54             return set.ValuesByNumber.TryGetValue(extension.FieldNumber, out value);
99                 set.ValuesByNumber.Add(extension.FieldNumber, value);
103                 if (!set.ValuesByNumber.TryGetValue(extension.FieldNumber, out value))
106                     set.ValuesByNumber.Add(extension.FieldNumber, value);
123                 set.ValuesByNumber.Add(extension.FieldNumber, extensionValue);
127                 if (!set.ValuesByNumber.TryGetValue(extension.FieldNumber, out extensionValue))
130                     set.ValuesByNumber.Add(extension.FieldNumber, extensionValue);
155             set.ValuesByNumber.Remove(extension.FieldNumber);
156             if (set.ValuesByNumber.Count == 0)
171             set.ValuesByNumber.Remove(extension.FieldNumber);
172             if (set.ValuesByNumber.Count == 0)
188             if (set != null && set.ValuesByNumber.TryGetValue(lastFieldNumber, out extensionValue))
198                 set.ValuesByNumber.Add(extension.FieldNumber, value);
220             foreach (var pair in second.ValuesByNumber)
223                 if (first.ValuesByNumber.TryGetValue(pair.Key, out value))
230                     first.ValuesByNumber[pair.Key] = cloned;
246             foreach (var pair in set.ValuesByNumber)
249                 newSet.ValuesByNumber[pair.Key] = cloned;
264 …internal Dictionary<int, IExtensionValue> ValuesByNumber { get; } = new Dictionary<int, IExtension…  property in Google.Protobuf.TTarget
272             foreach (KeyValuePair<int, IExtensionValue> field in ValuesByNumber)  in GetHashCode()
291             if (ValuesByNumber.Count != otherSet.ValuesByNumber.Count)  in Equals()
295             foreach (var pair in ValuesByNumber)  in Equals()
298                 if (!otherSet.ValuesByNumber.TryGetValue(pair.Key, out secondValue))  in Equals()
316             foreach (var value in ValuesByNumber.Values)  in CalculateSize()
328             foreach (var value in ValuesByNumber.Values)  in WriteTo()