public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
// Logic adapted from JsonSerializerInternalReader.CreateDynamic()
// https://github.com/JamesNK/Newtonsoft.Json/blob/master/Src/Newtonsoft.Json/Serialization/JsonSerializerInternalReader.cs#L1751
// By James Newton-King https://github.com/JamesNK
var contract = (JsonDynamicContract)serializer.ContractResolver.ResolveContract(objectType);
if (reader.TokenType == JsonToken.Null)
{
return(null);
}
var jObj = JObject.Load(reader);
var used = new HashSet <string>();
var obj = CreateObject(jObj, objectType, serializer, used);
foreach (var jProperty in jObj.Properties())
{
var memberName = jProperty.Name;
if (used.Contains(memberName))
{
continue;
}
// first attempt to find a settable property, otherwise fall back to a dynamic set without type
JsonProperty property = contract.Properties.GetClosestMatchProperty(memberName);
if (property != null && property.Writable && !property.Ignored)
{
var propertyValue = jProperty.Value.ToObject(property.PropertyType, serializer);
property.ValueProvider.SetValue(obj, propertyValue);
}
else
{
object propertyValue;
if (jProperty.Value.Type == JTokenType.Null)
{
propertyValue = null;
}
else if (jProperty.Value is JValue)
{
// Primitive
propertyValue = ((JValue)jProperty.Value).Value;
}
else
{
propertyValue = jProperty.Value.ToObject <IDynamicMetaObjectProvider>(serializer);
}
// Unfortunately the following is not public!
// contract.TrySetMember(obj, memberName, propertyValue);
// So we have to duplicate the logic of what Json.NET has already done.
CallSiteCache.SetValue(memberName, obj, propertyValue);
}
}
return(obj);
}
public override object this[object target, string name]
{
get { return(CallSiteCache.GetValue(name, target)); }
set { CallSiteCache.SetValue(name, target, value); }
}