From 74a538f6725ebc83efda4bb07d5747e8a6359e19 Mon Sep 17 00:00:00 2001
From: Atsushi Eno <atsushieno@gmail.com>
Date: Mon, 16 Dec 2013 22:30:03 +0900
Subject: Import Official Rx 2.2 (3ebdd2e09991)

I made changes from the original source tree to match the older tree
so that we don't have to make several changes to project tree generator.
(There is actually no new sources in Rx so hopefully we can just reuse
existing modifications in the tree).
---
 .../Reactive/Linq/Observable/GroupBy.cs                  | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

(limited to 'Rx/NET/Source/System.Reactive.Linq/Reactive/Linq/Observable/GroupBy.cs')

diff --git a/Rx/NET/Source/System.Reactive.Linq/Reactive/Linq/Observable/GroupBy.cs b/Rx/NET/Source/System.Reactive.Linq/Reactive/Linq/Observable/GroupBy.cs
index 1e64100..4f91030 100644
--- a/Rx/NET/Source/System.Reactive.Linq/Reactive/Linq/Observable/GroupBy.cs
+++ b/Rx/NET/Source/System.Reactive.Linq/Reactive/Linq/Observable/GroupBy.cs
@@ -7,20 +7,22 @@ using System.Linq;
 using System.Reactive.Disposables;
 using System.Reactive.Subjects;
 
-namespace System.Reactive.Linq.Observαble
+namespace System.Reactive.Linq.ObservableImpl
 {
     class GroupBy<TSource, TKey, TElement> : Producer<IGroupedObservable<TKey, TElement>>
     {
         private readonly IObservable<TSource> _source;
         private readonly Func<TSource, TKey> _keySelector;
         private readonly Func<TSource, TElement> _elementSelector;
+        private readonly int? _capacity;
         private readonly IEqualityComparer<TKey> _comparer;
 
-        public GroupBy(IObservable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector, IEqualityComparer<TKey> comparer)
+        public GroupBy(IObservable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector, int? capacity, IEqualityComparer<TKey> comparer)
         {
             _source = source;
             _keySelector = keySelector;
             _elementSelector = elementSelector;
+            _capacity = capacity;
             _comparer = comparer;
         }
 
@@ -49,7 +51,15 @@ namespace System.Reactive.Linq.Observαble
                 : base(observer, cancel)
             {
                 _parent = parent;
-                _map = new Dictionary<TKey, ISubject<TElement>>(_parent._comparer);
+
+                if (_parent._capacity.HasValue)
+                {
+                    _map = new Dictionary<TKey, ISubject<TElement>>(_parent._capacity.Value, _parent._comparer);
+                }
+                else
+                {
+                    _map = new Dictionary<TKey, ISubject<TElement>>(_parent._comparer);
+                }
             }
 
             public void OnNext(TSource value)
-- 
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