121 lines
3.8 KiB
C#
121 lines
3.8 KiB
C#
#if CSHARP_7_OR_LATER || (UNITY_2018_3_OR_NEWER && (NET_STANDARD_2_0 || NET_4_6))
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#pragma warning disable CS1591 // Missing XML comment for publicly visible type or member
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using System;
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using System.Threading;
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namespace UniRx.Async
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{
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public partial struct UniTask
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{
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static readonly UniTask CanceledUniTask = new Func<UniTask>(() =>
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{
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var promise = new UniTaskCompletionSource<AsyncUnit>();
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promise.TrySetCanceled();
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promise.MarkHandled();
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return new UniTask(promise);
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})();
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public static UniTask CompletedTask
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{
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get
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{
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return new UniTask();
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}
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}
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public static UniTask FromException(Exception ex)
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{
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var promise = new UniTaskCompletionSource<AsyncUnit>();
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promise.TrySetException(ex);
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promise.MarkHandled();
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return new UniTask(promise);
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}
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public static UniTask<T> FromException<T>(Exception ex)
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{
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var promise = new UniTaskCompletionSource<T>();
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promise.TrySetException(ex);
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promise.MarkHandled();
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return new UniTask<T>(promise);
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}
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public static UniTask<T> FromResult<T>(T value)
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{
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return new UniTask<T>(value);
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}
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public static UniTask FromCanceled()
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{
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return CanceledUniTask;
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}
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public static UniTask<T> FromCanceled<T>()
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{
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return CanceledUniTaskCache<T>.Task;
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}
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public static UniTask FromCanceled(CancellationToken token)
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{
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var promise = new UniTaskCompletionSource<AsyncUnit>();
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promise.TrySetException(new OperationCanceledException(token));
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promise.MarkHandled();
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return new UniTask(promise);
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}
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public static UniTask<T> FromCanceled<T>(CancellationToken token)
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{
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var promise = new UniTaskCompletionSource<T>();
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promise.TrySetException(new OperationCanceledException(token));
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promise.MarkHandled();
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return new UniTask<T>(promise);
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}
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/// <summary>shorthand of new UniTask[T](Func[UniTask[T]] factory)</summary>
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public static UniTask<T> Lazy<T>(Func<UniTask<T>> factory)
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{
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return new UniTask<T>(factory);
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}
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/// <summary>
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/// helper of create add UniTaskVoid to delegate.
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/// For example: FooEvent += () => UniTask.Void(async () => { /* */ })
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/// </summary>
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public static void Void(Func<UniTask> asyncAction)
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{
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asyncAction().Forget();
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}
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/// <summary>
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/// helper of create add UniTaskVoid to delegate.
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/// For example: FooEvent += (sender, e) => UniTask.Void(async arg => { /* */ }, (sender, e))
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/// </summary>
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public static void Void<T>(Func<T, UniTask> asyncAction, T state)
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{
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asyncAction(state).Forget();
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}
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static class CanceledUniTaskCache<T>
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{
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public static readonly UniTask<T> Task;
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static CanceledUniTaskCache()
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{
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var promise = new UniTaskCompletionSource<T>();
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promise.TrySetCanceled();
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promise.MarkHandled();
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Task = new UniTask<T>(promise);
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}
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}
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}
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internal static class CompletedTasks
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{
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public static readonly UniTask<bool> True = UniTask.FromResult(true);
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public static readonly UniTask<bool> False = UniTask.FromResult(false);
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public static readonly UniTask<int> Zero = UniTask.FromResult(0);
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public static readonly UniTask<int> MinusOne = UniTask.FromResult(-1);
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public static readonly UniTask<int> One = UniTask.FromResult(1);
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}
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}
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#endif |