30         public bool Remove(TLeft left)  in Remove()  argument
33             return Remove(left, out tmp);  in Remove()
36         public bool TryExchange(TLeft left, TRight newRight, out TRight oldRight)  in TryExchange()  argument
40                 if(!Remove(left, out oldRight))  in TryExchange()
44                 Add(left, newRight);  in TryExchange()
62         public bool Remove(TLeft left, out TRight right)  in Remove()  argument
67                 if(!Exists(left))  in Remove()
71                 right = lefts[left];  in Remove()
72                 RemoveExistingMapping(left, right);  in Remove()
77         public bool Remove(TRight right, out TLeft left)  in Remove()  argument
79             left = default(TLeft);  in Remove()
86                 left = rights[right];  in Remove()
87                 RemoveExistingMapping(left, right);  in Remove()
105         public void Add(TLeft left, TRight right)  in Add()  argument
109                 lefts.Add(left, right);  in Add()
110                 rights.Add(right, left);  in Add()
113             OnItemAdded(left, right);  in Add()
116         public bool TryGetValue(TLeft left, out TRight right)  in TryGetValue()  argument
118             return lefts.TryGetValue(left, out right);  in TryGetValue()
121         public bool TryGetValue(TRight right, out TLeft left)  in TryGetValue()  argument
123             return rights.TryGetValue(right, out left);  in TryGetValue()
126         public bool ExistsEither(TLeft left, TRight right)  in ExistsEither()  argument
130                 return Exists(left) || Exists(right);  in ExistsEither()
134         public bool Exists(TLeft left)  in Exists()  argument
136             return lefts.ContainsKey(left);  in Exists()
173         private void RemoveExistingMapping(TLeft left, TRight right)  in RemoveExistingMapping()  argument
175             lefts.Remove(left);  in RemoveExistingMapping()
177             OnItemRemoved(left, right);  in RemoveExistingMapping()
180         private void OnItemAdded(TLeft left, TRight right)  in OnItemAdded()  argument
185                 itemAdded(left, right);  in OnItemAdded()
189         private void OnItemRemoved(TLeft left, TRight right)  in OnItemRemoved()  argument
194                 itemRemoved(left, right);  in OnItemRemoved()