import 2b5dbddd740b, new directory structure in the original rx.

1 files changed, 138 insertions, 0 deletions

diff --git a/Rx/NET/Source/System.Reactive.Linq/Reactive/Linq/Observable/Select.cs b/Rx/NET/Source/System.Reactive.Linq/Reactive/Linq/Observable/Select.cs
new file mode 100644
index 0000000..e853210
--- /dev/null
+++ b/Rx/NET/Source/System.Reactive.Linq/Reactive/Linq/Observable/Select.cs
@@ -0,0 +1,138 @@
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
+
+#if !NO_PERF
+using System;
+
+namespace System.Reactive.Linq.Observαble
+{
+    abstract class Select<TResult> : Producer<TResult>
+    {
+        public abstract IObservable<TResult2> Ω<TResult2>(Func<TResult, TResult2> selector);
+    }
+
+    class Select<TSource, TResult> : Select<TResult>
+    {
+        private readonly IObservable<TSource> _source;
+        private readonly Func<TSource, TResult> _selector;
+        private readonly Func<TSource, int, TResult> _selectorI;
+
+        public Select(IObservable<TSource> source, Func<TSource, TResult> selector)
+        {
+            _source = source;
+            _selector = selector;
+        }
+
+        public Select(IObservable<TSource> source, Func<TSource, int, TResult> selector)
+        {
+            _source = source;
+            _selectorI = selector;
+        }
+
+        public override IObservable<TResult2> Ω<TResult2>(Func<TResult, TResult2> selector)
+        {
+            if (_selector != null)
+                return new Select<TSource, TResult2>(_source, x => selector(_selector(x)));
+            else
+                return new Select<TResult, TResult2>(this, selector);
+        }
+
+        protected override IDisposable Run(IObserver<TResult> observer, IDisposable cancel, Action<IDisposable> setSink)
+        {
+            if (_selector != null)
+            {
+                var sink = new _(this, observer, cancel);
+                setSink(sink);
+                return _source.SubscribeSafe(sink);
+            }
+            else
+            {
+                var sink = new τ(this, observer, cancel);
+                setSink(sink);
+                return _source.SubscribeSafe(sink);
+            }
+        }
+
+        class _ : Sink<TResult>, IObserver<TSource>
+        {
+            private readonly Select<TSource, TResult> _parent;
+
+            public _(Select<TSource, TResult> parent, IObserver<TResult> observer, IDisposable cancel)
+                : base(observer, cancel)
+            {
+                _parent = parent;
+            }
+
+            public void OnNext(TSource value)
+            {
+                var result = default(TResult);
+                try
+                {
+                    result = _parent._selector(value);
+                }
+                catch (Exception exception)
+                {
+                    base._observer.OnError(exception);
+                    base.Dispose();
+                    return;
+                }
+
+                base._observer.OnNext(result);
+            }
+
+            public void OnError(Exception error)
+            {
+                base._observer.OnError(error);
+                base.Dispose();
+            }
+
+            public void OnCompleted()
+            {
+                base._observer.OnCompleted();
+                base.Dispose();
+            }
+        }
+
+        class τ : Sink<TResult>, IObserver<TSource>
+        {
+            private readonly Select<TSource, TResult> _parent;
+            private int _index;
+
+            public τ(Select<TSource, TResult> parent, IObserver<TResult> observer, IDisposable cancel)
+                : base(observer, cancel)
+            {
+                _parent = parent;
+                _index = 0;
+            }
+
+            public void OnNext(TSource value)
+            {
+                var result = default(TResult);
+                try
+                {
+                    result = _parent._selectorI(value, checked(_index++));
+                }
+                catch (Exception exception)
+                {
+                    base._observer.OnError(exception);
+                    base.Dispose();
+                    return;
+                }
+
+                base._observer.OnNext(result);
+            }
+
+            public void OnError(Exception error)
+            {
+                base._observer.OnError(error);
+                base.Dispose();
+            }
+
+            public void OnCompleted()
+            {
+                base._observer.OnCompleted();
+                base.Dispose();
+            }
+        }
+    }
+}
+#endif
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