Unity#D editor killing editor-script

namespace EditorStuff
    open UnityEngine
    open UnityEditor
    open System

    type public EditorStuff = class
        inherit UnityEditor.AssetPostprocessor
        static member OnPostprocessAllAssets (importedAssets :
         String array, deletedAssets :
         String array,movedAssets :
         String array,movedFromAssetPaths :
         String array):unit = UnityEngine.Debug.Log("got it!")
        end