Deserialization issue with Dictionary cannot resolve type using JsonFx for Unity

General
1

This was working but appears broken in latest build. Perhaps an issue with changes around the windows phone.

Hoping you can help. Switching over to arrays works ie TestObj[]

`using UnityEngine;
using System.Collections.Generic;

public class Test : MonoBehaviour {

// Use this for initialization
void Start () 
{
	Dictionary<string, TestObj> my = new Dictionary<string, TestObj>();
	my.Add("1", new TestObj(){ id = "1" });
	my.Add("2", new TestObj(){ id = "2" });
	my.Add("3", new TestObj(){ id = "3" });
			
	var sMy = JsonWriter.Serialize(my);
	
	var final = JsonReader.Deserialize<Dictionary<string, TestObj>>(sMy);
}

// Update is called once per frame
void Update () {

}

}

public class TestObj
{
public string id;
}`

2

Actually this only appears to be an issue if I compile the dll externally and drop it into unity. Placing the source directly into unity works fine. Not sure why.

3

Have you modified the JsonFx dll somehow? I see you are not “using Pathfinding.Serialization.JsonFx”.

4

I had but just reverted back to original code. So the issue appears to be that if I compile with the compiler directive WIN_PHONE8 as per your default settings you cannot deserialize generic dictionaries per this code in the following methods

That directive appears to basically kill the Dictionary<string, object> functionality and throw an error where it has no idea what the type is to deserialize. I removed the WINPHONE_8 directive from Mono and rebuilt and then it works. Unfortunately I am guessing (need to try this) that I will no longer be able to build windows 8 phone apps because of incompatibility with TypeGenericIDictionary (or something else in this code).

So am I correct in assuming that JsonFx right now for windows 8 phone cannot support generic dictionaries? Thanks.

private Type GetGenericDictionaryType (Type objectType) {
// this allows specific IDictionary<string, T> to deserialize T
#if !WINPHONE_8
Type genericDictionary = objectType.GetInterface(JsonReader.TypeGenericIDictionary);
if (genericDictionary != null)
{
Type[] genericArgs = genericDictionary.GetGenericArguments();
if (genericArgs.Length == 2)
{
if (genericArgs[0] != typeof(String))
{
throw new JsonDeserializationException(
String.Format(JsonReader.ErrorGenericIDictionaryKeys, objectType),
this.index);
}

				if (genericArgs[1] != typeof(Object))
				{
					return genericArgs[1];
				}
			}
		}

#endif
return null;
}

	private void PopulateObject (ref object result, Type objectType, Dictionary<string, MemberInfo> memberMap, Type genericDictionaryType)
	{
		if (this.Source[this.index] != JsonReader.OperatorObjectStart)
		{
			throw new JsonDeserializationException(JsonReader.ErrorExpectedObject, this.index);
		}

#if WINPHONE_8
IDictionary idict = result as IDictionary;
#else
IDictionary idict = result as IDictionary;

		if (idict == null && objectType.GetInterface(JsonReader.TypeGenericIDictionary) != null )
		{
			throw new JsonDeserializationException(
				String.Format(JsonReader.ErrorGenericIDictionary, objectType),
				this.index);
		}

#endif

5

BTW serialization works just not deserialization.

6

Oh and thanks for the help.