486 lines
16 KiB
C#
486 lines
16 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.Collections;
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using System.Runtime.ExceptionServices;
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using System.Threading;
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using System.Threading.Tasks;
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using UniRx.Async.Internal;
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namespace UniRx.Async
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{
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public static partial class UniTaskExtensions
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{
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/// <summary>
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/// Convert UniTask -> UniTask[AsyncUnit].
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/// </summary>
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public static UniTask<AsyncUnit> AsAsyncUnitUniTask(this UniTask task)
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{
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// use implicit conversion
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return task;
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}
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/// <summary>
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/// Convert Task[T] -> UniTask[T].
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/// </summary>
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public static UniTask<T> AsUniTask<T>(this Task<T> task, bool useCurrentSynchronizationContext = true)
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{
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var promise = new UniTaskCompletionSource<T>();
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task.ContinueWith((x, state) =>
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{
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var p = (UniTaskCompletionSource<T>)state;
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switch (x.Status)
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{
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case TaskStatus.Canceled:
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p.TrySetCanceled();
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break;
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case TaskStatus.Faulted:
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p.TrySetException(x.Exception);
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break;
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case TaskStatus.RanToCompletion:
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p.TrySetResult(x.Result);
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break;
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default:
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throw new NotSupportedException();
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}
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}, promise, useCurrentSynchronizationContext ? TaskScheduler.FromCurrentSynchronizationContext() : TaskScheduler.Current);
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return new UniTask<T>(promise);
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}
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/// <summary>
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/// Convert Task -> UniTask.
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/// </summary>
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public static UniTask AsUniTask(this Task task, bool useCurrentSynchronizationContext = true)
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{
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var promise = new UniTaskCompletionSource<AsyncUnit>();
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task.ContinueWith((x, state) =>
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{
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var p = (UniTaskCompletionSource<AsyncUnit>)state;
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switch (x.Status)
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{
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case TaskStatus.Canceled:
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p.TrySetCanceled();
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break;
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case TaskStatus.Faulted:
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p.TrySetException(x.Exception);
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break;
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case TaskStatus.RanToCompletion:
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p.TrySetResult(default(AsyncUnit));
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break;
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default:
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throw new NotSupportedException();
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}
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}, promise, useCurrentSynchronizationContext ? TaskScheduler.FromCurrentSynchronizationContext() : TaskScheduler.Current);
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return new UniTask(promise);
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}
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public static IEnumerator ToCoroutine<T>(this UniTask<T> task, Action<T> resultHandler = null, Action<Exception> exceptionHandler = null)
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{
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return new ToCoroutineEnumerator<T>(task, resultHandler, exceptionHandler);
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}
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public static IEnumerator ToCoroutine(this UniTask task, Action<Exception> exceptionHandler = null)
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{
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return new ToCoroutineEnumerator(task, exceptionHandler);
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}
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public static UniTask Timeout(this UniTask task, TimeSpan timeout, bool ignoreTimeScale = true, PlayerLoopTiming timeoutCheckTiming = PlayerLoopTiming.Update, CancellationTokenSource taskCancellationTokenSource = null)
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{
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return Timeout(task.AsAsyncUnitUniTask(), timeout, ignoreTimeScale, timeoutCheckTiming, taskCancellationTokenSource);
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}
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public static async UniTask<T> Timeout<T>(this UniTask<T> task, TimeSpan timeout, bool ignoreTimeScale = true, PlayerLoopTiming timeoutCheckTiming = PlayerLoopTiming.Update, CancellationTokenSource taskCancellationTokenSource = null)
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{
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// left, right both suppress operation canceled exception.
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var delayCancellationTokenSource = new CancellationTokenSource();
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var timeoutTask = (UniTask)UniTask.Delay(timeout, ignoreTimeScale, timeoutCheckTiming).SuppressCancellationThrow();
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var (hasValue, value) = await UniTask.WhenAny(task.SuppressCancellationThrow(), timeoutTask);
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if (!hasValue)
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{
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if (taskCancellationTokenSource != null)
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{
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taskCancellationTokenSource.Cancel();
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taskCancellationTokenSource.Dispose();
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}
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throw new TimeoutException("Exceed Timeout:" + timeout);
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}
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else
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{
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delayCancellationTokenSource.Cancel();
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delayCancellationTokenSource.Dispose();
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}
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if (value.IsCanceled)
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{
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Error.ThrowOperationCanceledException();
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}
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return value.Result;
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}
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/// <summary>
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/// Timeout with suppress OperationCanceledException. Returns (bool, IsCacneled).
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/// </summary>
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public static async UniTask<bool> TimeoutWithoutException(this UniTask task, TimeSpan timeout, bool ignoreTimeScale = true, PlayerLoopTiming timeoutCheckTiming = PlayerLoopTiming.Update, CancellationTokenSource taskCancellationTokenSource = null)
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{
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var v = await TimeoutWithoutException(task.AsAsyncUnitUniTask(), timeout, ignoreTimeScale, timeoutCheckTiming, taskCancellationTokenSource);
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return v.IsTimeout;
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}
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/// <summary>
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/// Timeout with suppress OperationCanceledException. Returns (bool IsTimeout, T Result).
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/// </summary>
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public static async UniTask<(bool IsTimeout, T Result)> TimeoutWithoutException<T>(this UniTask<T> task, TimeSpan timeout, bool ignoreTimeScale = true, PlayerLoopTiming timeoutCheckTiming = PlayerLoopTiming.Update, CancellationTokenSource taskCancellationTokenSource = null)
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{
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// left, right both suppress operation canceled exception.
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var delayCancellationTokenSource = new CancellationTokenSource();
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var timeoutTask = (UniTask)UniTask.Delay(timeout, ignoreTimeScale, timeoutCheckTiming).SuppressCancellationThrow();
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var (hasValue, value) = await UniTask.WhenAny(task.SuppressCancellationThrow(), timeoutTask);
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if (!hasValue)
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{
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if (taskCancellationTokenSource != null)
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{
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taskCancellationTokenSource.Cancel();
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taskCancellationTokenSource.Dispose();
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}
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return (true, default(T));
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}
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else
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{
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delayCancellationTokenSource.Cancel();
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delayCancellationTokenSource.Dispose();
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}
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if (value.IsCanceled)
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{
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Error.ThrowOperationCanceledException();
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}
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return (false, value.Result);
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}
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public static void Forget(this UniTask task)
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{
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ForgetCore(task).Forget();
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}
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public static void Forget(this UniTask task, Action<Exception> exceptionHandler, bool handleExceptionOnMainThread = true)
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{
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if (exceptionHandler == null)
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{
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ForgetCore(task).Forget();
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}
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else
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{
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ForgetCoreWithCatch(task, exceptionHandler, handleExceptionOnMainThread).Forget();
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}
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}
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// UniTask to UniTaskVoid
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static async UniTaskVoid ForgetCore(UniTask task)
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{
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await task;
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}
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static async UniTaskVoid ForgetCoreWithCatch(UniTask task, Action<Exception> exceptionHandler, bool handleExceptionOnMainThread)
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{
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try
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{
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await task;
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}
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catch (Exception ex)
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{
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try
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{
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if (handleExceptionOnMainThread)
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{
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await UniTask.SwitchToMainThread();
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}
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exceptionHandler(ex);
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}
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catch (Exception ex2)
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{
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UniTaskScheduler.PublishUnobservedTaskException(ex2);
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}
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}
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}
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public static void Forget<T>(this UniTask<T> task)
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{
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ForgetCore(task).Forget();
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}
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public static void Forget<T>(this UniTask<T> task, Action<Exception> exceptionHandler, bool handleExceptionOnMainThread = true)
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{
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if (exceptionHandler == null)
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{
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ForgetCore(task).Forget();
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}
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else
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{
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ForgetCoreWithCatch(task, exceptionHandler, handleExceptionOnMainThread).Forget();
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}
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}
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// UniTask to UniTaskVoid
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static async UniTaskVoid ForgetCore<T>(UniTask<T> task)
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{
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await task;
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}
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static async UniTaskVoid ForgetCoreWithCatch<T>(UniTask<T> task, Action<Exception> exceptionHandler, bool handleExceptionOnMainThread)
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{
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try
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{
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await task;
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}
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catch (Exception ex)
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{
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try
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{
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if (handleExceptionOnMainThread)
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{
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await UniTask.SwitchToMainThread();
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}
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exceptionHandler(ex);
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}
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catch (Exception ex2)
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{
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UniTaskScheduler.PublishUnobservedTaskException(ex2);
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}
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}
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}
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public static async UniTask ContinueWith<T>(this UniTask<T> task, Action<T> continuationFunction)
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{
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continuationFunction(await task);
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}
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public static async UniTask ContinueWith<T>(this UniTask<T> task, Func<T, UniTask> continuationFunction)
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{
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await continuationFunction(await task);
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}
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public static async UniTask<TR> ContinueWith<T, TR>(this UniTask<T> task, Func<T, TR> continuationFunction)
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{
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return continuationFunction(await task);
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}
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public static async UniTask<TR> ContinueWith<T, TR>(this UniTask<T> task, Func<T, UniTask<TR>> continuationFunction)
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{
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return await continuationFunction(await task);
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}
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public static async UniTask ContinueWith(this UniTask task, Action continuationFunction)
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{
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await task;
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continuationFunction();
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}
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public static async UniTask ContinueWith(this UniTask task, Func<UniTask> continuationFunction)
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{
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await task;
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await continuationFunction();
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}
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public static async UniTask<T> ContinueWith<T>(this UniTask task, Func<T> continuationFunction)
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{
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await task;
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return continuationFunction();
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}
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public static async UniTask<T> ContinueWith<T>(this UniTask task, Func<UniTask<T>> continuationFunction)
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{
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await task;
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return await continuationFunction();
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}
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public static async UniTask ConfigureAwait(this Task task, PlayerLoopTiming timing)
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{
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await task.ConfigureAwait(false);
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await UniTask.Yield(timing);
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}
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public static async UniTask<T> ConfigureAwait<T>(this Task<T> task, PlayerLoopTiming timing)
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{
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var v = await task.ConfigureAwait(false);
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await UniTask.Yield(timing);
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return v;
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}
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public static async UniTask ConfigureAwait(this UniTask task, PlayerLoopTiming timing)
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{
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await task;
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await UniTask.Yield(timing);
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}
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public static async UniTask<T> ConfigureAwait<T>(this UniTask<T> task, PlayerLoopTiming timing)
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{
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var v = await task;
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await UniTask.Yield(timing);
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return v;
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}
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public static async UniTask<T> Unwrap<T>(this UniTask<UniTask<T>> task)
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{
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return await await task;
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}
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public static async UniTask Unwrap<T>(this UniTask<UniTask> task)
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{
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await await task;
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}
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class ToCoroutineEnumerator : IEnumerator
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{
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bool completed;
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UniTask task;
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Action<Exception> exceptionHandler = null;
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bool isStarted = false;
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ExceptionDispatchInfo exception;
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public ToCoroutineEnumerator(UniTask task, Action<Exception> exceptionHandler)
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{
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completed = false;
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this.exceptionHandler = exceptionHandler;
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this.task = task;
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}
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async UniTaskVoid RunTask(UniTask task)
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{
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try
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{
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await task;
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}
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catch (Exception ex)
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{
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if (exceptionHandler != null)
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{
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exceptionHandler(ex);
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}
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else
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{
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this.exception = ExceptionDispatchInfo.Capture(ex);
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}
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}
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finally
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{
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completed = true;
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}
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}
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public object Current => null;
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public bool MoveNext()
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{
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if (!isStarted)
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{
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isStarted = true;
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RunTask(task).Forget();
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}
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if (exception != null)
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{
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// throw exception on iterator (main)thread.
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// unfortunately unity test-runner can not handle throw exception on hand-write IEnumerator.MoveNext.
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UnityEngine.Debug.LogException(exception.SourceException);
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}
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return !completed;
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}
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public void Reset()
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{
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}
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}
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class ToCoroutineEnumerator<T> : IEnumerator
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{
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bool completed;
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Action<T> resultHandler = null;
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Action<Exception> exceptionHandler = null;
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bool isStarted = false;
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UniTask<T> task;
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object current = null;
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ExceptionDispatchInfo exception;
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public ToCoroutineEnumerator(UniTask<T> task, Action<T> resultHandler, Action<Exception> exceptionHandler)
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{
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completed = false;
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this.task = task;
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this.resultHandler = resultHandler;
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this.exceptionHandler = exceptionHandler;
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}
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async UniTaskVoid RunTask(UniTask<T> task)
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{
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try
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{
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var value = await task;
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current = value;
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if (resultHandler != null)
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{
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resultHandler(value);
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}
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}
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catch (Exception ex)
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{
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if (exceptionHandler != null)
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{
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exceptionHandler(ex);
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}
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else
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{
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this.exception = ExceptionDispatchInfo.Capture(ex);
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}
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}
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finally
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{
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completed = true;
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}
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}
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public object Current => current;
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public bool MoveNext()
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{
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if (!isStarted)
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{
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isStarted = true;
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RunTask(task).Forget();
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}
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if (exception != null)
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{
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// throw exception on iterator (main)thread.
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// unfortunately unity test-runner can not handle throw exception on hand-write IEnumerator.MoveNext.
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UnityEngine.Debug.LogException(exception.SourceException);
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}
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return !completed;
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}
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public void Reset()
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{
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}
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}
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}
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}
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#endif |