1 files changed, 0 insertions, 127 deletions
diff --git a/Rx.NET/System.Reactive.Linq/Reactive/EventPatternSourceBase.cs b/Rx.NET/System.Reactive.Linq/Reactive/EventPatternSourceBase.cs
deleted file mode 100644
index b3a7754..0000000
--- a/Rx.NET/System.Reactive.Linq/Reactive/EventPatternSourceBase.cs
+++ /dev/null
@@ -1,127 +0,0 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
-
-using System.Collections.Generic;
-
-namespace System.Reactive
-{
-    /// <summary>
-    /// Base class for classes that expose an observable sequence as a well-known event pattern (sender, event arguments).
-    /// Contains functionality to maintain a map of event handler delegates to observable sequence subscriptions. Subclasses
-    /// should only add an event with custom add and remove methods calling into the base class's operations.
-    /// </summary>
-    /// <typeparam name="TSender">The type of the sender that raises the event.</typeparam>
-    /// <typeparam name="TEventArgs">The type of the event data generated by the event.</typeparam>
-    public abstract class EventPatternSourceBase<TSender, TEventArgs>
-#if !NO_EVENTARGS_CONSTRAINT
-        where TEventArgs : EventArgs
-#endif
-    {
-        private readonly IObservable<EventPattern<TSender, TEventArgs>> _source;
-        private readonly Dictionary<Delegate, Stack<IDisposable>> _subscriptions;
-        private readonly Action<Action<TSender, TEventArgs>, /*object,*/ EventPattern<TSender, TEventArgs>> _invokeHandler;
-
-        /// <summary>
-        /// Creates a new event pattern source.
-        /// </summary>
-        /// <param name="source">Source sequence to expose as an event.</param>
-        /// <param name="invokeHandler">Delegate used to invoke the event for each element of the sequence.</param>
-        /// <exception cref="ArgumentNullException"><paramref name="source"/> or <paramref name="invokeHandler"/> is null.</exception>
-        protected EventPatternSourceBase(IObservable<EventPattern<TSender, TEventArgs>> source, Action<Action<TSender, TEventArgs>, /*object,*/ EventPattern<TSender, TEventArgs>> invokeHandler)
-        {
-            if (source == null)
-                throw new ArgumentNullException("source");
-            if (invokeHandler == null)
-                throw new ArgumentNullException("invokeHandler");
-
-            _source = source;
-            _invokeHandler = invokeHandler;
-            _subscriptions = new Dictionary<Delegate, Stack<IDisposable>>();
-        }
-
-        /// <summary>
-        /// Adds the specified event handler, causing a subscription to the underlying source.
-        /// </summary>
-        /// <param name="handler">Event handler to add. The same delegate should be passed to the Remove operation in order to remove the event handler.</param>
-        /// <param name="invoke">Invocation delegate to raise the event in the derived class.</param>
-        /// <exception cref="ArgumentNullException"><paramref name="handler"/> or <paramref name="invoke"/> is null.</exception>
-        protected void Add(Delegate handler, Action<TSender, TEventArgs> invoke)
-        {
-            if (handler == null)
-                throw new ArgumentNullException("handler");
-            if (invoke == null)
-                throw new ArgumentNullException("invoke");
-
-            var gate = new object();
-            var isAdded = false;
-            var isDone = false;
-
-            var remove = new Action(() =>
-            {
-                lock (gate)
-                {
-                    if (isAdded)
-                        Remove(handler);
-                    else
-                        isDone = true;
-                }
-            });
-
-            //
-            // [OK] Use of unsafe Subscribe: non-pretentious wrapper of an observable in an event; exceptions can occur during +=.
-            //
-            var d = _source.Subscribe/*Unsafe*/(
-                x => _invokeHandler(invoke, /*this,*/ x),
-                ex => { remove(); ex.Throw(); },
-                () => remove()
-            );
-
-            lock (gate)
-            {
-                if (!isDone)
-                {
-                    Add(handler, d);
-                    isAdded = true;
-                }
-            }
-        }
-
-        private void Add(Delegate handler, IDisposable disposable)
-        {
-            lock (_subscriptions)
-            {
-                var l = new Stack<IDisposable>();
-                if (!_subscriptions.TryGetValue(handler, out l))
-                    _subscriptions[handler] = l = new Stack<IDisposable>();
-
-                l.Push(disposable);
-            }
-        }
-
-        /// <summary>
-        /// Removes the specified event handler, causing a disposal of the corresponding subscription to the underlying source that was created during the Add operation.
-        /// </summary>
-        /// <param name="handler">Event handler to remove. This should be the same delegate as one that was passed to the Add operation.</param>
-        /// <exception cref="ArgumentNullException"><paramref name="handler"/> is null.</exception>
-        protected void Remove(Delegate handler)
-        {
-            if (handler == null)
-                throw new ArgumentNullException("handler");
-
-            var d = default(IDisposable);
-
-            lock (_subscriptions)
-            {
-                var l = new Stack<IDisposable>();
-                if (_subscriptions.TryGetValue(handler, out l))
-                {
-                    d = l.Pop();
-                    if (l.Count == 0)
-                        _subscriptions.Remove(handler);
-                }
-            }
-
-            if (d != null)
-                d.Dispose();
-        }
-    }
-}