void _writeObject(object obj, EasyJsonWriter writer)
{
if (obj == null)
{
writer.WriteJsonValue(null);
return;
}
if (++_depth > MAX_DEPTH)
{
throw new EasyJsonException("Class nested level is beyond max depth, check whether there is a loop");
}
Type t = obj.GetType();
EasyJsonController controller = GetController(t);
if (controller != null)
{
writer.WriteJsonValue(controller.ObjectToJson(obj));
return;
}
writer.WriteObjectStart();
JsonClassMetadata metadata = _getMetadata(t);
foreach (KeyValuePair <string, FieldInfo> kv in metadata.Fields)
{
_writeObject(kv.Key, kv.Value.GetValue(obj), writer);
}
foreach (KeyValuePair <string, PropertyInfo> kv in metadata.Properties)
{
MethodInfo getMethod = kv.Value.GetGetMethod();
if (getMethod == null)
{
throw new EasyJsonException("Fail to access getter of " + kv.Value.Name);
}
if (getMethod.GetParameters().Length > 0)
{
continue;
}
_writeObject(kv.Key, getMethod.Invoke(obj, null), writer);
}
if (metadata.IsDynamicType)
{
_writeObject(DYNAMIC_TYPE_NAME, t, writer);
}
writer.WriteObjectEnd();
writer.WriteJsonValue("");
}
JsonClassMetadata _getMetadata(Type t)
{
JsonClassMetadata metadata = null;
_metadataCache.TryGetValue(t, out metadata);
if (metadata == null)
{
metadata = new JsonClassMetadata(t);
_metadataCache[t] = metadata;
}
return(metadata);
}
object _readObject(EasyJsonData data, Type t)
{
if (data.IsNullValue)
{
return(null);
}
try
{
// If user register a specific type controller but still invoke base JsonToObject, there
// will make a loop: base -> GetController(t) -> child -> base
if (_checkedData != data)
{
_checkedData = data;
if (data.Type == EasyJsonDataType.JsonObject)
{
EasyJsonData typeData = data[DYNAMIC_TYPE_NAME];
if (typeData != null)
{
JsonSystemTypeController typeController = GetController(typeof(Type)) as JsonSystemTypeController;
if (typeController == null)
{
throw new EasyJsonException("Can't find System.Type controller to process dynamic type");
}
t = typeController.JsonToObject(typeData, typeof(Type)) as Type;
}
}
EasyJsonController controller = GetController(t);
if (controller != null)
{
return(controller.JsonToObject(data, t));
}
}
if (data.Type != EasyJsonDataType.JsonObject)
{
throw new EasyJsonException("Can't load JSON data for " + t.ToString());
}
object inst = Activator.CreateInstance(t);
JsonClassMetadata metadata = _getMetadata(t);
foreach (KeyValuePair <string, FieldInfo> kv in metadata.Fields)
{
EasyJsonData fieldData = data[kv.Key];
if (fieldData != null)
{
FieldInfo field = kv.Value;
field.SetValue(inst, _readObject(fieldData, field.FieldType));
}
}
foreach (KeyValuePair <string, PropertyInfo> kv in metadata.Properties)
{
EasyJsonData propertyData = data[kv.Key];
if (propertyData != null)
{
PropertyInfo property = kv.Value;
property.SetValue(inst, _readObject(propertyData, property.PropertyType), null);
}
}
return(inst);
}
finally
{
_checkedData = null;
}
}
