UnityRefChecker

Unassigned reference warnings at compile time, across scenes.

UnityRefChecker helps you avoid null references in MonoBehaviours by looking through all MonoBehaviour references in a scene and warning you in Unity's console if a reference has not been assigned.

Fields that cause a log:

• Unassigned public MonoBehaviour fields that do not have [IgnoreRefChecker] or [HideInInspector]
• Unassigned private MonoBehaviour fields that do not have [IgnoreRefChecker] and do have [SerializeField]

Example

Here are some example logs:

Getting Started

1. Open your Unity project

2. Clone this project into the Assets/ folder

3. Add the [IgnoreRefChecker] attribute in front of any members that you wish to keep unassigned

4. In Unity, go to Window -> UnityRefChecker to run commands and configure settings

Commands

• Check All Build Scenes - Checks all MonoBehaviour references in all scenes listed in the Unity Build Settings

• Check Open Scene - Checks all MonoBehaviour references in the currently active scene

Attributes

• IgnoreRefChecker - Add this attribute to fields that you wish to keep unassigned. UnityRefChecker will not warn you about these fields

Settings

Property	Description	Default Value
Check after compilation	Runs the Check All Build Scenes command every time Unity finishes compiling	false
Log type	The severity of the log using Unity's LogType (Error, Log, Warning)	Error
Colorful logs	Adds color to the Unity console logs to highlight important info	true

TODO

• Make video tutorial showing the problem this solves
• Include prefabs in checks
• Add to Unity Asset Store

Testing

To test UnityRefChecker create a new Unity project, clone UnityRefChecker and set up a scene like this:

Then open the UnityRefChecker Window and run commands. The RefCheckerTestComponent has the expected results as comments.