2.0.14 pkg version

Generate and publish documentation to GitHub Pages

.github/workflows/build-docs.yml

@@ -0,0 +1,31 @@
+name: build-docs
+
+on:
+  push:
+    branches:
+      - master
+      - feature/docs
+
+jobs:
+  run-docfx:
+    if: "!(contains(github.event.head_commit.message, '[skip ci]') || contains(github.event.head_commit.message, '[ci skip]'))"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2
+        with:
+          repository: Cysharp/DocfxTemplate
+          path: docs/_DocfxTemplate
+      - uses: Kirbyrawr/docfx-action@master
+        name: Docfx metadata
+        with:
+          args: metadata docs/docfx.json
+      - uses: Kirbyrawr/docfx-action@master
+        name: Docfx build
+        with:
+          args: build docs/docfx.json
+      - name: Publish to GitHub Pages
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: docs/_site

.github/workflows/build-release.yml

@@ -61,8 +61,8 @@ jobs:
       # Store artifacts.      
       - uses: actions/upload-artifact@v2
         with:
-          name: UniTask.unitypackage.zip
+          name: UniTask.${{ env.GIT_TAG }}.unitypackage
-          path: ./src/UniTask/*.unitypackage
+          path: ./src/UniTask/UniTask.${{ env.GIT_TAG }}.unitypackage
 
   create-release:
     needs: [build-dotnet, build-unity]

.gitignore

@@ -159,3 +159,49 @@ src/UniTask/UniTask.Tests.Editor.csproj
 src/UniTask/UniTask.*.unitypackage
 
 src/UniTask/UniTask.Linq.csproj
+
+src/UniTask/DOTween.Modules.csproj
+
+src/UniTask/Unity.Addressables.csproj
+
+src/UniTask/Unity.Addressables.Editor.csproj
+
+src/UniTask/Unity.Analytics.DataPrivacy.csproj
+
+src/UniTask/Unity.Recorder.csproj
+
+src/UniTask/Unity.Recorder.Editor.csproj
+
+src/UniTask/Unity.ResourceManager.csproj
+
+src/UniTask/Unity.Rider.Editor.csproj
+
+src/UniTask/Unity.ScriptableBuildPipeline.csproj
+
+src/UniTask/Unity.ScriptableBuildPipeline.Editor.csproj
+
+src/UniTask/Unity.TextMeshPro.csproj
+
+src/UniTask/Unity.TextMeshPro.Editor.csproj
+
+src/UniTask/Unity.Timeline.csproj
+
+src/UniTask/Unity.Timeline.Editor.csproj
+
+src/UniTask/Unity.VisualStudio.Editor.csproj
+
+src/UniTask/Unity.VSCode.Editor.csproj
+
+src/UniTask/UnityEditor.CacheServer.csproj
+
+src/UniTask/UnityEditor.TestRunner.csproj
+
+src/UniTask/UnityEditor.UI.csproj
+
+src/UniTask/UnityEngine.Advertisements.csproj
+
+src/UniTask/UnityEngine.Monetization.csproj
+
+src/UniTask/UnityEngine.TestRunner.csproj
+
+src/UniTask/UnityEngine.UI.csproj

README.md

@@ -6,7 +6,7 @@ Provides an efficient async/await integration to Unity.
 
 * Struct based `UniTask<T>` and custom AsyncMethodBuilder to achive zero allocation
 * All Unity AsyncOperations and Coroutine to awaitable
-* PlayerLoop based task(`UniTask.Yield`, `UniTask.Delay`, `UniTask.DelayFrame`, etc...) that enable to replace all coroutine operation
+* PlayerLoop based task(`UniTask.Yield`, `UniTask.Delay`, `UniTask.DelayFrame`, etc..) that enable to replace all coroutine operation
 * MonoBehaviour Message Events and uGUI Events as awaitable/async-enumerable
 * Completely run on Unity's PlayerLoop so don't use thread and run on WebGL, wasm, etc.
 * Asynchronous LINQ, with Channel and AsyncReactiveProperty
@@ -29,6 +29,7 @@ Provides an efficient async/await integration to Unity.
 - [Awaitable Events](#awaitable-events)
 - [Channel](#channel)
 - [For Unit Testing](#for-unit-testing)
+- [Pooling Configuration](#pooling-configuration)
 - [API References](#api-references)
 - [UPM Package](#upm-package)
   - [Install via git URL](#install-via-git-url)
@@ -324,6 +325,10 @@ It indicates when to run, you can check [PlayerLoopList.md](https://gist.github.
 
 `PlayerLoopTiming.FixedUpdate` is similar as `WaitForFixedUpdate`, `PlayerLoopTiming.LastPostLateUpdate` is similar as `WaitForEndOfFrame` in coroutine.
 
+In stacktrace, you can check where is running in playerloop.
+
+![image](https://user-images.githubusercontent.com/46207/83735571-83caea80-a68b-11ea-8d22-5e22864f0d24.png)
+
 In default, UniTask's PlayerLoop is initialized at `[RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)]`.
 
 The order in which methods are called in BeforeSceneLoad is indeterminate, so if you want to use UniTask in other BeforeSceneLoad methods, you should try to initialize it before this.
@@ -413,7 +418,7 @@ For debug use, enable tracking and capture stacktrace is useful but it it declin
 
 External Assets
 ---
-In default, UniTask supports DOTween and Addressable(`AsyncOperationHandle` and `AsyncOpereationHandle<T>` as awaitable).
+In default, UniTask supports DOTween and Addressables(`AsyncOperationHandle` and `AsyncOpereationHandle<T>` as awaitable).
 
 For DOTween support, require to `com.demigiant.dotween` import from [OpenUPM](https://openupm.com/packages/com.demigiant.dotween/) or define `UNITASK_DOTWEEN_SUPPORT` to enable it.
 
@@ -649,6 +654,17 @@ public IEnumerator DelayIgnore() => UniTask.ToCoroutine(async () =>
 
 UniTask itself's unit test is written by Unity Test Runner and [Cysharp/RuntimeUnitTestToolkit](https://github.com/Cysharp/RuntimeUnitTestToolkit) to check on CI and IL2CPP working.
 
+Pooling Configuration
+---
+UniTask is aggressively caching async promise object to achive zero allocation. In default, cache all promises but you can configure `TaskPool.SetMaxPoolSize` to your value, the value indicates cache size per type. `TaskPool.GetCacheSizeInfo` returns current cached object in pool.
+
+```csharp
+foreach (var (type, size) in TaskPool.GetCacheSizeInfo())
+{
+    Debug.Log(type + ":" + size);
+}
+```
+
 API References
 ---
 UniTask's API References is hosted at [cysharp.github.io/UniTask](https://cysharp.github.io/UniTask/api/Cysharp.Threading.Tasks.html) by [DocFX](https://dotnet.github.io/docfx/) and [Cysharp/DocfXTemplate](https://github.com/Cysharp/DocfxTemplate).
@@ -714,4 +730,4 @@ Utility methods such as WhenAll which is equivalent to UniTask are provided as [
 
 License
 ---
-This library is under the MIT License.
+This library is under the MIT License.

docs/.gitignore

@@ -0,0 +1,10 @@
+###############
+#    folder   #
+###############
+/**/DROP/
+/**/TEMP/
+/**/packages/
+/**/bin/
+/**/obj/
+_site
+_DocfxTemplate

docs/api/.gitignore

@@ -0,0 +1,5 @@
+###############
+#  temp file  #
+###############
+*.yml
+.manifest

docs/docfx.json

@@ -0,0 +1,70 @@
+{
+  "metadata": [
+    {
+      "src": [
+        {
+          "files": [
+            "UniTask/Assets/Plugins/UniTask/Runtime/**/*.cs"
+          ],
+          "src": "../src"
+        }
+      ],
+      "dest": "api",
+      "disableGitFeatures": false,
+      "disableDefaultFilter": false
+    }
+  ],
+  "build": {
+    "globalMetadata": {
+      "_disableContribution": true,
+      "_appTitle": "UniTask"
+    },
+    "content": [
+      {
+        "files": [
+          "api/**.yml",
+          "api/index.md"
+        ]
+      },
+      {
+        "files": [
+          "articles/**.md",
+          "articles/**/toc.yml",
+          "toc.yml",
+          "*.md"
+        ]
+      }
+    ],
+    "resource": [
+      {
+        "files": [
+          "images/**"
+        ]
+      }
+    ],
+    "overwrite": [
+      {
+        "files": [
+          "apidoc/**.md"
+        ],
+        "exclude": [
+          "obj/**",
+          "_site/**"
+        ]
+      }
+    ],
+    "dest": "_site",
+
+    "globalMetadataFiles": [],
+    "fileMetadataFiles": [],
+    "template": [
+      "_DocfxTemplate/templates/default-v2.5.2",
+      "_DocfxTemplate/templates/cysharp"
+    ],
+    "postProcessors": [],
+    "markdownEngineName": "markdig",
+    "noLangKeyword": false,
+    "keepFileLink": false,
+    "cleanupCacheHistory": false
+  }
+}

docs/index.md

@@ -0,0 +1,8 @@
+---
+title: Home
+---
+# UniTask
+
+Provides an efficient async/await integration to Unity.
+
+https://github.com/Cysharp/UniTask

docs/toc.yml

@@ -0,0 +1,11 @@
+- name: API Documentation
+  href: api/
+  homepage: api/Cysharp.Threading.Tasks.html
+
+- name: Repository
+  href: https://github.com/Cysharp/UniTask
+  homepage: https://github.com/Cysharp/UniTask
+
+- name: Releases
+  href: https://github.com/Cysharp/UniTask/releases
+  homepage: https://github.com/Cysharp/UniTask/releases

src/UniTask.NetCore/NetCore/UniTask.AsValueTask.cs

@@ -1,6 +1,8 @@
 #pragma warning disable 0649
 
+using System;
 using System.Threading.Tasks;
+using System.Threading.Tasks.Sources;
 
 namespace Cysharp.Threading.Tasks
 {
@@ -8,12 +10,20 @@ namespace Cysharp.Threading.Tasks
     {
         public static ValueTask AsValueTask(this in UniTask task)
         {
+#if NETSTANDARD2_0
+            return new ValueTask(new UniTaskValueTaskSource(task), 0);
+#else
             return task;
+#endif
         }
 
         public static ValueTask<T> AsValueTask<T>(this in UniTask<T> task)
         {
+#if NETSTANDARD2_0
+            return new ValueTask<T>(new UniTaskValueTaskSource<T>(task), 0);
+#else
             return task;
+#endif
         }
 
         public static UniTask<T> AsUniTask<T>(this ValueTask<T> task, bool useCurrentSynchronizationContext = true)
@@ -26,5 +36,63 @@ namespace Cysharp.Threading.Tasks
         {
             return task.AsTask().AsUniTask(useCurrentSynchronizationContext);
         }
+
+#if NETSTANDARD2_0
+
+        class UniTaskValueTaskSource : IValueTaskSource
+        {
+            readonly UniTask task;
+            readonly UniTask.Awaiter awaiter;
+
+            public UniTaskValueTaskSource(UniTask task)
+            {
+                this.task = task;
+                this.awaiter = task.GetAwaiter();
+            }
+
+            public void GetResult(short token)
+            {
+                awaiter.GetResult();
+            }
+
+            public ValueTaskSourceStatus GetStatus(short token)
+            {
+                return (ValueTaskSourceStatus)task.Status;
+            }
+
+            public void OnCompleted(Action<object> continuation, object state, short token, ValueTaskSourceOnCompletedFlags flags)
+            {
+                awaiter.SourceOnCompleted(continuation, state);
+            }
+        }
+
+        class UniTaskValueTaskSource<T> : IValueTaskSource<T>
+        {
+            readonly UniTask<T> task;
+            readonly UniTask<T>.Awaiter awaiter;
+
+            public UniTaskValueTaskSource(UniTask<T> task)
+            {
+                this.task = task;
+                this.awaiter = task.GetAwaiter();
+            }
+
+            public T GetResult(short token)
+            {
+                return awaiter.GetResult();
+            }
+
+            public ValueTaskSourceStatus GetStatus(short token)
+            {
+                return (ValueTaskSourceStatus)task.Status;
+            }
+
+            public void OnCompleted(Action<object> continuation, object state, short token, ValueTaskSourceOnCompletedFlags flags)
+            {
+                awaiter.SourceOnCompleted(continuation, state);
+            }
+        }
+
+#endif
     }
 }

src/UniTask.NetCore/UniTask.NetCore.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>netcoreapp3.1;netstandard2.1</TargetFrameworks>
+        <TargetFrameworks>netcoreapp3.1;netstandard2.1;netstandard2.0</TargetFrameworks>
         <AssemblyName>UniTask</AssemblyName>
         <LangVersion>8.0</LangVersion>
         <RootNamespace>Cysharp.Threading.Tasks</RootNamespace>

src/UniTask.NetCoreSandbox/Program.cs

@@ -277,7 +277,11 @@ namespace NetCoreSandbox
 #endif
             // await new AllocationCheck().ViaUniTaskVoid();
 
-            // AsyncTest().Forget();
+            // AsyncTest().Forge
+
+            Console.WriteLine("A?");
+            var a = await new ZeroAllocAsyncAwaitInDotNetCore().NanikaAsync(1, 2);
+            Console.WriteLine("RET:" + a);
             await WhereSelect();
 
             SynchronizationContext.SetSynchronizationContext(new MySyncContext());

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

@@ -12,10 +12,12 @@ namespace Cysharp.Threading.Tasks
 {
     public static class EnumeratorAsyncExtensions
     {
-        public static UniTask.Awaiter GetAwaiter(this IEnumerator enumerator)
+        public static UniTask.Awaiter GetAwaiter<T>(this T enumerator)
+            where T : IEnumerator
         {
-            Error.ThrowArgumentNullException(enumerator, nameof(enumerator));
+            var e = (IEnumerator)enumerator;
-            return new UniTask(EnumeratorPromise.Create(enumerator, PlayerLoopTiming.Update, CancellationToken.None, out var token), token).GetAwaiter();
+            Error.ThrowArgumentNullException(e, nameof(enumerator));
+            return new UniTask(EnumeratorPromise.Create(e, PlayerLoopTiming.Update, CancellationToken.None, out var token), token).GetAwaiter();
         }
 
         public static UniTask WithCancellation(this IEnumerator enumerator, CancellationToken cancellationToken)

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

@@ -93,28 +93,30 @@ namespace Cysharp.Threading.Tasks
                 TaskPool.RegisterSizeGetter(typeof(TweenConfiguredSource), () => pool.Size);
             }
 
-            static readonly Action<object> CancellationCallbackDelegate = CancellationCallback;
             static readonly TweenCallback EmptyTweenCallback = () => { };
 
             readonly TweenCallback onKillDelegate;
+            readonly TweenCallback onUpdateDelegate;
 
             Tween tween;
             TweenCancelBehaviour cancelBehaviour;
             CancellationToken cancellationToken;
             bool canceled;
 
-            CancellationTokenRegistration cancellationTokenRegistration;
+            TweenCallback originalUpdateAction;
             UniTaskCompletionSourceCore<AsyncUnit> core;
 
             TweenConfiguredSource()
             {
                 onKillDelegate = OnKill;
+                onUpdateDelegate = OnUpdate;
             }
 
             public static IUniTaskSource Create(Tween tween, TweenCancelBehaviour cancelBehaviour, CancellationToken cancellationToken, out short token)
             {
                 if (cancellationToken.IsCancellationRequested)
                 {
+                    DoCancelBeforeCreate(tween, cancelBehaviour);
                     return AutoResetUniTaskCompletionSource.CreateFromCanceled(cancellationToken, out token);
                 }
 
@@ -127,27 +129,25 @@ namespace Cysharp.Threading.Tasks
                 result.cancelBehaviour = cancelBehaviour;
                 result.cancellationToken = cancellationToken;
 
-                TaskTracker.TrackActiveTask(result, 3);
+                result.originalUpdateAction = tween.onUpdate;
+                result.canceled = false;
 
-                result.RegisterEvent();
+                if (result.originalUpdateAction == result.onUpdateDelegate)
+                {
+                    result.originalUpdateAction = null;
+                }
+
+                tween.onUpdate = result.onUpdateDelegate;
+                tween.onKill = result.onKillDelegate;
+
+                TaskTracker.TrackActiveTask(result, 3);
 
                 token = result.core.Version;
                 return result;
             }
 
-            void RegisterEvent()
-            {
-                if (cancellationToken.CanBeCanceled)
-                {
-                    cancellationTokenRegistration = cancellationToken.RegisterWithoutCaptureExecutionContext(CancellationCallbackDelegate, this);
-                }
-
-                tween.OnKill(onKillDelegate);
-            }
-
             void OnKill()
             {
-                cancellationTokenRegistration.Dispose();
                 if (canceled)
                 {
                     core.TrySetCanceled(cancellationToken);
@@ -158,44 +158,84 @@ namespace Cysharp.Threading.Tasks
                 }
             }
 
-            static void CancellationCallback(object state)
+            void OnUpdate()
             {
-                var self = (TweenConfiguredSource)state;
+                originalUpdateAction?.Invoke();
 
-                switch (self.cancelBehaviour)
+                if (!cancellationToken.IsCancellationRequested)
+                {
+                    return;
+                }
+
+                switch (this.cancelBehaviour)
                 {
                     case TweenCancelBehaviour.Kill:
                     default:
-                        self.tween.Kill(false);
+                        this.tween.Kill(false);
                         break;
                     case TweenCancelBehaviour.KillAndCancelAwait:
-                        self.canceled = true;
+                        this.canceled = true;
-                        self.tween.Kill(false);
+                        this.tween.Kill(false);
                         break;
                     case TweenCancelBehaviour.KillWithCompleteCallback:
-                        self.tween.Kill(true);
+                        this.tween.Kill(true);
                         break;
                     case TweenCancelBehaviour.KillWithCompleteCallbackAndCancelAwait:
-                        self.canceled = true;
+                        this.canceled = true;
-                        self.tween.Kill(true);
+                        this.tween.Kill(true);
                         break;
                     case TweenCancelBehaviour.Complete:
-                        self.tween.Complete(false);
+                        this.tween.Complete(false);
                         break;
                     case TweenCancelBehaviour.CompleteAndCancelAwait:
-                        self.canceled = true;
+                        this.canceled = true;
-                        self.tween.Complete(false);
+                        this.tween.Complete(false);
                         break;
                     case TweenCancelBehaviour.CompleteWithSeqeunceCallback:
-                        self.tween.Complete(true);
+                        this.tween.Complete(true);
                         break;
                     case TweenCancelBehaviour.CompleteWithSeqeunceCallbackAndCancelAwait:
-                        self.canceled = true;
+                        this.canceled = true;
-                        self.tween.Complete(true);
+                        this.tween.Complete(true);
+                        break;
+                    case TweenCancelBehaviour.CancelAwait:
+                        this.tween.onKill = EmptyTweenCallback; // replace to empty(avoid callback after Canceled(instance is returned to pool.)
+                        this.core.TrySetCanceled(this.cancellationToken);
+                        break;
+                }
+            }
+
+            static void DoCancelBeforeCreate(Tween tween, TweenCancelBehaviour tweenCancelBehaviour)
+            {
+
+                switch (tweenCancelBehaviour)
+                {
+                    case TweenCancelBehaviour.Kill:
+                    default:
+                        tween.Kill(false);
+                        break;
+                    case TweenCancelBehaviour.KillAndCancelAwait:
+                        tween.Kill(false);
+                        break;
+                    case TweenCancelBehaviour.KillWithCompleteCallback:
+                        tween.Kill(true);
+                        break;
+                    case TweenCancelBehaviour.KillWithCompleteCallbackAndCancelAwait:
+                        tween.Kill(true);
+                        break;
+                    case TweenCancelBehaviour.Complete:
+                        tween.Complete(false);
+                        break;
+                    case TweenCancelBehaviour.CompleteAndCancelAwait:
+                        tween.Complete(false);
+                        break;
+                    case TweenCancelBehaviour.CompleteWithSeqeunceCallback:
+                        tween.Complete(true);
+                        break;
+                    case TweenCancelBehaviour.CompleteWithSeqeunceCallbackAndCancelAwait:
+                        tween.Complete(true);
                         break;
                     case TweenCancelBehaviour.CancelAwait:
-                        self.tween.onKill = EmptyTweenCallback; // replace to empty(avoid callback after Caceled(instance is returned to pool.)
-                        self.core.TrySetCanceled(self.cancellationToken);
                         break;
                 }
             }
@@ -212,7 +252,6 @@ namespace Cysharp.Threading.Tasks
                 }
             }
 
-
             public UniTaskStatus GetStatus(short token)
             {
                 return core.GetStatus(token);
@@ -232,8 +271,11 @@ namespace Cysharp.Threading.Tasks
             {
                 TaskTracker.RemoveTracking(this);
                 core.Reset();
+                tween.onUpdate = originalUpdateAction;
+                tween.onKill = null;
                 tween = default;
                 cancellationToken = default;
+                originalUpdateAction = default;
                 return pool.TryPush(this);
             }
 

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

@@ -19,7 +19,7 @@ namespace Cysharp.Threading.Tasks
 
     // similar as IValueTaskSource
     public interface IUniTaskSource
-#if !UNITY_2018_3_OR_NEWER
+#if !UNITY_2018_3_OR_NEWER && !NETSTANDARD2_0
         : System.Threading.Tasks.Sources.IValueTaskSource
 #pragma warning disable CS0108
 #endif
@@ -30,7 +30,7 @@ namespace Cysharp.Threading.Tasks
 
         UniTaskStatus UnsafeGetStatus(); // only for debug use.
 
-#if !UNITY_2018_3_OR_NEWER
+#if !UNITY_2018_3_OR_NEWER && !NETSTANDARD2_0
 #pragma warning restore CS0108
 
         System.Threading.Tasks.Sources.ValueTaskSourceStatus System.Threading.Tasks.Sources.IValueTaskSource.GetStatus(short token)
@@ -53,13 +53,13 @@ namespace Cysharp.Threading.Tasks
     }
 
     public interface IUniTaskSource<out T> : IUniTaskSource
-#if !UNITY_2018_3_OR_NEWER
+#if !UNITY_2018_3_OR_NEWER && !NETSTANDARD2_0
         , System.Threading.Tasks.Sources.IValueTaskSource<T>
 #endif
     {
         new T GetResult(short token);
 
-#if !UNITY_2018_3_OR_NEWER
+#if !UNITY_2018_3_OR_NEWER && !NETSTANDARD2_0
 
         new public UniTaskStatus GetStatus(short token)
         {

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

@@ -204,7 +204,7 @@ namespace Cysharp.Threading.Tasks
                 if (f == null) throw new InvalidOperationException("Can't call twice.");
 
                 task = f();
-                awaiter = f().GetAwaiter();
+                awaiter = task.GetAwaiter();
                 return task.Status;
             }
 
@@ -246,7 +246,7 @@ namespace Cysharp.Threading.Tasks
                 if (f == null) throw new InvalidOperationException("Can't call twice.");
 
                 task = f();
-                awaiter = f().GetAwaiter();
+                awaiter = task.GetAwaiter();
                 return task.Status;
             }
 

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

@@ -351,6 +351,8 @@ namespace Cysharp.Threading.Tasks
             {
                 get
                 {
+                    if (!dontPostWhenSameContext) return false;
+
                     var current = SynchronizationContext.Current;
                     if (current == synchronizationContext)
                     {

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

@@ -78,7 +78,11 @@ namespace Cysharp.Threading.Tasks
                 return default;
             }
 
+#if NETSTANDARD2_0
+            return self.AsValueTask();
+#else
             return new System.Threading.Tasks.ValueTask(self.source, self.token);
+#endif
         }
 
 #endif
@@ -439,7 +443,11 @@ namespace Cysharp.Threading.Tasks
                 return new System.Threading.Tasks.ValueTask<T>(self.result);
             }
 
+#if NETSTANDARD2_0
+            return self.AsValueTask();
+#else
             return new System.Threading.Tasks.ValueTask<T>(self.source, self.token);
+#endif
         }
 
 #endif

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

@@ -1,7 +1,7 @@
 {
     "name": "com.cysharp.unitask",
     "displayName": "UniTask",
-    "version": "2.0.13",
+    "version": "2.0.14",
     "unity": "2018.4",
     "description": "Provides an efficient async/await integration to Unity.",
     "keywords": [ "async/await", "async", "Task", "UniTask" ],

src/UniTask/Assets/Scenes/SandboxMain.cs

@@ -15,6 +15,7 @@ using UnityEngine.LowLevel;
 using UnityEngine.Networking;
 using UnityEngine.UI;
 
+
 // using DG.Tweening;
 
 public struct MyJob : IJob
@@ -302,9 +303,17 @@ public class SandboxMain : MonoBehaviour
     }
 
 
-    async UniTaskVoid Start()
+    void Start()
     {
-        await UniTask.SwitchToMainThread();
+        //_ = UniTask.Run(async () =>
+        //{
+        //    var watch = System.Diagnostics.Stopwatch.StartNew();
+        //    await UniTask.Delay(new TimeSpan(0, 0, seconds: 10));
+        //    Debug.Log(watch.Elapsed);
+        //});
+
+        //return;
+        //await UniTask.SwitchToMainThread();
 
         //UniTaskAsyncEnumerable.EveryValueChanged(mcc, x => x.MyProperty)
         //    .Do(_ => { }, () => Debug.Log("COMPLETED"))
@@ -315,10 +324,29 @@ public class SandboxMain : MonoBehaviour
         //    .Forget();
 
         //_ = Test1();
-        Test2().Forget();
+        //Test2().Forget();
         //StartCoroutine(Test3("https://bing.com/"));
 
 
+
+
+
+        //bool flip = false;
+        //var rect = cancelButton.GetComponent<RectTransform>();
+        //var cts = new CancellationTokenSource();
+        //var ct = cts.Token;
+        //okButton.onClick.AddListener(UniTask.UnityAction(async () =>
+        //{
+        //    await rect.DOMoveX(10f * (flip ? -1 : 1), 3).OnUpdate(() => { Debug.Log("UPDATE YEAH"); }).WithCancellation(ct);
+        //    flip = !flip;
+        //    // ok.
+        //}));
+        //cancelButton.onClick.AddListener(() =>
+        //{
+        //    cts.Cancel();
+        //});
+
+
         // DG.Tweening.Core.TweenerCore<int>
         //Debug.Log("GO MOVEX");
         //await okButton.GetComponent<RectTransform>().DOMoveX(-10.2f, 3).WithCancellation(CancellationToken.None);
@@ -329,7 +357,7 @@ public class SandboxMain : MonoBehaviour
         //await okButton.GetComponent<RectTransform>().DOMoveY(10.2f, 3).WithCancellation(CancellationToken.None);
         //Debug.Log("AGAIN END MOVE");
 
-        Debug.Log(Test().GetType().FullName);
+        //Debug.Log(Test().GetType().FullName);
 
 
 
@@ -383,11 +411,10 @@ public class SandboxMain : MonoBehaviour
         //{
 
 
-        okButton.onClick.AddListener(UniTask.UnityAction(async () =>
+        //foreach (var (type, size) in TaskPool.GetCacheSizeInfo())
-        {
+        //{
-            await UniTask.Yield();
+        //    Debug.Log(type + ":" + size);
-            Debug.Log("Yeha");
+        //}
-        }));
 
 
         //}).Forget();
@@ -405,7 +432,7 @@ public class SandboxMain : MonoBehaviour
         //await UniTask.Delay(TimeSpan.FromSeconds(1));
 
 
-        _ = ReturnToMainThreadTest();
+        // _ = ReturnToMainThreadTest();
 
         //GameObject.Destroy(this.gameObject);