UniRx 에셋 추가

Gameton-06/Assets/Plugins/UniRx/Scripts/Operators/Select.cs

@@ -0,0 +1,146 @@
+using System;
+
+namespace UniRx.Operators
+{
+    internal interface ISelect<TR>
+    {
+        // IObservable<TR2> CombineSelector<TR2>(Func<TR, TR2> selector);
+        IObservable<TR> CombinePredicate(Func<TR, bool> predicate);
+    }
+
+    internal class SelectObservable<T, TR> : OperatorObservableBase<TR>, ISelect<TR>
+    {
+        readonly IObservable<T> source;
+        readonly Func<T, TR> selector;
+        readonly Func<T, int, TR> selectorWithIndex;
+
+        public SelectObservable(IObservable<T> source, Func<T, TR> selector)
+            : base(source.IsRequiredSubscribeOnCurrentThread())
+        {
+            this.source = source;
+            this.selector = selector;
+        }
+
+        public SelectObservable(IObservable<T> source, Func<T, int, TR> selector)
+            : base(source.IsRequiredSubscribeOnCurrentThread())
+        {
+            this.source = source;
+            this.selectorWithIndex = selector;
+        }
+
+        // sometimes cause "which no ahead of time (AOT) code was generated." on IL2CPP...
+
+        //public IObservable<TR2> CombineSelector<TR2>(Func<TR, TR2> combineSelector)
+        //{
+        //    if (this.selector != null)
+        //    {
+        //        return new Select<T, TR2>(source, x => combineSelector(this.selector(x)));
+        //    }
+        //    else
+        //    {
+        //        return new Select<TR, TR2>(this, combineSelector);
+        //    }
+        //}
+
+        public IObservable<TR> CombinePredicate(Func<TR, bool> predicate)
+        {
+            if (this.selector != null)
+            {
+                return new SelectWhereObservable<T, TR>(this.source, this.selector, predicate);
+            }
+            else
+            {
+                return new WhereObservable<TR>(this, predicate); // can't combine
+            }
+        }
+
+        protected override IDisposable SubscribeCore(IObserver<TR> observer, IDisposable cancel)
+        {
+            if (selector != null)
+            {
+                return source.Subscribe(new Select(this, observer, cancel));
+            }
+            else
+            {
+                return source.Subscribe(new Select_(this, observer, cancel));
+            }
+        }
+
+        class Select : OperatorObserverBase<T, TR>
+        {
+            readonly SelectObservable<T, TR> parent;
+
+            public Select(SelectObservable<T, TR> parent, IObserver<TR> observer, IDisposable cancel)
+                : base(observer, cancel)
+            {
+                this.parent = parent;
+            }
+
+            public override void OnNext(T value)
+            {
+                var v = default(TR);
+                try
+                {
+                    v = parent.selector(value);
+                }
+                catch (Exception ex)
+                {
+                    try { observer.OnError(ex); } finally { Dispose(); }
+                    return;
+                }
+
+                observer.OnNext(v);
+            }
+
+            public override void OnError(Exception error)
+            {
+                try { observer.OnError(error); } finally { Dispose(); }
+            }
+
+            public override void OnCompleted()
+            {
+                try { observer.OnCompleted(); } finally { Dispose(); }
+            }
+        }
+
+        // with Index
+        class Select_ : OperatorObserverBase<T, TR>
+        {
+            readonly SelectObservable<T, TR> parent;
+            int index;
+
+            public Select_(SelectObservable<T, TR> parent, IObserver<TR> observer, IDisposable cancel)
+                : base(observer, cancel)
+            {
+                this.parent = parent;
+                this.index = 0;
+            }
+
+            public override void OnNext(T value)
+            {
+                var v = default(TR);
+                try
+                {
+                    v = parent.selectorWithIndex(value, index++);
+                }
+                catch (Exception ex)
+                {
+                    try { observer.OnError(ex); } finally { Dispose(); }
+                    return;
+                }
+
+                observer.OnNext(v);
+            }
+
+            public override void OnError(Exception error)
+            {
+                try { observer.OnError(error); } finally { Dispose(); }
+            }
+
+            public override void OnCompleted()
+            {
+                try { observer.OnCompleted(); } finally { Dispose(); }
+            }
+        }
+    }
+}