Minor refactor changes

Author: arimger

Assets/Editor Toolbox/Editor/ContextMenu/Operations/SerializeReference/CopySerializeReferenceOperation.cs

@@ -7,6 +7,12 @@ internal class CopySerializeReferenceOperation : IContextMenuOperation
     {
         internal static CopySerializedRererenceCache Cache { get; private set; }
 
+        [InitializeOnLoadMethod]
+        private static void Initialize()
+        {
+            Cache = null;
+        }
+
         public bool IsVisible(SerializedProperty property)
         {
 #if UNITY_2021_3_OR_NEWER
@@ -38,11 +44,5 @@ public void Perform(SerializedProperty property)
         }
 
         public GUIContent Label => new GUIContent("Copy Serialize Reference");
-
-        [InitializeOnLoadMethod]
-        private static void Initialize()
-        {
-            Cache = null;
-        }
     }
 }

Assets/Editor Toolbox/Editor/ContextMenu/Operations/SerializeReference/DuplicateSerializeReferenceArrayElementOperation.cs

@@ -5,8 +5,6 @@ namespace Toolbox.Editor.ContextMenu.Operations
 {
     internal class DuplicateSerializeReferenceArrayElementOperation : IContextMenuOperation
     {
-        public GUIContent Label => new GUIContent("Duplicate Serialize Reference Array Element");
-
         public bool IsVisible(SerializedProperty property)
         {
 #if UNITY_2021_3_OR_NEWER
@@ -24,6 +22,7 @@ public bool IsEnabled(SerializedProperty property)
 
         public void Perform(SerializedProperty property)
         {
+#if UNITY_2021_3_OR_NEWER
             var sourceProperty = property.Copy();
             sourceProperty.serializedObject.Update();
             var sourceValue = sourceProperty.managedReferenceValue;
@@ -41,6 +40,9 @@ public void Perform(SerializedProperty property)
             }
 
             sourceProperty.serializedObject.ApplyModifiedProperties();
+#endif
         }
+
+        public GUIContent Label => new GUIContent("Duplicate Serialize Reference Array Element");
     }
 }

Assets/Editor Toolbox/Editor/ContextMenu/Operations/SerializeReference/PasteSerializeReferenceOperation.cs

@@ -38,6 +38,7 @@ public bool IsEnabled(SerializedProperty property)
 
         public void Perform(SerializedProperty property)
         {
+#if UNITY_2019_3_OR_NEWER
             var targetProperty = property.Copy();
             try
             {
@@ -47,6 +48,7 @@ public void Perform(SerializedProperty property)
             }
             catch (Exception)
             { }
+#endif
         }
 
         public GUIContent Label => new GUIContent("Paste Serialize Reference");

Assets/Editor Toolbox/Editor/Drawers/Toolbox/PropertySelf/ReferencePickerAttributeDrawer.cs

@@ -58,7 +58,7 @@ private void CreateTypeProperty(SerializedProperty property, Type parentType, Re
                         {
                             using (var so = new SerializedObject(target))
                             {
-                                SerializedProperty sp = so.FindProperty(property.propertyPath);
+                                var sp = so.FindProperty(property.propertyPath);
                                 UpdateTypeProperty(sp, type, attribute);
                             }
                         }