UniRx 에셋 추가
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217
Gameton-06/Assets/Plugins/UniRx/Scripts/Operators/Catch.cs
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217
Gameton-06/Assets/Plugins/UniRx/Scripts/Operators/Catch.cs
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using System;
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using System.Collections.Generic;
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namespace UniRx.Operators
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{
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internal class CatchObservable<T, TException> : OperatorObservableBase<T>
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where TException : Exception
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{
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readonly IObservable<T> source;
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readonly Func<TException, IObservable<T>> errorHandler;
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public CatchObservable(IObservable<T> source, Func<TException, IObservable<T>> errorHandler)
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: base(source.IsRequiredSubscribeOnCurrentThread())
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{
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this.source = source;
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this.errorHandler = errorHandler;
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}
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protected override IDisposable SubscribeCore(IObserver<T> observer, IDisposable cancel)
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{
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return new Catch(this, observer, cancel).Run();
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}
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class Catch : OperatorObserverBase<T, T>
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{
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readonly CatchObservable<T, TException> parent;
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SingleAssignmentDisposable sourceSubscription;
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SingleAssignmentDisposable exceptionSubscription;
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public Catch(CatchObservable<T, TException> parent, IObserver<T> observer, IDisposable cancel)
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: base(observer, cancel)
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{
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this.parent = parent;
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}
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public IDisposable Run()
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{
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this.sourceSubscription = new SingleAssignmentDisposable();
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this.exceptionSubscription = new SingleAssignmentDisposable();
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this.sourceSubscription.Disposable = parent.source.Subscribe(this);
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return StableCompositeDisposable.Create(sourceSubscription, exceptionSubscription);
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}
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public override void OnNext(T value)
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{
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base.observer.OnNext(value);
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}
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public override void OnError(Exception error)
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{
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var e = error as TException;
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if (e != null)
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{
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IObservable<T> next;
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try
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{
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if (parent.errorHandler == Stubs.CatchIgnore<T>)
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{
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next = Observable.Empty<T>(); // for avoid iOS AOT
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}
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else
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{
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next = parent.errorHandler(e);
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}
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}
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catch (Exception ex)
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{
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try { observer.OnError(ex); } finally { Dispose(); };
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return;
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}
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exceptionSubscription.Disposable = next.Subscribe(observer);
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}
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else
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{
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try { observer.OnError(error); } finally { Dispose(); };
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return;
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}
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}
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public override void OnCompleted()
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{
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try { observer.OnCompleted(); } finally { Dispose(); };
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}
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}
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}
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internal class CatchObservable<T> : OperatorObservableBase<T>
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{
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readonly IEnumerable<IObservable<T>> sources;
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public CatchObservable(IEnumerable<IObservable<T>> sources)
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: base(true)
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{
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this.sources = sources;
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}
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protected override IDisposable SubscribeCore(IObserver<T> observer, IDisposable cancel)
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{
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return new Catch(this, observer, cancel).Run();
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}
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class Catch : OperatorObserverBase<T, T>
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{
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readonly CatchObservable<T> parent;
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readonly object gate = new object();
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bool isDisposed;
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IEnumerator<IObservable<T>> e;
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SerialDisposable subscription;
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Exception lastException;
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Action nextSelf;
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public Catch(CatchObservable<T> parent, IObserver<T> observer, IDisposable cancel)
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: base(observer, cancel)
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{
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this.parent = parent;
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}
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public IDisposable Run()
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{
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isDisposed = false;
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e = parent.sources.GetEnumerator();
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subscription = new SerialDisposable();
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var schedule = Scheduler.DefaultSchedulers.TailRecursion.Schedule(RecursiveRun);
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return StableCompositeDisposable.Create(schedule, subscription, Disposable.Create(() =>
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{
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lock (gate)
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{
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this.isDisposed = true;
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this.e.Dispose();
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}
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}));
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}
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void RecursiveRun(Action self)
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{
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lock (gate)
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{
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nextSelf = self;
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if (isDisposed) return;
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var current = default(IObservable<T>);
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var hasNext = false;
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var ex = default(Exception);
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try
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{
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hasNext = e.MoveNext();
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if (hasNext)
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{
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current = e.Current;
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if (current == null) throw new InvalidOperationException("sequence is null.");
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}
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else
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{
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e.Dispose();
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}
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}
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catch (Exception exception)
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{
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ex = exception;
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e.Dispose();
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}
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if (ex != null)
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{
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try { observer.OnError(ex); }
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finally { Dispose(); }
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return;
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}
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if (!hasNext)
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{
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if (lastException != null)
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{
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try { observer.OnError(lastException); }
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finally { Dispose(); }
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}
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else
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{
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try { observer.OnCompleted(); }
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finally { Dispose(); }
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}
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return;
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}
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var source = current;
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var d = new SingleAssignmentDisposable();
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subscription.Disposable = d;
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d.Disposable = source.Subscribe(this);
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}
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}
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public override void OnNext(T value)
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{
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base.observer.OnNext(value);
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}
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public override void OnError(Exception error)
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{
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lastException = error;
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nextSelf();
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}
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public override void OnCompleted()
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{
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try { observer.OnCompleted(); }
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finally { Dispose(); }
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return;
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}
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}
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}
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}
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