2.0.10-rc7

src/UniTask.NetCoreSandbox/Program.cs

@@ -93,10 +93,16 @@ namespace NetCoreSandbox
 
             var channel = Channel.CreateSingleConsumerUnbounded<int>();
 
+            // Observable.Range(1,10).CombineLatest(
+
+            var cts = new CancellationTokenSource();
+
+            var token = cts.Token;
+
+            FooAsync(token).ForEachAsync(x => { }, token);
 
 
-
-
+            // Observable.Range(1,10).CombineLatest(
 
         }
 

src/UniTask.NetCoreTests/AsyncReactivePropertyTest.cs

@@ -52,44 +52,44 @@ namespace NetCoreTests
             ar.Should().BeEquivalentTo(new[] { 100, 100, 100, 131, 191 });
         }
 
-        [Fact]
-        public async Task StateIteration()
-        {
-            var rp = new State<int>(99);
-            var setter = rp.GetSetter();
+        //[Fact]
+        //public async Task StateIteration()
+        //{
+        //    var rp = new ReadOnlyAsyncReactiveProperty<int>(99);
+        //    var setter = rp.GetSetter();
 
-            var f = await rp.FirstAsync();
-            f.Should().Be(99);
+        //    var f = await rp.FirstAsync();
+        //    f.Should().Be(99);
 
-            var array = rp.Take(5).ToArrayAsync();
+        //    var array = rp.Take(5).ToArrayAsync();
 
-            setter(100);
-            setter(100);
-            setter(100);
-            setter(131);
+        //    setter(100);
+        //    setter(100);
+        //    setter(100);
+        //    setter(131);
 
-            var ar = await array;
+        //    var ar = await array;
 
-            ar.Should().BeEquivalentTo(new[] { 99, 100, 100, 100, 131 });
-        }
+        //    ar.Should().BeEquivalentTo(new[] { 99, 100, 100, 100, 131 });
+        //}
 
-        [Fact]
-        public async Task StateWithoutCurrent()
-        {
-            var rp = new State<int>(99);
-            var setter = rp.GetSetter();
+        //[Fact]
+        //public async Task StateWithoutCurrent()
+        //{
+        //    var rp = new ReadOnlyAsyncReactiveProperty<int>(99);
+        //    var setter = rp.GetSetter();
 
-            var array = rp.WithoutCurrent().Take(5).ToArrayAsync();
-            setter(100);
-            setter(100);
-            setter(100);
-            setter(131);
-            setter(191);
+        //    var array = rp.WithoutCurrent().Take(5).ToArrayAsync();
+        //    setter(100);
+        //    setter(100);
+        //    setter(100);
+        //    setter(131);
+        //    setter(191);
 
-            var ar = await array;
+        //    var ar = await array;
 
-            ar.Should().BeEquivalentTo(new[] { 100, 100, 100, 131, 191 });
-        }
+        //    ar.Should().BeEquivalentTo(new[] { 100, 100, 100, 131, 191 });
+        //}
 
 
 
@@ -98,7 +98,7 @@ namespace NetCoreTests
         {
             var rp = new AsyncReactiveProperty<int>(10);
 
-            var state = rp.ToState(CancellationToken.None);
+            var state = rp.ToReadOnlyAsyncReactiveProperty(CancellationToken.None);
 
             rp.Value = 10;
             state.Value.Should().Be(10);

src/UniTask.NetCoreTests/Linq/Projection.cs

@@ -319,5 +319,119 @@ namespace NetCoreTests.Linq
                 await Assert.ThrowsAsync<UniTaskTestException>(async () => await ys);
             }
         }
+
+        [Fact]
+        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;
+        }
+
+        [Fact]
+        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;
+        }
+
+        [Fact]
+        public async Task CombineLatestError()
+        {
+            var a = new AsyncReactiveProperty<int>(0);
+            var b = new AsyncReactiveProperty<int>(0);
+
+            var list = new List<(int, int)>();
+            var complete = a.WithoutCurrent()
+                .Select(x => { if (x == 0) { throw new MyException(); } return x; })
+                .CombineLatest(b.WithoutCurrent(), (x, y) => (x, y)).ForEachAsync(x => list.Add(x));
+
+
+            a.Value = 10;
+            b.Value = 1;
+            list.Last().Should().Be((10, 1));
+
+            a.Value = 0;
+
+            await Assert.ThrowsAsync<MyException>(async () => await complete);
+        }
+
+
+
+        [Fact]
+        public async Task PariwiseImmediate()
+        {
+            var xs = await UniTaskAsyncEnumerable.Range(1, 5).Pairwise().ToArrayAsync();
+            xs.Should().BeEquivalentTo((1, 2), (2, 3), (3, 4), (4, 5));
+        }
+
+        [Fact]
+        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().BeEquivalentTo((10, 20), (20, 30), (30, 40), (40, 50));
+        }
+
+        class MyException : Exception
+        {
+
+        }
     }
 }

src/UniTask/Assets/Plugins/UniTask/Runtime/AsyncReactiveProperty.cs

@@ -175,13 +175,11 @@ namespace Cysharp.Threading.Tasks
         }
     }
 
-    public class State<T> : IReadOnlyAsyncReactiveProperty<T>, IDisposable
+    public class ReadOnlyAsyncReactiveProperty<T> : IReadOnlyAsyncReactiveProperty<T>, IDisposable
     {
         TriggerEvent<T> triggerEvent;
 
         T latestValue;
-
-        Action<T> setter;
         IUniTaskAsyncEnumerator<T> enumerator;
 
         public T Value
@@ -192,19 +190,13 @@ namespace Cysharp.Threading.Tasks
             }
         }
 
-        public State(T value)
-        {
-            this.latestValue = value;
-            this.triggerEvent = default;
-        }
-
-        public State(T initialValue, IUniTaskAsyncEnumerable<T> source, CancellationToken cancellationToken)
+        public ReadOnlyAsyncReactiveProperty(T initialValue, IUniTaskAsyncEnumerable<T> source, CancellationToken cancellationToken)
         {
             latestValue = initialValue;
             ConsumeEnumerator(source, cancellationToken).Forget();
         }
 
-        public State(IUniTaskAsyncEnumerable<T> source, CancellationToken cancellationToken)
+        public ReadOnlyAsyncReactiveProperty(IUniTaskAsyncEnumerable<T> source, CancellationToken cancellationToken)
         {
             ConsumeEnumerator(source, cancellationToken).Forget();
         }
@@ -216,7 +208,9 @@ namespace Cysharp.Threading.Tasks
             {
                 while (await enumerator.MoveNextAsync())
                 {
-                    SetValue(enumerator.Current);
+                    var value = enumerator.Current;
+                    this.latestValue = value;
+                    triggerEvent.SetResult(value);
                 }
             }
             finally
@@ -226,28 +220,6 @@ namespace Cysharp.Threading.Tasks
             }
         }
 
-        public Action<T> GetSetter()
-        {
-            if (enumerator != null)
-            {
-                throw new InvalidOperationException("Can not get setter when create from IUniTaskAsyncEnumerable source.");
-            }
-
-            if (setter != null)
-            {
-                throw new InvalidOperationException("GetSetter can only call once.");
-            }
-
-            setter = SetValue;
-            return setter;
-        }
-
-        void SetValue(T value)
-        {
-            this.latestValue = value;
-            triggerEvent.SetResult(value);
-        }
-
         public IUniTaskAsyncEnumerable<T> WithoutCurrent()
         {
             return new WithoutCurrentEnumerable(this);
@@ -268,12 +240,7 @@ namespace Cysharp.Threading.Tasks
             triggerEvent.SetCompleted();
         }
 
-        public static implicit operator State<T>(T value)
-        {
-            return new State<T>(value);
-        }
-
-        public static implicit operator T(State<T> value)
+        public static implicit operator T(ReadOnlyAsyncReactiveProperty<T> value)
         {
             return value.Value;
         }
@@ -286,16 +253,16 @@ namespace Cysharp.Threading.Tasks
 
         static bool isValueType;
 
-        static State()
+        static ReadOnlyAsyncReactiveProperty()
         {
             isValueType = typeof(T).IsValueType;
         }
 
         class WithoutCurrentEnumerable : IUniTaskAsyncEnumerable<T>
         {
-            readonly State<T> parent;
+            readonly ReadOnlyAsyncReactiveProperty<T> parent;
 
-            public WithoutCurrentEnumerable(State<T> parent)
+            public WithoutCurrentEnumerable(ReadOnlyAsyncReactiveProperty<T> parent)
             {
                 this.parent = parent;
             }
@@ -310,14 +277,14 @@ namespace Cysharp.Threading.Tasks
         {
             static Action<object> cancellationCallback = CancellationCallback;
 
-            readonly State<T> parent;
+            readonly ReadOnlyAsyncReactiveProperty<T> parent;
             readonly CancellationToken cancellationToken;
             readonly CancellationTokenRegistration cancellationTokenRegistration;
             T value;
             bool isDisposed;
             bool firstCall;
 
-            public Enumerator(State<T> parent, CancellationToken cancellationToken, bool publishCurrentValue)
+            public Enumerator(ReadOnlyAsyncReactiveProperty<T> parent, CancellationToken cancellationToken, bool publishCurrentValue)
             {
                 this.parent = parent;
                 this.cancellationToken = cancellationToken;
@@ -391,14 +358,14 @@ namespace Cysharp.Threading.Tasks
 
     public static class StateExtensions
     {
-        public static State<T> ToState<T>(this IUniTaskAsyncEnumerable<T> source, CancellationToken cancellationToken)
+        public static ReadOnlyAsyncReactiveProperty<T> ToReadOnlyAsyncReactiveProperty<T>(this IUniTaskAsyncEnumerable<T> source, CancellationToken cancellationToken)
         {
-            return new State<T>(source, cancellationToken);
+            return new ReadOnlyAsyncReactiveProperty<T>(source, cancellationToken);
         }
 
-        public static State<T> ToState<T>(this IUniTaskAsyncEnumerable<T> source, T initialValue, CancellationToken cancellationToken)
+        public static ReadOnlyAsyncReactiveProperty<T> ToReadOnlyAsyncReactiveProperty<T>(this IUniTaskAsyncEnumerable<T> source, T initialValue, CancellationToken cancellationToken)
         {
-            return new State<T>(initialValue, source, cancellationToken);
+            return new ReadOnlyAsyncReactiveProperty<T>(initialValue, source, cancellationToken);
         }
     }
 }

src/UniTask/Assets/Plugins/UniTask/Runtime/EnumeratorAsyncExtensions.cs

@@ -14,16 +14,19 @@ namespace Cysharp.Threading.Tasks
     {
         public static UniTask.Awaiter GetAwaiter(this IEnumerator enumerator)
         {
+            Error.ThrowArgumentNullException(enumerator, nameof(enumerator));
             return new UniTask(EnumeratorPromise.Create(enumerator, PlayerLoopTiming.Update, CancellationToken.None, out var token), token).GetAwaiter();
         }
 
-        public static UniTask ToUniTask(this IEnumerator enumerator)
+        public static UniTask WithCancellation(this IEnumerator enumerator, CancellationToken cancellationToken)
         {
-            return new UniTask(EnumeratorPromise.Create(enumerator, PlayerLoopTiming.Update, CancellationToken.None, out var token), token);
+            Error.ThrowArgumentNullException(enumerator, nameof(enumerator));
+            return new UniTask(EnumeratorPromise.Create(enumerator, PlayerLoopTiming.Update, cancellationToken, out var token), token);
         }
 
-        public static UniTask ConfigureAwait(this IEnumerator enumerator, PlayerLoopTiming timing = PlayerLoopTiming.Update, CancellationToken cancellationToken = default(CancellationToken))
+        public static UniTask ToUniTask(this IEnumerator enumerator, PlayerLoopTiming timing = PlayerLoopTiming.Update, CancellationToken cancellationToken = default(CancellationToken))
         {
+            Error.ThrowArgumentNullException(enumerator, nameof(enumerator));
             return new UniTask(EnumeratorPromise.Create(enumerator, timing, cancellationToken, out var token), token);
         }
 

src/UniTask/Assets/Plugins/UniTask/Runtime/External/AddressableAsyncExtensions.cs

@@ -13,21 +13,23 @@ namespace Cysharp.Threading.Tasks
 {
     public static class AddressableAsyncExtensions
     {
-#region AsyncOperationHandle
+        #region AsyncOperationHandle
 
         public static AsyncOperationHandleAwaiter GetAwaiter(this AsyncOperationHandle handle)
         {
             return new AsyncOperationHandleAwaiter(handle);
         }
 
-        public static UniTask ToUniTask(this AsyncOperationHandle handle)
+        public static UniTask WithCancellation(this AsyncOperationHandle handle, CancellationToken cancellationToken)
         {
-            return new UniTask(AsyncOperationHandleConfiguredSource.Create(handle, PlayerLoopTiming.Update, null, CancellationToken.None, out var token), token);
+            if (handle.IsDone) return UniTask.CompletedTask;
+            return new UniTask(AsyncOperationHandleConfiguredSource.Create(handle, PlayerLoopTiming.Update, null, cancellationToken, out var token), token);
         }
 
-        public static UniTask ConfigureAwait(this AsyncOperationHandle handle, IProgress<float> progress = null, PlayerLoopTiming timing = PlayerLoopTiming.Update, CancellationToken cancellation = default(CancellationToken))
+        public static UniTask ToUniTask(this AsyncOperationHandle handle, IProgress<float> progress = null, PlayerLoopTiming timing = PlayerLoopTiming.Update, CancellationToken cancellationToken = default(CancellationToken))
         {
-            return new UniTask(AsyncOperationHandleConfiguredSource.Create(handle, timing, progress, cancellation, out var token), token);
+            if (handle.IsDone) return UniTask.CompletedTask;
+            return new UniTask(AsyncOperationHandleConfiguredSource.Create(handle, timing, progress, cancellationToken, out var token), token);
         }
 
         public struct AsyncOperationHandleAwaiter : ICriticalNotifyCompletion
@@ -75,7 +77,7 @@ namespace Cysharp.Threading.Tasks
             }
         }
 
-        class AsyncOperationHandleConfiguredSource : IUniTaskSource, IPlayerLoopItem, IPromisePoolItem
+        sealed class AsyncOperationHandleConfiguredSource : IUniTaskSource, IPlayerLoopItem, IPromisePoolItem
         {
             static readonly PromisePool<AsyncOperationHandleConfiguredSource> pool = new PromisePool<AsyncOperationHandleConfiguredSource>();
 
@@ -185,22 +187,24 @@ namespace Cysharp.Threading.Tasks
             }
         }
 
-#endregion
+        #endregion
 
-#region AsyncOperationHandle_T
+        #region AsyncOperationHandle_T
 
         public static AsyncOperationHandleAwaiter<T> GetAwaiter<T>(this AsyncOperationHandle<T> handle)
         {
             return new AsyncOperationHandleAwaiter<T>(handle);
         }
 
-        public static UniTask<T> ToUniTask<T>(this AsyncOperationHandle<T> handle)
+        public static UniTask<T> WithCancellation<T>(this AsyncOperationHandle<T> handle, CancellationToken cancellationToken)
         {
-            return new UniTask<T>(AsyncOperationHandleConfiguredSource<T>.Create(handle, PlayerLoopTiming.Update, null, CancellationToken.None, out var token), token);
+            if (handle.IsDone) return UniTask.FromResult(handle.Result);
+            return new UniTask<T>(AsyncOperationHandleConfiguredSource<T>.Create(handle, PlayerLoopTiming.Update, null, cancellationToken, out var token), token);
         }
 
-        public static UniTask<T> ConfigureAwait<T>(this AsyncOperationHandle<T> handle, IProgress<float> progress = null, PlayerLoopTiming timing = PlayerLoopTiming.Update, CancellationToken cancellation = default(CancellationToken))
+        public static UniTask<T> ToUniTask<T>(this AsyncOperationHandle<T> handle, IProgress<float> progress = null, PlayerLoopTiming timing = PlayerLoopTiming.Update, CancellationToken cancellation = default(CancellationToken))
         {
+            if (handle.IsDone) return UniTask.FromResult(handle.Result);
             return new UniTask<T>(AsyncOperationHandleConfiguredSource<T>.Create(handle, timing, progress, cancellation, out var token), token);
         }
 
@@ -250,7 +254,7 @@ namespace Cysharp.Threading.Tasks
             }
         }
 
-        class AsyncOperationHandleConfiguredSource<T> : IUniTaskSource<T>, IPlayerLoopItem, IPromisePoolItem
+        sealed class AsyncOperationHandleConfiguredSource<T> : IUniTaskSource<T>, IPlayerLoopItem, IPromisePoolItem
         {
             static readonly PromisePool<AsyncOperationHandleConfiguredSource<T>> pool = new PromisePool<AsyncOperationHandleConfiguredSource<T>>();
 
@@ -366,7 +370,7 @@ namespace Cysharp.Threading.Tasks
             }
         }
 
-#endregion
+        #endregion
     }
 }
 

src/UniTask/Assets/Plugins/UniTask/Runtime/External/DoTweenAsyncExtensions.cs

@@ -0,0 +1,245 @@
+// asmdef Version Defines, enabled when com.demigiant.dotween is imported.
+
+#if UNITASK_DOTWEEN_SUPPORT
+
+using Cysharp.Threading.Tasks.Internal;
+using DG.Tweening;
+using System;
+using System.Runtime.CompilerServices;
+using System.Threading;
+
+namespace Cysharp.Threading.Tasks
+{
+    // The idea of TweenCancelBehaviour is borrowed from https://www.shibuya24.info/entry/dotween_async_await
+    public enum TweenCancelBehaviour
+    {
+        Kill,
+        KillWithCompleteCallback,
+        Complete,
+        CompleteWithSeqeunceCallback,
+        CancelAwait,
+
+        // AndCancelAwait
+        KillAndCancelAwait,
+        KillWithCompleteCallbackAndCancelAwait,
+        CompleteAndCancelAwait,
+        CompleteWithSeqeunceCallbackAndCancelAwait
+    }
+
+    public static class DOTweenAsyncExtensions
+    {
+        public static TweenAwaiter GetAwaiter(this Tween tween)
+        {
+            return new TweenAwaiter(tween);
+        }
+
+        public static UniTask WithCancellation(this Tween tween, CancellationToken cancellationToken = default)
+        {
+            Error.ThrowArgumentNullException(tween, nameof(tween));
+
+            if (!tween.IsActive()) return UniTask.CompletedTask;
+            return new UniTask(TweenConfiguredSource.Create(tween, TweenCancelBehaviour.Kill, cancellationToken, out var token), token);
+        }
+
+        public static UniTask ToUniTask(this Tween tween, TweenCancelBehaviour tweenCancelBehaviour = TweenCancelBehaviour.Kill, CancellationToken cancellationToken = default)
+        {
+            Error.ThrowArgumentNullException(tween, nameof(tween));
+
+            if (!tween.IsActive()) return UniTask.CompletedTask;
+            return new UniTask(TweenConfiguredSource.Create(tween, tweenCancelBehaviour, cancellationToken, out var token), token);
+        }
+
+        public struct TweenAwaiter : ICriticalNotifyCompletion
+        {
+            readonly Tween tween;
+
+            // killed(non active) as completed.
+            public bool IsCompleted => !tween.IsActive();
+
+            public TweenAwaiter(Tween tween)
+            {
+                this.tween = tween;
+            }
+
+            public TweenAwaiter GetAwaiter()
+            {
+                return this;
+            }
+
+            public void GetResult()
+            {
+            }
+
+            public void OnCompleted(System.Action continuation)
+            {
+                UnsafeOnCompleted(continuation);
+            }
+
+            public void UnsafeOnCompleted(System.Action continuation)
+            {
+                // convert Action -> TweenCallback allocation.
+                // onKill is called after OnCompleted, both Complete(false/true) and Kill(false/true).
+                tween.onKill = new TweenCallback(continuation);
+            }
+        }
+
+        sealed class TweenConfiguredSource : IUniTaskSource, IPromisePoolItem
+        {
+            static readonly PromisePool<TweenConfiguredSource> pool = new PromisePool<TweenConfiguredSource>();
+            static Action<object> CancellationCallbackDelegate = CancellationCallback;
+
+            Tween tween;
+            TweenCancelBehaviour cancelBehaviour;
+            CancellationToken cancellationToken;
+            bool canceled;
+
+            CancellationTokenRegistration cancellationTokenRegistration;
+            UniTaskCompletionSourceCore<AsyncUnit> core;
+
+            TweenConfiguredSource()
+            {
+
+            }
+
+            public static IUniTaskSource Create(Tween tween, TweenCancelBehaviour cancelBehaviour, CancellationToken cancellationToken, out short token)
+            {
+                if (cancellationToken.IsCancellationRequested)
+                {
+                    return AutoResetUniTaskCompletionSource.CreateFromCanceled(cancellationToken, out token);
+                }
+
+                var result = pool.TryRent() ?? new TweenConfiguredSource();
+
+                result.tween = tween;
+                result.cancelBehaviour = cancelBehaviour;
+                result.cancellationToken = cancellationToken;
+
+                TaskTracker.TrackActiveTask(result, 3);
+
+                result.RegisterEvent();
+
+                token = result.core.Version;
+                return result;
+            }
+
+            void RegisterEvent()
+            {
+                if (cancellationToken.CanBeCanceled)
+                {
+                    cancellationTokenRegistration = cancellationToken.RegisterWithoutCaptureExecutionContext(CancellationCallbackDelegate, this);
+                }
+
+                // allocate delegate.
+                tween.OnKill(new TweenCallback(OnKill));
+            }
+
+            void OnKill()
+            {
+                cancellationTokenRegistration.Dispose();
+                if (canceled)
+                {
+                    if (cancelBehaviour == TweenCancelBehaviour.CancelAwait)
+                    {
+                        // already called TrySetCanceled, do nothing.
+                    }
+                    else
+                    {
+                        core.TrySetCanceled(cancellationToken);
+                    }
+                }
+                else
+                {
+                    core.TrySetResult(AsyncUnit.Default);
+                }
+            }
+
+            static void CancellationCallback(object state)
+            {
+                var self = (TweenConfiguredSource)state;
+
+                switch (self.cancelBehaviour)
+                {
+                    case TweenCancelBehaviour.Kill:
+                    default:
+                        self.tween.Kill(false);
+                        break;
+                    case TweenCancelBehaviour.KillAndCancelAwait:
+                        self.canceled = true;
+                        self.tween.Kill(false);
+                        break;
+                    case TweenCancelBehaviour.KillWithCompleteCallback:
+                        self.tween.Kill(true);
+                        break;
+                    case TweenCancelBehaviour.KillWithCompleteCallbackAndCancelAwait:
+                        self.canceled = true;
+                        self.tween.Kill(true);
+                        break;
+                    case TweenCancelBehaviour.Complete:
+                        self.tween.Complete(false);
+                        break;
+                    case TweenCancelBehaviour.CompleteAndCancelAwait:
+                        self.canceled = true;
+                        self.tween.Complete(false);
+                        break;
+                    case TweenCancelBehaviour.CompleteWithSeqeunceCallback:
+                        self.tween.Complete(true);
+                        break;
+                    case TweenCancelBehaviour.CompleteWithSeqeunceCallbackAndCancelAwait:
+                        self.canceled = true;
+                        self.tween.Complete(true);
+                        break;
+                    case TweenCancelBehaviour.CancelAwait:
+                        self.canceled = true;
+                        self.core.TrySetCanceled(self.cancellationToken);
+                        break;
+                }
+            }
+
+            public void GetResult(short token)
+            {
+                try
+                {
+                    TaskTracker.RemoveTracking(this);
+                    core.GetResult(token);
+                }
+                finally
+                {
+                    pool.TryReturn(this);
+                }
+            }
+
+
+            public UniTaskStatus GetStatus(short token)
+            {
+                return core.GetStatus(token);
+            }
+
+            public UniTaskStatus UnsafeGetStatus()
+            {
+                return core.UnsafeGetStatus();
+            }
+
+            public void OnCompleted(Action<object> continuation, object state, short token)
+            {
+                core.OnCompleted(continuation, state, token);
+            }
+
+            public void Reset()
+            {
+                core.Reset();
+                tween = default;
+                cancellationToken = default;
+            }
+
+            ~TweenConfiguredSource()
+            {
+                if (pool.TryReturn(this))
+                {
+                    GC.ReRegisterForFinalize(this);
+                }
+            }
+        }
+    }
+}
+
+#endif

src/UniTask/Assets/Plugins/UniTask/Runtime/External/DoTweenAsyncExtensions.cs.meta

@@ -0,0 +1,11 @@
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+MonoImporter:
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+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
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+  assetBundleName: 
+  assetBundleVariant: 

src/UniTask/Assets/Plugins/UniTask/Runtime/Linq/CombineLatest.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 6cb07f6e88287e34d9b9301a572284a5
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

src/UniTask/Assets/Plugins/UniTask/Runtime/Linq/CombineLatest.tt

@@ -0,0 +1,221 @@
+<#@ template debug="false" hostspecific="false" language="C#" #>
+<#@ assembly name="System.Core" #>
+<#@ import namespace="System.Linq" #>
+<#@ import namespace="System.Text" #>
+<#@ import namespace="System.Collections.Generic" #>
+<#@ output extension=".cs" #>
+<#
+    var tMax = 15;
+    Func<int, string> typeArgs = x => string.Join(", ", Enumerable.Range(1, x).Select(x => $"T{x}")) + ", TResult";
+    Func<int, string> paramArgs = x => string.Join(", ", Enumerable.Range(1, x).Select(x => $"IUniTaskAsyncEnumerable<T{x}> source{x}"));
+    Func<int, string> parameters = x => string.Join(", ", Enumerable.Range(1, x).Select(x => $"source{x}"));
+
+
+#>
+using Cysharp.Threading.Tasks.Internal;
+using System;
+using System.Threading;
+
+namespace Cysharp.Threading.Tasks.Linq
+{
+    public static partial class UniTaskAsyncEnumerable
+    {
+<# for(var i = 2; i <= tMax; i++) { #>
+        public static IUniTaskAsyncEnumerable<TResult> CombineLatest<<#= typeArgs(i) #>>(this <#= paramArgs(i) #>, Func<<#= typeArgs(i) #>> resultSelector)
+        {
+<# for(var j = 1; j <= i; j++) { #>
+            Error.ThrowArgumentNullException(source<#= j #>, nameof(source<#= j #>));
+<# } #>
+            Error.ThrowArgumentNullException(resultSelector, nameof(resultSelector));
+
+            return new CombineLatest<<#= typeArgs(i) #>>(<#= parameters(i) #>, resultSelector);
+        }
+
+<# } #>
+    }
+
+<# for(var i = 2; i <= tMax; i++) { #>
+    internal class CombineLatest<<#= typeArgs(i) #>> : IUniTaskAsyncEnumerable<TResult>
+    {
+<# for(var j = 1; j <= i; j++) { #>
+        readonly IUniTaskAsyncEnumerable<T<#= j #>> source<#= j #>;
+<# } #>        
+        readonly Func<<#= typeArgs(i) #>> resultSelector;
+
+        public CombineLatest(<#= paramArgs(i) #>, Func<<#= typeArgs(i) #>> resultSelector)
+        {
+<# for(var j = 1; j <= i; j++) { #>
+            this.source<#= j #> = source<#= j #>;
+<# } #>        
+            this.resultSelector = resultSelector;
+        }
+
+        public IUniTaskAsyncEnumerator<TResult> GetAsyncEnumerator(CancellationToken cancellationToken = default)
+        {
+            return new _CombineLatest(<#= parameters(i) #>, resultSelector, cancellationToken);
+        }
+
+        class _CombineLatest : MoveNextSource, IUniTaskAsyncEnumerator<TResult>
+        {
+<# for(var j = 1; j <= i; j++) { #>
+            static readonly Action<object> Completed<#= j #>Delegate = Completed<#= j #>;
+<# } #>
+            const int CompleteCount = <#= i #>;
+
+<# for(var j = 1; j <= i; j++) { #>
+            readonly IUniTaskAsyncEnumerable<T<#= j #>> source<#= j #>;
+<# } #>       
+            readonly Func<<#= typeArgs(i) #>> resultSelector;
+            CancellationToken cancellationToken;
+
+<# for(var j = 1; j <= i; j++) { #>
+            IUniTaskAsyncEnumerator<T<#= j #>> enumerator<#= j #>;
+            UniTask<bool>.Awaiter awaiter<#= j #>;
+            bool hasCurrent<#= j #>;
+            bool running<#= j #>;
+            T<#= j #> current<#= j #>;
+
+<# } #>
+            int completedCount;
+            bool syncRunning;
+            TResult result;
+
+            public _CombineLatest(<#= paramArgs(i) #>, Func<<#= typeArgs(i) #>> resultSelector, CancellationToken cancellationToken)
+            {
+<# for(var j = 1; j <= i; j++) { #>
+                this.source<#= j #> = source<#= j #>;
+<# } #>                
+                this.resultSelector = resultSelector;
+                this.cancellationToken = cancellationToken;
+                TaskTracker.TrackActiveTask(this, 3);
+            }
+
+            public TResult Current => result;
+
+            public UniTask<bool> MoveNextAsync()
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+                if (completedCount == CompleteCount) return CompletedTasks.False;
+
+                if (enumerator1 == null)
+                {
+<# for(var j = 1; j <= i; j++) { #>
+                    enumerator<#= j #> = source<#= j #>.GetAsyncEnumerator(cancellationToken);
+<# } #>
+                }
+
+                completionSource.Reset();
+
+                AGAIN:
+                syncRunning = true;
+<# for(var j = 1; j <= i; j++) { #>
+                if (!running<#= j #>)
+                {
+                    running<#= j #> = true;
+                    awaiter<#= j #> = enumerator<#= j #>.MoveNextAsync().GetAwaiter();
+                    if (awaiter<#= j #>.IsCompleted)
+                    {
+                        Completed<#= j #>(this);
+                    }
+                    else
+                    {
+                        awaiter<#= j #>.SourceOnCompleted(Completed<#= j #>Delegate, this);
+                    }
+                }
+<# } #>
+
+                if (<#= string.Join(" || ", Enumerable.Range(1, i).Select(x => $"!running{x}")) #>)
+                {
+                    goto AGAIN;
+                }
+                syncRunning = false;
+
+                return new UniTask<bool>(this, completionSource.Version);
+            }
+
+<# for(var j = 1; j <= i; j++) { #>
+            static void Completed<#= j #>(object state)
+            {
+                var self = (_CombineLatest)state;
+                self.running<#= j #> = false;
+
+                try
+                {
+                    if (self.awaiter<#= j #>.GetResult())
+                    {
+                        self.hasCurrent<#= j #> = true;
+                        self.current<#= j #> = self.enumerator<#= j #>.Current;
+                        goto SUCCESS;
+                    }
+                    else
+                    {
+                        self.running<#= j #> = true; // as complete, no more call MoveNextAsync.
+                        if (Interlocked.Increment(ref self.completedCount) == CompleteCount)
+                        {
+                            goto COMPLETE;
+                        }
+                        return;
+                    }
+                }
+                catch (Exception ex)
+                {
+                    self.running<#= j #> = true; // as complete, no more call MoveNextAsync.
+                    self.completedCount = CompleteCount;
+                    self.completionSource.TrySetException(ex);
+                    return;
+                }
+
+                SUCCESS:
+                if (!self.TrySetResult())
+                {
+                    if (self.syncRunning) return;
+                    self.running<#= j #> = true; // as complete, no more call MoveNextAsync.
+                    try
+                    {
+                        self.awaiter<#= j #> = self.enumerator<#= j #>.MoveNextAsync().GetAwaiter();
+                    }
+                    catch (Exception ex)
+                    {
+                        self.completedCount = CompleteCount;
+                        self.completionSource.TrySetException(ex);
+                        return;
+                    }
+
+                    self.awaiter<#= j #>.SourceOnCompleted(Completed<#= j #>Delegate, self);
+                }
+                return;
+                COMPLETE:
+                self.completionSource.TrySetResult(false);
+                return;
+            }
+
+<# } #>
+            bool TrySetResult()
+            {
+                if (<#= string.Join(" && ", Enumerable.Range(1, i).Select(x => $"hasCurrent{x}")) #>)
+                {
+                    result = resultSelector(<#= string.Join(", ", Enumerable.Range(1, i).Select(x => $"current{x}")) #>);
+                    completionSource.TrySetResult(true);
+                    return true;
+                }
+                else
+                {
+                    return false;
+                }
+            }
+
+            public async UniTask DisposeAsync()
+            {
+                TaskTracker.RemoveTracking(this);
+<# for(var j = 1; j <= i; j++) { #>
+                if (enumerator<#= j #> != null)
+                {
+                    await enumerator<#= j #>.DisposeAsync();
+                }
+<# } #>
+            }
+        }
+    }
+
+<# } #>
+}

src/UniTask/Assets/Plugins/UniTask/Runtime/Linq/CombineLatest.tt.meta

@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: b1b8cfa9d17af814a971ee2224aaaaa2
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

src/UniTask/Assets/Plugins/UniTask/Runtime/Linq/Pairwise.cs

@@ -0,0 +1,128 @@
+using Cysharp.Threading.Tasks.Internal;
+using System;
+using System.Threading;
+
+namespace Cysharp.Threading.Tasks.Linq
+{
+    public static partial class UniTaskAsyncEnumerable
+    {
+        public static IUniTaskAsyncEnumerable<(TSource, TSource)> Pairwise<TSource>(this IUniTaskAsyncEnumerable<TSource> source)
+        {
+            Error.ThrowArgumentNullException(source, nameof(source));
+
+            return new Pairwise<TSource>(source);
+        }
+    }
+
+    internal sealed class Pairwise<TSource> : IUniTaskAsyncEnumerable<(TSource, TSource)>
+    {
+        readonly IUniTaskAsyncEnumerable<TSource> source;
+
+        public Pairwise(IUniTaskAsyncEnumerable<TSource> source)
+        {
+            this.source = source;
+        }
+
+        public IUniTaskAsyncEnumerator<(TSource, TSource)> GetAsyncEnumerator(CancellationToken cancellationToken = default)
+        {
+            return new _Pairwise(source, cancellationToken);
+        }
+
+        sealed class _Pairwise : MoveNextSource, IUniTaskAsyncEnumerator<(TSource, TSource)>
+        {
+            static readonly Action<object> MoveNextCoreDelegate = MoveNextCore;
+
+            readonly IUniTaskAsyncEnumerable<TSource> source;
+            CancellationToken cancellationToken;
+
+            IUniTaskAsyncEnumerator<TSource> enumerator;
+            UniTask<bool>.Awaiter awaiter;
+
+            TSource prev;
+            bool isFirst;
+
+            public _Pairwise(IUniTaskAsyncEnumerable<TSource> source, CancellationToken cancellationToken)
+            {
+                this.source = source;
+                this.cancellationToken = cancellationToken;
+                TaskTracker.TrackActiveTask(this, 3);
+            }
+
+            public (TSource, TSource) Current { get; private set; }
+
+            public UniTask<bool> MoveNextAsync()
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+
+                if (enumerator == null)
+                {
+                    isFirst = true;
+                    enumerator = source.GetAsyncEnumerator(cancellationToken);
+                }
+
+                completionSource.Reset();
+                SourceMoveNext();
+                return new UniTask<bool>(this, completionSource.Version);
+            }
+
+            void SourceMoveNext()
+            {
+                try
+                {
+                    awaiter = enumerator.MoveNextAsync().GetAwaiter();
+                    if (awaiter.IsCompleted)
+                    {
+                        MoveNextCore(this);
+                    }
+                    else
+                    {
+                        awaiter.SourceOnCompleted(MoveNextCoreDelegate, this);
+                    }
+                }
+                catch (Exception ex)
+                {
+                    completionSource.TrySetException(ex);
+                }
+            }
+
+            static void MoveNextCore(object state)
+            {
+                var self = (_Pairwise)state;
+
+                if (self.TryGetResult(self.awaiter, out var result))
+                {
+                    if (result)
+                    {
+                        if (self.isFirst)
+                        {
+                            self.isFirst = false;
+                            self.prev = self.enumerator.Current;
+                            self.SourceMoveNext(); // run again. okay to use recursive(only one more).
+                        }
+                        else
+                        {
+                            var p = self.prev;
+                            self.prev = self.enumerator.Current;
+                            self.Current = (p, self.prev);
+                            self.completionSource.TrySetResult(true);
+                        }
+                    }
+                    else
+                    {
+                        self.completionSource.TrySetResult(false);
+                    }
+                }
+            }
+
+            public UniTask DisposeAsync()
+            {
+                TaskTracker.RemoveTracking(this);
+                if (enumerator != null)
+                {
+                    return enumerator.DisposeAsync();
+                }
+                return default;
+            }
+        }
+    }
+}

src/UniTask/Assets/Plugins/UniTask/Runtime/Linq/Pairwise.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: cddbf051d2a88f549986c468b23214af
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

src/UniTask/Assets/Plugins/UniTask/Runtime/UniTask.Factory.cs

@@ -105,34 +105,67 @@ namespace Cysharp.Threading.Tasks
         /// helper of create add UniTaskVoid to delegate.
         /// For example: FooEvent += () => UniTask.Void(async () => { /* */ })
         /// </summary>
-        public static void Void(Func<UniTask> asyncAction)
+        public static void Void(Func<UniTaskVoid> asyncAction)
         {
             asyncAction().Forget();
         }
 
-        public static Action VoidAction(Func<UniTask> asyncAction)
+        /// <summary>
+        /// helper of create add UniTaskVoid to delegate.
+        /// </summary>
+        public static void Void(Func<CancellationToken, UniTaskVoid> asyncAction, CancellationToken cancellationToken)
         {
-            return () => Void(asyncAction);
+            asyncAction(cancellationToken).Forget();
         }
 
-#if UNITY_2018_3_OR_NEWER
-
-        public static UnityEngine.Events.UnityAction VoidUnityAction(Func<UniTask> asyncAction)
-        {
-            return () => Void(asyncAction);
-        }
-
-#endif
-
         /// <summary>
         /// helper of create add UniTaskVoid to delegate.
         /// For example: FooEvent += (sender, e) => UniTask.Void(async arg => { /* */ }, (sender, e))
         /// </summary>
-        public static void Void<T>(Func<T, UniTask> asyncAction, T state)
+        public static void Void<T>(Func<T, UniTaskVoid> asyncAction, T state)
         {
             asyncAction(state).Forget();
         }
 
+        /// <summary>
+        /// helper of create add UniTaskVoid to delegate.
+        /// For example: FooAction = UniTask.Action(async () => { /* */ })
+        /// </summary>
+        public static Action Action(Func<UniTaskVoid> asyncAction)
+        {
+            return () => asyncAction().Forget();
+        }
+
+        /// <summary>
+        /// helper of create add UniTaskVoid to delegate.
+        /// </summary>
+        public static Action Action(Func<CancellationToken, UniTaskVoid> asyncAction, CancellationToken cancellationToken)
+        {
+            return () => asyncAction(cancellationToken).Forget();
+        }
+
+#if UNITY_2018_3_OR_NEWER
+
+        /// <summary>
+        /// Create async void(UniTaskVoid) UnityAction.
+        /// For exampe: onClick.AddListener(UniTask.UnityAction(async () => { /* */ } ))
+        /// </summary>
+        public static UnityEngine.Events.UnityAction UnityAction(Func<UniTaskVoid> asyncAction)
+        {
+            return () => asyncAction().Forget();
+        }
+
+        /// <summary>
+        /// Create async void(UniTaskVoid) UnityAction.
+        /// For exampe: onClick.AddListener(UniTask.UnityAction(FooAsync, this.GetCancellationTokenOnDestroy()))
+        /// </summary>
+        public static UnityEngine.Events.UnityAction UnityAction(Func<CancellationToken, UniTaskVoid> asyncAction, CancellationToken cancellationToken)
+        {
+            return () => asyncAction(cancellationToken).Forget();
+        }
+
+#endif
+
         /// <summary>
         /// Defer the task creation just before call await.
         /// </summary>

src/UniTask/Assets/Plugins/UniTask/Runtime/UniTask.asmdef

@@ -2,7 +2,8 @@
     "name": "UniTask",
     "references": [
         "Unity.ResourceManager",
-        "Unity.TextMeshPro"
+        "Unity.TextMeshPro",
+        "DOTween.Modules"
     ],
     "includePlatforms": [],
     "excludePlatforms": [],
@@ -21,6 +22,11 @@
             "name": "com.unity.textmeshpro",
             "expression": "",
             "define": "UNITASK_TEXTMESHPRO_SUPPORT"
+        },
+        {
+            "name": "com.demigiant.dotween",
+            "expression": "",
+            "define": "UNITASK_DOTWEEN_SUPPORT"
         }
     ],
     "noEngineReferences": false

src/UniTask/Assets/Plugins/UniTask/Runtime/UniTaskCompletionSource.cs

@@ -123,7 +123,14 @@ namespace Cysharp.Threading.Tasks
             {
                 // setup result
                 this.hasUnhandledError = true;
-                this.error = ExceptionDispatchInfo.Capture(error);
+                if (error is OperationCanceledException)
+                {
+                    this.error = error;
+                }
+                else
+                {
+                    this.error = ExceptionDispatchInfo.Capture(error);
+                }
 
                 if (continuation != null || Interlocked.CompareExchange(ref this.continuation, UniTaskCompletionSourceCoreShared.s_sentinel, null) != null)
                 {

src/UniTask/Assets/Plugins/UniTask/Runtime/UniTaskExtensions.cs

@@ -559,36 +559,6 @@ namespace Cysharp.Threading.Tasks
             return await continuationFunction();
         }
 
-#if UNITY_2018_3_OR_NEWER
-
-        public static async UniTask ConfigureAwait(this Task task, PlayerLoopTiming timing)
-        {
-            await task.ConfigureAwait(false);
-            await UniTask.Yield(timing);
-        }
-
-        public static async UniTask<T> ConfigureAwait<T>(this Task<T> task, PlayerLoopTiming timing)
-        {
-            var v = await task.ConfigureAwait(false);
-            await UniTask.Yield(timing);
-            return v;
-        }
-
-        public static async UniTask ConfigureAwait(this UniTask task, PlayerLoopTiming timing)
-        {
-            await task;
-            await UniTask.Yield(timing);
-        }
-
-        public static async UniTask<T> ConfigureAwait<T>(this UniTask<T> task, PlayerLoopTiming timing)
-        {
-            var v = await task;
-            await UniTask.Yield(timing);
-            return v;
-        }
-
-#endif
-
         public static async UniTask<T> Unwrap<T>(this UniTask<UniTask<T>> task)
         {
             return await await task;

src/UniTask/Assets/Plugins/UniTask/Runtime/UnityAsyncExtensions.Jobs.cs

@@ -28,22 +28,8 @@ namespace Cysharp.Threading.Tasks
 
             return new UniTask(handler, token).GetAwaiter();
         }
-
-        public static UniTask ToUniTask(this JobHandle jobHandle)
-        {
-            var handler = JobHandlePromise.Create(jobHandle, out var token);
-            {
-                PlayerLoopHelper.AddAction(PlayerLoopTiming.EarlyUpdate, handler);
-                PlayerLoopHelper.AddAction(PlayerLoopTiming.PreUpdate, handler);
-                PlayerLoopHelper.AddAction(PlayerLoopTiming.Update, handler);
-                PlayerLoopHelper.AddAction(PlayerLoopTiming.PreLateUpdate, handler);
-                PlayerLoopHelper.AddAction(PlayerLoopTiming.PostLateUpdate, handler);
-            }
-
-            return new UniTask(handler, token);
-        }
-
-        public static UniTask ConfigureAwait(this JobHandle jobHandle, PlayerLoopTiming waitTiming)
+     
+        public static UniTask ToUniTask(this JobHandle jobHandle, PlayerLoopTiming waitTiming)
         {
             var handler = JobHandlePromise.Create(jobHandle, out var token);
             {

src/UniTask/Assets/Plugins/UniTask/Runtime/UnityAsyncExtensions.cs

@@ -21,18 +21,18 @@ namespace Cysharp.Threading.Tasks
             return new AsyncOperationAwaiter(asyncOperation);
         }
 
-        public static UniTask ToUniTask(this AsyncOperation asyncOperation)
+        public static UniTask WithCancellation(this AsyncOperation asyncOperation, CancellationToken cancellationToken)
         {
             Error.ThrowArgumentNullException(asyncOperation, nameof(asyncOperation));
-
-            return new UniTask(AsyncOperationConfiguredSource.Create(asyncOperation, PlayerLoopTiming.Update, null, CancellationToken.None, out var token), token);
+            if (asyncOperation.isDone) return UniTask.CompletedTask;
+            return new UniTask(AsyncOperationConfiguredSource.Create(asyncOperation, PlayerLoopTiming.Update, null, cancellationToken, out var token), token);
         }
 
-        public static UniTask ConfigureAwait(this AsyncOperation asyncOperation, IProgress<float> progress = null, PlayerLoopTiming timing = PlayerLoopTiming.Update, CancellationToken cancellation = default(CancellationToken))
+        public static UniTask ToUniTask(this AsyncOperation asyncOperation, IProgress<float> progress = null, PlayerLoopTiming timing = PlayerLoopTiming.Update, CancellationToken cancellationToken = default(CancellationToken))
         {
             Error.ThrowArgumentNullException(asyncOperation, nameof(asyncOperation));
-
-            return new UniTask(AsyncOperationConfiguredSource.Create(asyncOperation, timing, progress, cancellation, out var token), token);
+            if (asyncOperation.isDone) return UniTask.CompletedTask;
+            return new UniTask(AsyncOperationConfiguredSource.Create(asyncOperation, timing, progress, cancellationToken, out var token), token);
         }
 
         public struct AsyncOperationAwaiter : ICriticalNotifyCompletion
@@ -125,7 +125,6 @@ namespace Cysharp.Threading.Tasks
                 }
             }
 
-
             public UniTaskStatus GetStatus(short token)
             {
                 return core.GetStatus(token);
@@ -190,18 +189,18 @@ namespace Cysharp.Threading.Tasks
             return new ResourceRequestAwaiter(asyncOperation);
         }
 
-        public static UniTask<UnityEngine.Object> ToUniTask(this ResourceRequest asyncOperation)
+        public static UniTask<UnityEngine.Object> WithCancellation(this ResourceRequest asyncOperation, CancellationToken cancellationToken)
         {
             Error.ThrowArgumentNullException(asyncOperation, nameof(asyncOperation));
-
-            return new UniTask<UnityEngine.Object>(ResourceRequestConfiguredSource.Create(asyncOperation, PlayerLoopTiming.Update, null, CancellationToken.None, out var token), token);
+            if (asyncOperation.isDone) return UniTask.FromResult(asyncOperation.asset);
+            return new UniTask<UnityEngine.Object>(ResourceRequestConfiguredSource.Create(asyncOperation, PlayerLoopTiming.Update, null, cancellationToken, out var token), token);
         }
 
-        public static UniTask<UnityEngine.Object> ConfigureAwait(this ResourceRequest asyncOperation, IProgress<float> progress = null, PlayerLoopTiming timing = PlayerLoopTiming.Update, CancellationToken cancellation = default(CancellationToken))
+        public static UniTask<UnityEngine.Object> ToUniTask(this ResourceRequest asyncOperation, IProgress<float> progress = null, PlayerLoopTiming timing = PlayerLoopTiming.Update, CancellationToken cancellationToken = default(CancellationToken))
         {
             Error.ThrowArgumentNullException(asyncOperation, nameof(asyncOperation));
-
-            return new UniTask<UnityEngine.Object>(ResourceRequestConfiguredSource.Create(asyncOperation, timing, progress, cancellation, out var token), token);
+            if (asyncOperation.isDone) return UniTask.FromResult(asyncOperation.asset);
+            return new UniTask<UnityEngine.Object>(ResourceRequestConfiguredSource.Create(asyncOperation, timing, progress, cancellationToken, out var token), token);
         }
 
         public struct ResourceRequestAwaiter : ICriticalNotifyCompletion
@@ -367,18 +366,18 @@ namespace Cysharp.Threading.Tasks
             return new AssetBundleRequestAwaiter(asyncOperation);
         }
 
-        public static UniTask<UnityEngine.Object> ToUniTask(this AssetBundleRequest asyncOperation)
+        public static UniTask<UnityEngine.Object> WithCancellation(this AssetBundleRequest asyncOperation, CancellationToken cancellationToken)
         {
             Error.ThrowArgumentNullException(asyncOperation, nameof(asyncOperation));
-
-            return new UniTask<UnityEngine.Object>(AssetBundleRequestConfiguredSource.Create(asyncOperation, PlayerLoopTiming.Update, null, CancellationToken.None, out var token), token);
+            if (asyncOperation.isDone) return UniTask.FromResult(asyncOperation.asset);
+            return new UniTask<UnityEngine.Object>(AssetBundleRequestConfiguredSource.Create(asyncOperation, PlayerLoopTiming.Update, null, cancellationToken, out var token), token);
         }
 
-        public static UniTask<UnityEngine.Object> ConfigureAwait(this AssetBundleRequest asyncOperation, IProgress<float> progress = null, PlayerLoopTiming timing = PlayerLoopTiming.Update, CancellationToken cancellation = default(CancellationToken))
+        public static UniTask<UnityEngine.Object> ToUniTask(this AssetBundleRequest asyncOperation, IProgress<float> progress = null, PlayerLoopTiming timing = PlayerLoopTiming.Update, CancellationToken cancellationToken = default(CancellationToken))
         {
             Error.ThrowArgumentNullException(asyncOperation, nameof(asyncOperation));
-
-            return new UniTask<UnityEngine.Object>(AssetBundleRequestConfiguredSource.Create(asyncOperation, timing, progress, cancellation, out var token), token);
+            if (asyncOperation.isDone) return UniTask.FromResult(asyncOperation.asset);
+            return new UniTask<UnityEngine.Object>(AssetBundleRequestConfiguredSource.Create(asyncOperation, timing, progress, cancellationToken, out var token), token);
         }
 
         public struct AssetBundleRequestAwaiter : ICriticalNotifyCompletion
@@ -544,18 +543,18 @@ namespace Cysharp.Threading.Tasks
             return new AssetBundleCreateRequestAwaiter(asyncOperation);
         }
 
-        public static UniTask<AssetBundle> ToUniTask(this AssetBundleCreateRequest asyncOperation)
+        public static UniTask<AssetBundle> WithCancellation(this AssetBundleCreateRequest asyncOperation, CancellationToken cancellationToken)
         {
             Error.ThrowArgumentNullException(asyncOperation, nameof(asyncOperation));
-
-            return new UniTask<AssetBundle>(AssetBundleCreateRequestConfiguredSource.Create(asyncOperation, PlayerLoopTiming.Update, null, CancellationToken.None, out var token), token);
+            if (asyncOperation.isDone) return UniTask.FromResult(asyncOperation.assetBundle);
+            return new UniTask<AssetBundle>(AssetBundleCreateRequestConfiguredSource.Create(asyncOperation, PlayerLoopTiming.Update, null, cancellationToken, out var token), token);
         }
 
-        public static UniTask<AssetBundle> ConfigureAwait(this AssetBundleCreateRequest asyncOperation, IProgress<float> progress = null, PlayerLoopTiming timing = PlayerLoopTiming.Update, CancellationToken cancellation = default(CancellationToken))
+        public static UniTask<AssetBundle> ToUniTask(this AssetBundleCreateRequest asyncOperation, IProgress<float> progress = null, PlayerLoopTiming timing = PlayerLoopTiming.Update, CancellationToken cancellationToken = default(CancellationToken))
         {
             Error.ThrowArgumentNullException(asyncOperation, nameof(asyncOperation));
-
-            return new UniTask<AssetBundle>(AssetBundleCreateRequestConfiguredSource.Create(asyncOperation, timing, progress, cancellation, out var token), token);
+            if (asyncOperation.isDone) return UniTask.FromResult(asyncOperation.assetBundle);
+            return new UniTask<AssetBundle>(AssetBundleCreateRequestConfiguredSource.Create(asyncOperation, timing, progress, cancellationToken, out var token), token);
         }
 
         public struct AssetBundleCreateRequestAwaiter : ICriticalNotifyCompletion
@@ -722,18 +721,18 @@ namespace Cysharp.Threading.Tasks
             return new UnityWebRequestAsyncOperationAwaiter(asyncOperation);
         }
 
-        public static UniTask<UnityWebRequest> ToUniTask(this UnityWebRequestAsyncOperation asyncOperation)
+        public static UniTask<UnityWebRequest> WithCancellation(this UnityWebRequestAsyncOperation asyncOperation, CancellationToken cancellationToken)
         {
             Error.ThrowArgumentNullException(asyncOperation, nameof(asyncOperation));
-
-            return new UniTask<UnityWebRequest>(UnityWebRequestAsyncOperationConfiguredSource.Create(asyncOperation, PlayerLoopTiming.Update, null, CancellationToken.None, out var token), token);
+            if (asyncOperation.isDone) return UniTask.FromResult(asyncOperation.webRequest);
+            return new UniTask<UnityWebRequest>(UnityWebRequestAsyncOperationConfiguredSource.Create(asyncOperation, PlayerLoopTiming.Update, null, cancellationToken, out var token), token);
         }
 
-        public static UniTask<UnityWebRequest> ConfigureAwait(this UnityWebRequestAsyncOperation asyncOperation, IProgress<float> progress = null, PlayerLoopTiming timing = PlayerLoopTiming.Update, CancellationToken cancellation = default(CancellationToken))
+        public static UniTask<UnityWebRequest> ToUniTask(this UnityWebRequestAsyncOperation asyncOperation, IProgress<float> progress = null, PlayerLoopTiming timing = PlayerLoopTiming.Update, CancellationToken cancellationToken = default(CancellationToken))
         {
             Error.ThrowArgumentNullException(asyncOperation, nameof(asyncOperation));
-
-            return new UniTask<UnityWebRequest>(UnityWebRequestAsyncOperationConfiguredSource.Create(asyncOperation, timing, progress, cancellation, out var token), token);
+            if (asyncOperation.isDone) return UniTask.FromResult(asyncOperation.webRequest);
+            return new UniTask<UnityWebRequest>(UnityWebRequestAsyncOperationConfiguredSource.Create(asyncOperation, timing, progress, cancellationToken, out var token), token);
         }
 
         public struct UnityWebRequestAsyncOperationAwaiter : ICriticalNotifyCompletion

src/UniTask/Assets/Plugins/UniTask/package.json

@@ -1,7 +1,7 @@
 {
     "name": "com.cysharp.unitask",
     "displayName": "UniTask",
-    "version": "2.0.8-rc5",
+    "version": "2.0.10-rc7",
     "unity": "2018.3",
     "description": "Provides an efficient async/await integration to Unity.",
     "keywords": [ "async/await", "async", "Task", "UniTask" ],

src/UniTask/Assets/Scenes/SandboxMain.cs

@@ -12,6 +12,9 @@ using Unity.Jobs;
 using UnityEngine;
 using UnityEngine.UI;
 
+
+// using DG.Tweening;
+
 public struct MyJob : IJob
 {
     public int loopCount;
@@ -142,8 +145,6 @@ public class SandboxMain : MonoBehaviour
     {
         // State<int> Hp { get; }
 
-        AsyncReactiveProperty<int> hp;
-        IReadOnlyAsyncReactiveProperty<int> Hp => hp;
 
 
 
@@ -172,23 +173,10 @@ public class SandboxMain : MonoBehaviour
     public Text text;
     public Button button;
 
-    [SerializeField]
-    State<int> count;
 
     void Start2()
     {
-        count = 10;
 
-        var countS = count.GetSetter();
-
-        count.BindTo(text);
-        button.OnClickAsAsyncEnumerable().ForEachAsync(_ =>
-        {
-            // int foo = countS;
-            //countS.Set(countS += 10);
-
-            // setter.SetValue(count.Value + 10);
-        });
     }
 
 
@@ -255,16 +243,9 @@ public class SandboxMain : MonoBehaviour
         public int MyProperty { get; set; }
     }
 
-    MyClass mcc;
 
-    void Start()
+    void  Start()
     {
-        this.mcc = new MyClass();
-        this.MyProperty = 999;
-
-        CheckDest().Forget();
-
-
         //UniTaskAsyncEnumerable.EveryValueChanged(mcc, x => x.MyProperty)
         //    .Do(_ => { }, () => Debug.Log("COMPLETED"))
         //    .ForEachAsync(x =>
@@ -275,35 +256,51 @@ public class SandboxMain : MonoBehaviour
 
 
 
+        // DG.Tweening.Core.TweenerCore<int>
+        //okButton.GetComponent<RectTransform>().DOMoveX(10.2f, 30);
+
+
+        // DOTween.To(
+
+        var cts = new CancellationTokenSource();
+
+        //var tween = okButton.GetComponent<RectTransform>().DOLocalMoveX(100, 5.0f);
+
+        cancelButton.OnClickAsAsyncEnumerable().ForEachAsync(_ =>
+        {
+            cts.Cancel();
+        }).Forget();
+
+
+        // await tween.ToUniTask(TweenCancelBehaviour.KillAndCancelAwait, cts.Token);
+
+        //tween.SetRecyclable(true);
+
+        Debug.Log("END");
+
+        // tween.Play();
+
+        // DOTween.
+
+        // DOVirtual.Float(0, 1, 1, x => { }).ToUniTask();
 
         okButton.OnClickAsAsyncEnumerable().ForEachAsync(_ =>
         {
 
-            mcc.MyProperty += 10;
+
 
 
 
         }).Forget();
 
-        cancelButton.OnClickAsAsyncEnumerable().ForEachAsync(_ =>
-        {
-            this.mcc = null;
-        });
 
+
+        okButton.onClick.AddListener(UniTask.UnityAction(async () => await UniTask.Yield()));
     }
 
-    async UniTaskVoid CheckDest()
+    async UniTaskVoid CloseAsync(CancellationToken cancellationToken = default)
     {
-        try
-        {
-            Debug.Log("WAIT");
-            await UniTask.WaitUntilValueChanged(mcc, x => x.MyProperty);
-            Debug.Log("CHANGED?");
-        }
-        finally
-        {
-            Debug.Log("END");
-        }
+        await UniTask.Yield();
     }
 
     async UniTaskVoid Running(CancellationToken ct)
@@ -538,7 +535,7 @@ public class SandboxMain : MonoBehaviour
 
 public class ShowPlayerLoop
 {
-    [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
+    // [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
     static void Init()
     {
         var playerLoop = UnityEngine.LowLevel.PlayerLoop.GetDefaultPlayerLoop();

src/UniTask/Assets/Tests/AsyncTest.cs

@@ -124,7 +124,6 @@ namespace Cysharp.Threading.TasksTests
         public IEnumerator BothEnumeratorCheck() => UniTask.ToCoroutine(async () =>
         {
             await ToaruCoroutineEnumerator(); // wait 5 frame:)
-            await ToaruCoroutineEnumerator().ConfigureAwait(PlayerLoopTiming.PostLateUpdate);
         });
 
         [UnityTest]

src/UniTask/Assets/Tests/Editor/AsyncTestEditor.cs

@@ -124,7 +124,6 @@ namespace Cysharp.Threading.TasksTests
         public IEnumerator BothEnumeratorCheck() => UniTask.ToCoroutine(async () =>
         {
             await ToaruCoroutineEnumerator(); // wait 5 frame:)
-            await ToaruCoroutineEnumerator().ConfigureAwait(PlayerLoopTiming.PostLateUpdate);
         });
 
         [UnityTest]

src/UniTask/Assets/Tests/Editor/UniTask.Tests.Editor.asmdef

@@ -5,7 +5,8 @@
         "UnityEditor.TestRunner",
         "UniTask.Tests",
         "UniTask",
-        "Unity.ResourceManager"
+        "Unity.ResourceManager",
+        "DOTween.Modules"
     ],
     "includePlatforms": [
         "Editor"
@@ -14,7 +15,8 @@
     "allowUnsafeCode": false,
     "overrideReferences": true,
     "precompiledReferences": [
-        "nunit.framework.dll"
+        "nunit.framework.dll",
+        "DOTween.dll"
     ],
     "autoReferenced": false,
     "defineConstraints": [

src/UniTask/Assets/Tests/UniTask.Tests.asmdef

@@ -4,14 +4,16 @@
         "UnityEngine.TestRunner",
         "UnityEditor.TestRunner",
         "UniTask",
-        "Unity.ResourceManager"
+        "Unity.ResourceManager",
+        "DOTween.Modules"
     ],
     "includePlatforms": [],
     "excludePlatforms": [],
     "allowUnsafeCode": false,
     "overrideReferences": true,
     "precompiledReferences": [
-        "nunit.framework.dll"
+        "nunit.framework.dll",
+        "DOTween.dll"
     ],
     "autoReferenced": false,
     "defineConstraints": [