(0);
a.Value = 10;
list.Count.Should().Be(0);
a.Value = 20;
list.Count.Should().Be(1);
a.Value = 30;
a.Value = 40;
a.Value = 50;
a.Dispose();
await complete;
list.Should().Equal((10, 20), (20, 30), (30, 40), (40, 50));
}