public static IListTracker <T> Deserialize(ref MessagePackReader reader, MessagePackSerializerOptions options)
{
var tracker = new TrackableListTracker <T>();
var length = reader.ReadArrayHeader();
for (int i = 0; i < length; i++)
{
var operation = reader.ReadInt32();
var index = reader.ReadInt32();
var value = MessagePackSerializer.Deserialize <T>(ref reader, options);
switch ((TrackableListOperation)operation)
{
case TrackableListOperation.Insert:
tracker.TrackInsert(index, value);
break;
case TrackableListOperation.Remove:
tracker.TrackRemove(index, value);
break;
case TrackableListOperation.Modify:
tracker.TrackModify(index, default(T), value);
break;
case TrackableListOperation.PushFront:
tracker.TrackPushFront(value);
break;
case TrackableListOperation.PushBack:
tracker.TrackPushBack(value);
break;
case TrackableListOperation.PopFront:
tracker.TrackPopFront(default(T));
break;
case TrackableListOperation.PopBack:
tracker.TrackPopBack(default(T));
break;
}
}
return(tracker);
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue,
JsonSerializer serializer)
{
if (reader.TokenType != JsonToken.StartArray)
{
return(null);
}
var tracker = new TrackableListTracker <T>();
reader.Read();
while (true)
{
if (reader.TokenType != JsonToken.StartArray)
{
break;
}
reader.Read();
var str = (string)reader.Value;
reader.Read();
if (str.Length < 2)
{
throw new Exception("Wrong index token: " + str);
}
int index;
if (str[1] == 'F')
{
index = -2;
}
else if (str[1] == 'B')
{
index = -1;
}
else if (int.TryParse(str.Substring(1), out index) == false)
{
throw new Exception("Invalid token: " + str);
}
T obj;
switch (str[0])
{
case '+':
obj = serializer.Deserialize <T>(reader);
reader.Read();
if (index == -2)
{
tracker.TrackPushFront(obj);
}
else if (index == -1)
{
tracker.TrackPushBack(obj);
}
else
{
tracker.TrackInsert(index, obj);
}
break;
case '-':
if (index == -2)
{
tracker.TrackPopFront(default(T));
}
else if (index == -1)
{
tracker.TrackPopBack(default(T));
}
else
{
tracker.TrackRemove(index, default(T));
}
break;
case '=':
obj = serializer.Deserialize <T>(reader);
reader.Read();
tracker.TrackModify(index, default(T), obj);
break;
}
if (reader.TokenType != JsonToken.EndArray)
{
throw new Exception("Wrong token type: " + reader.TokenType);
}
reader.Read();
}
return(tracker);
}
