ScriptableObject's cannot be placed within namespaces unless in DLLs?

This issue still occurs with the latest version of Unity 4.2.1. Whilst I may be mistaken, I was under the impression that Unity 4.0 was suppose to support namespaces within scripts now.

When this issue does occur, attempting to delete the broken asset file causes Unity to crash to the desktop with some MemoryStream exception.

Oddly, it is (and has for quite a while now) possible to place ScriptableObject's into custom namespaces if you compile them into DLL's. But for some reason attempting to do this with separate script assets does not work.

I have reported this using the bug reporter. Here is the case number should anyone be interested:
Case 561547

 

Can't be certain on ScriptableObjects, but namespaces still aren't fully supported for some objects. You can't put a Monobehavior in a namespace whether its in a script or a DLL, it just doesn't work. Your best bet is to not use namespaces for ScriptableObjects either.

 

@numberkruncher, I have not problem to use ScriptableObject in namespaces. In my Decal System Pro, I have a TextureAtlasAsset which is a ScriptableObject within a namespace. In my development environment, it is obviously not in a dll, while in the final version the class is part of a dll. I had not problems with it.

@Dustin Horne, lots of my classes are in namespaces, including scripts derived from MonoBehaviour, Editor, ... . This works since Unity 4 and I never had issues with it so far. What is not working for you?

 

Interesting, I'll have to give it a try again. It's been awhile since I tried it but with 4.0 I was still getting errors when putting a MonoBehavior derivative in a namespace but I may have missed something. My MonoBehavior in that instance was in a compiled assembly.

 

It works in dlls too for me.

 

MonoBehaviour classes seem to work fine within namespaces for me (both in and out of DLL's):

"Scripting: MonoBehaviours can now be inside namespaces."
- http://unity3d.com/unity/whats-new/unity-4.0

Okay, I have narrowed the source of the problem down and it is 100% reproducible. This problem is caused when a custom scriptable object class is placed within a namespace which contains a function with a default parameter.

The following editor script is used in each of the following test cases:

Code (csharp):

1.  
2. // Assets/Editor/Test.cs
3. using UnityEngine;
4. using UnityEditor;
5. using My.Namespace; // Cases 3, 4 and 5
6.  
7. public static class Test {
8.     [MenuItem("Custom/Foo")]
9.     static void Foo() {
10.         var ms = ScriptableObject.CreateInstance<MyScriptable>();
11.         AssetDatabase.CreateAsset(ms, "Assets/test.asset");
12.     }
13. }
14.  

Case 1: Works Fine - Bare Bones

Code (csharp):

1.  
2. // Assets/Scripts/MyScriptable.cs
3. using UnityEngine;
4.  
5. public class MyScriptable : ScriptableObject {
6.     public int someNumber;
7.     public void Foo(int xyz) {
8.         someNumber = xyz;
9.     }
10. }
11.  

1. Select menu Custom|Foo.
2. Select asset in project view and inspect.
3. All good.
4. Delete asset.

Case 2: Works Fine - Namespace

Code (csharp):

1.  
2. // Assets/Scripts/MyScriptable.cs
3. using UnityEngine;
4.  
5. namespace My.Namespace {
6.     public class MyScriptable : ScriptableObject {
7.         public int someNumber;
8.         public void Foo(int xyz) {
9.             someNumber = xyz;
10.         }
11.     }
12. }
13.  

1. Select menu Custom|Foo.
2. Select asset in project view and inspect.
3. All good.
4. Delete asset.

Case 3: Works Fine - Default Function Param

Code (csharp):

1.  
2. // Assets/Scripts/MyScriptable.cs
3. using UnityEngine;
4.  
5. public class MyScriptable : ScriptableObject {
6.     public int someNumber;
7.     public void Foo(int xyz = 123) {
8.         someNumber = xyz;
9.     }
10. }
11.  

1. Select menu Custom|Foo.
2. Select asset in project view and inspect.
3. All good.
4. Delete asset.

Case 4: Fails - Default Function Param + Namespace

Code (csharp):

1.  
2. // Assets/Scripts/MyScriptable.cs
3. using UnityEngine;
4.  
5. namespace My.Namespace {
6.     public class MyScriptable : ScriptableObject {
7.         public int someNumber;
8.         public void Foo(int xyz = 123) {
9.             someNumber = xyz;
10.         }
11.     }
12. }
13.  

1. Select menu Custom|Foo.
2. Select asset in project view and inspect.
3. Inspector indicates that script is missing sometimes saying "None (Mono Script)" otherwise oddly "None (Mono Behaviour)".
4. Delete asset.
5. CRASH

Case 5: Works Fine - Same as Case 4 but inside a DLL

 

You are right. I was able to reproduce that as well. I never encounter the issue because I don't use default values in my Decal System.