FIrst Real Commit

Code refactor and migration to github.

Assets/TextusGames.meta

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Assets/TextusGames/Enhancements.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Core.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Core/SerializeReferenceGenericSelectionMenu.cs

@@ -0,0 +1,101 @@
+#if UNITY_EDITOR
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using UnityEditor;
+using UnityEngine;
+ 
+public static class SerializeReferenceGenericSelectionMenu
+{
+    /// Purpose.
+    /// This is generic selection menu.
+    /// Filtering. 
+    /// You can add substring filter here to filter by search string.
+    /// As well ass type or interface restrictions.
+    /// As well as any custom restriction that is based on input type.
+    /// And it will be performed on each Appropriate type found by TypeCache.
+    public static void ShowContextMenuForManagedReference(this SerializedProperty property, IEnumerable<Func<Type,bool>> filters = null)
+    { 
+        var context = new GenericMenu();
+        FillContextMenu(filters, context, property);
+        context.ShowAsContext();
+    }  
+    
+    
+    private static void FillContextMenu(IEnumerable<Func<Type, bool>> enumerableFilters, GenericMenu contextMenu, SerializedProperty property)
+    {
+        var filters = enumerableFilters.ToList();// Prevents possible multiple enumerations
+        
+        // Adds "Make Null" menu command
+        contextMenu.AddItem(new GUIContent("Null"), false, () => MakeSerializedPropertyNull(property));
+        
+        // Find real type of managed reference
+        var realPropertyType = SerializeReferenceTypeNameUtility.GetRealTypeFromTypename(property.managedReferenceFieldTypename);
+        if (realPropertyType == null)
+        { 
+            Debug.LogError("Can not get type from");
+            return;
+        }
+         
+        // Get and filter all appropriate types
+        var types = TypeCache.GetTypesDerivedFrom(realPropertyType);
+        foreach (var type in types)
+        { 
+            // Skips unity engine Objects (because they are not serialized by SerializeReference)
+            if(type.IsSubclassOf(typeof(UnityEngine.Object)))
+                continue;
+            // Skip abstract classes because they should not be instantiated
+            if(type.IsAbstract)    
+                continue;
+            // Filter types by provided filters if there is ones
+            if (FilterTypeByFilters(filters, type) == false) 
+                continue; 
+                
+            AddItemToContextMenu(type, contextMenu, property); 
+        } 
+    } 
+
+    private static void MakeSerializedPropertyNull(SerializedProperty serializedProperty)
+    {
+        serializedProperty.serializedObject.Update();
+        serializedProperty.managedReferenceValue = null;
+        serializedProperty.serializedObject.ApplyModifiedPropertiesWithoutUndo(); // undo is bugged for now
+    }
+    
+    private static void AddItemToContextMenu(Type type, GenericMenu genericMenuContext, SerializedProperty property)
+    {
+        var assemblyName =  type.Assembly.ToString().Split('(', ',')[0];
+        var entryName = type + "  ( " + assemblyName + " )";
+        genericMenuContext.AddItem(new GUIContent(entryName), false, AssignNewInstanceOfType, new AssignInstanceGenericMenuParameter(type, property));
+    }
+    
+    private static void AssignNewInstanceOfType(object objectGenericMenuParameter )
+    {
+        var parameter = (AssignInstanceGenericMenuParameter) objectGenericMenuParameter;
+        var type = parameter.Type;
+        var property = parameter.Property;
+        var instance = Activator.CreateInstance(type); 
+        property.serializedObject.Update();
+        property.managedReferenceValue = instance;
+        property.serializedObject.ApplyModifiedPropertiesWithoutUndo(); // undo is bugged for now
+    }   
+    
+    private static  bool FilterTypeByFilters (IEnumerable<Func<Type,bool>> filters, Type type) =>
+        filters.All(f => f == null || f.Invoke(type));
+
+    
+    private readonly struct AssignInstanceGenericMenuParameter
+    {
+        public AssignInstanceGenericMenuParameter(Type type, SerializedProperty property)
+        {
+            Type = type;
+            Property = property;
+        }
+        
+        public readonly SerializedProperty Property;
+        public readonly Type Type;
+    }
+} 
+
+#endif

Assets/TextusGames/Enhancements/SerializeReferenceUI/Core/SerializeReferenceGenericSelectionMenu.cs.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Core/SerializeReferenceTypeNameUtility.cs

@@ -0,0 +1,23 @@
+using System;
+
+/// This utility exists, because serialize reference managed reference typename returns combined string
+/// and not data class that contains separate strings for assembly name and for class name (and possibly namespace name)
+public static class SerializeReferenceTypeNameUtility
+{
+    public static Type GetRealTypeFromTypename(string stringType)
+    {
+        var names = GetSplitNamesFromTypename(stringType);
+        var realType = Type.GetType($"{names.ClassName}, {names.AssemblyName}");
+        return realType;
+    }
+    public static (string AssemblyName, string ClassName) GetSplitNamesFromTypename(string typename)
+    {
+        if (string.IsNullOrEmpty(typename))
+            return ("","");
+        
+        var typeSplitString = typename.Split(char.Parse(" "));
+        var typeClassName = typeSplitString[1];
+        var typeAssemblyName = typeSplitString[0];
+        return (typeAssemblyName,  typeClassName);
+    }  
+}

Assets/TextusGames/Enhancements/SerializeReferenceUI/Core/SerializeReferenceTypeNameUtility.cs.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Drawing.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Drawing/SerializeReferenceButton.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Drawing/SerializeReferenceButton/SerializeReferenceButtonAttribute.cs

@@ -0,0 +1,8 @@
+using System;
+using UnityEngine;
+
+[AttributeUsage(AttributeTargets.Field)]
+public class SerializeReferenceButtonAttribute : PropertyAttribute
+{
+    
+}

Assets/TextusGames/Enhancements/SerializeReferenceUI/Drawing/SerializeReferenceButton/SerializeReferenceButtonAttribute.cs.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Drawing/SerializeReferenceButton/SerializeReferenceButtonAttributeDrawer.cs

@@ -0,0 +1,31 @@
+#if UNITY_EDITOR
+
+using UnityEditor; 
+using UnityEngine;
+
+[CustomPropertyDrawer(typeof(SerializeReferenceButtonAttribute))]
+public class SerializeReferenceButtonAttributeDrawer : PropertyDrawer
+{
+    public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
+    {
+        return EditorGUI.GetPropertyHeight(property, true);
+    }
+ 
+    public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
+    {
+
+        
+        EditorGUI.BeginProperty(position, label, property); 
+        
+        var labelPosition = new Rect(position.x, position.y, position.width, EditorGUIUtility.singleLineHeight);
+        EditorGUI.LabelField(labelPosition, label);    
+         
+        var typeRestrictions = SerializedReferenceUIBuiltInTypeRestrictions.GetAllBuiltInTypeRestrictions(fieldInfo);
+        property.DrawSelectionButtonForManagedReference(position, typeRestrictions);
+        
+        EditorGUI.PropertyField(position, property, GUIContent.none, true);
+        
+        EditorGUI.EndProperty(); 
+    } 
+}
+#endif

Assets/TextusGames/Enhancements/SerializeReferenceUI/Drawing/SerializeReferenceButton/SerializeReferenceButtonAttributeDrawer.cs.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Drawing/SerializeReferenceInspectorButton.cs

@@ -0,0 +1,45 @@
+#if UNITY_EDITOR
+
+using System;
+using System.Collections.Generic; 
+using UnityEditor;
+using UnityEngine;
+
+public static class SerializeReferenceInspectorButton
+{
+    public static readonly Color SerializedReferenceMenuBackgroundColor = new Color(0.1f, 0.55f, 0.9f, 1f);
+
+    /// Must be drawn before DefaultProperty in order to receive input
+    public static void DrawSelectionButtonForManagedReference(this SerializedProperty property,  Rect position, IEnumerable<Func<Type, bool>> filters = null) =>  
+        property.DrawSelectionButtonForManagedReference(position, SerializedReferenceMenuBackgroundColor, filters);
+    
+    /// Must be drawn before DefaultProperty in order to receive input
+    public static void DrawSelectionButtonForManagedReference(this SerializedProperty property, 
+        Rect position, Color color, IEnumerable<Func<Type, bool>> filters = null)  
+    { 
+  
+        var backgroundColor = color;   
+            
+        var buttonPosition = position;
+        buttonPosition.x += EditorGUIUtility.labelWidth + 1 * EditorGUIUtility.standardVerticalSpacing;
+        buttonPosition.width = position.width - EditorGUIUtility.labelWidth - 1 * EditorGUIUtility.standardVerticalSpacing;
+        buttonPosition.height = EditorGUIUtility.singleLineHeight;
+
+        var storedIndent = EditorGUI.indentLevel;
+        EditorGUI.indentLevel = 0;
+        var storedColor = GUI.backgroundColor;
+        GUI.backgroundColor = backgroundColor; 
+         
+        
+        var names = SerializeReferenceTypeNameUtility.GetSplitNamesFromTypename(property.managedReferenceFullTypename);
+        var className = string.IsNullOrEmpty(names.ClassName) ? "Null (Assign)" : names.ClassName;
+        var assemblyName = names.AssemblyName;
+        if (GUI.Button(buttonPosition, new GUIContent(className, className + "  ( "+ assemblyName +" )" )))
+            property.ShowContextMenuForManagedReference(filters);
+        
+        GUI.backgroundColor = storedColor;
+        EditorGUI.indentLevel = storedIndent;
+    }
+}
+
+#endif

Assets/TextusGames/Enhancements/SerializeReferenceUI/Drawing/SerializeReferenceInspectorButton.cs.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Drawing/SerializeReferenceInspectorMiddleMouseMenu.cs

@@ -0,0 +1,21 @@
+#if UNITY_EDITOR
+
+using System;
+using System.Collections.Generic;
+using UnityEditor;
+using UnityEngine;
+
+public static class SerializeReferenceInspectorMiddleMouseMenu
+{
+    public static void ShowContextMenuForManagedReferenceOnMouseMiddleButton(this SerializedProperty property,
+        Rect position, IEnumerable<Func<Type, bool>> filters = null)
+    {
+        var e = Event.current;
+        if (e.type != EventType.MouseDown || !position.Contains(e.mousePosition) || e.button != 2) 
+            return;
+        
+        property.ShowContextMenuForManagedReference(filters);
+    } 
+}
+
+#endif

Assets/TextusGames/Enhancements/SerializeReferenceUI/Drawing/SerializeReferenceInspectorMiddleMouseMenu.cs.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Drawing/SerializeReferenceMenu.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Drawing/SerializeReferenceMenu/SerializeReferenceMenuAttribute.cs

@@ -0,0 +1,8 @@
+using System;
+using UnityEngine;
+
+[AttributeUsage(AttributeTargets.Field)]
+public class SerializeReferenceMenuAttribute : PropertyAttribute
+{
+    
+}

Assets/TextusGames/Enhancements/SerializeReferenceUI/Drawing/SerializeReferenceMenu/SerializeReferenceMenuAttribute.cs.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Drawing/SerializeReferenceMenu/SerializeReferenceMenuAttributeDrawer.cs

@@ -0,0 +1,26 @@
+#if UNITY_EDITOR
+
+using UnityEditor;
+using UnityEngine;
+
+[CustomPropertyDrawer(typeof(SerializeReferenceMenuAttribute))]
+public class SerializeReferenceMenuAttributeDrawer : PropertyDrawer
+{
+    public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
+    {
+        return EditorGUI.GetPropertyHeight(property, true);
+    }
+
+    public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
+    {
+        EditorGUI.BeginProperty(position, label, property);
+        
+        var typeRestrictions = SerializedReferenceUIBuiltInTypeRestrictions.GetAllBuiltInTypeRestrictions(fieldInfo);
+        property.ShowContextMenuForManagedReferenceOnMouseMiddleButton(position, typeRestrictions);
+        
+        EditorGUI.PropertyField(position, property, true);
+        EditorGUI.EndProperty();
+    }
+}
+#endif
+

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Example/ExampleAnimalWorldAssembly/AmimalWorld.asmdef

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+{
+	"name": "AmimalWorld"
+}

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Example/ExampleAnimalWorldAssembly/Animals.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Example/ExampleAnimalWorldAssembly/Animals/AnimalBase.cs

@@ -0,0 +1,42 @@
+using System;
+using UnityEngine;
+
+[Serializable]
+public class AnimalBase : IAnimal
+{
+    [SerializeField] protected float age;
+    public GameObject food;
+    public virtual void Feed()
+    {
+        Debug.Log("Thanks");
+    } 
+}
+  
+[Serializable]
+public class AnimalChild : AnimalBase {} 
+
+[Serializable]
+public abstract class AnimalGrandChildAbstract : AnimalBase
+{
+    public string someString;
+}
+
+[Serializable]
+public class AbstractAnimalGrandChild : AnimalGrandChildAbstract {}
+
+
+[Serializable]
+public abstract class AbstractAnimal : IAnimal
+{
+    [SerializeField] protected float age;
+    public GameObject food;
+    public virtual void Feed()
+    {
+        Debug.Log("Thanks");
+    } 
+}
+
+[Serializable]
+public class AbstractAnimalChild : AbstractAnimal {}
+
+

Assets/TextusGames/Enhancements/SerializeReferenceUI/Example/ExampleAnimalWorldAssembly/Animals/AnimalBase.cs.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Example/ExampleAnimalWorldAssembly/Animals/IAnimal.cs

@@ -0,0 +1,4 @@
+public  interface IAnimal
+{
+    void Feed();
+}

Assets/TextusGames/Enhancements/SerializeReferenceUI/Example/ExampleAnimalWorldAssembly/Animals/IAnimal.cs.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Example/ExampleAnimalWorldAssembly/Animals/MammalBase.cs

@@ -0,0 +1,7 @@
+using System;
+ 
+[Serializable]
+public abstract class MammalBase : AnimalBase
+{  
+    public int numberOfBones;
+}  

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Example/ExampleOfUsageFromDifferentAssembly/Animals/ApeBase.cs

@@ -0,0 +1,30 @@
+
+public abstract class ApeBase : MammalBase, IApe
+{
+    public string Tag = default;
+} 
+ 
+public interface IApe 
+{
+    
+}
+
+public class RedApe : ApeBase
+{
+    
+} 
+
+public class GoldenApe : ApeBase
+{
+     
+} 
+public class GreenApe : ApeBase
+{
+     
+} 
+
+public class BlackApe : ApeBase
+{
+    
+}
+

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Example/ExampleOfUsageFromDifferentAssembly/Animals/CatBase.cs

@@ -0,0 +1,30 @@
+
+public abstract class CatBase : MammalBase, ICat
+{
+    public string Tag = default;
+}
+ 
+public interface ICat 
+{
+    
+}
+
+public class RedCat : CatBase
+{
+    
+} 
+
+public class GoldenCat : CatBase
+{
+     
+} 
+
+public class GreenCat : CatBase
+{
+    
+} 
+ 
+public class BlackCat : CatBase
+{
+    
+} 

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Example/ExampleOfUsageFromDifferentAssembly/Animals/DogBase.cs

@@ -0,0 +1,30 @@
+
+public abstract class DogBase : MammalBase, IDog
+{
+    public string Tag = default;
+}
+
+public interface IDog 
+{ 
+    
+}
+
+public class RedDog : DogBase
+{
+    
+}  
+
+public class GoldenDog : DogBase
+{
+     
+} 
+
+public class GreenDog : DogBase
+{ 
+    
+} 
+
+public class BlackDog : DogBase
+{
+    
+} 

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Example/ExampleOfUsageFromDifferentAssembly/Animals/FishBase.cs

@@ -0,0 +1,28 @@
+public abstract class FishBase : AnimalBase, IFish
+{
+    public string Tag = default;
+}
+
+public interface IFish 
+{
+    
+}
+public class RedFish : FishBase
+{
+    
+}  
+
+public class GoldenFish : FishBase
+{
+    
+} 
+
+public class GreenFish : FishBase
+{
+    
+} 
+ 
+public class BlackFish : FishBase
+{
+    
+}

Assets/TextusGames/Enhancements/SerializeReferenceUI/Example/ExampleOfUsageFromDifferentAssembly/Animals/FishBase.cs.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Example/ExampleOfUsageFromDifferentAssembly/Animals/InsectBase.cs

@@ -0,0 +1,30 @@
+
+public abstract class InsectBase : AnimalBase, IInsect
+{
+    public string Tag = default;
+}
+
+public interface IInsect 
+{
+    
+}
+
+public class RedInsect : InsectBase
+{
+    
+} 
+
+public class GoldenInsect : InsectBase
+{ 
+    
+} 
+
+public class GreenInsect : InsectBase
+{
+    
+} 
+
+public class BlackInsect : InsectBase
+{
+    
+} 

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Example/ExampleOfUsageFromDifferentAssembly/TestingAnimalWorldExample/Scenes/SampleSceneSettings.lighting

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Example/ExampleOfUsageFromDifferentAssembly/TestingAnimalWorldExample/Scenes/SerializeRefereneceUIExampleScene.unity

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Example/ExampleOfUsageFromDifferentAssembly/TestingAnimalWorldExample/Scenes/SerializeRefereneceUIExampleScene.unity.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Example/ExampleOfUsageFromDifferentAssembly/TestingAnimalWorldExample/Test.cs

@@ -0,0 +1,58 @@
+using System;
+using System.Collections.Generic;
+using UnityEngine;
+ 
+public class Test : MonoBehaviour
+{
+    [Header("Restricted to DogBase and IApe")]   
+    [SerializeReference]    
+    [SerializeReferenceButton]
+    [SerializeReferenceUIRestrictionIncludeTypes(typeof(DogBase), typeof(IApe))]
+    public IAnimal restrictedAnimals = default;  
+    
+    [Header("Interface")]   
+    [SerializeReference]    
+    [SerializeReferenceButton]
+    public IAnimal animalInterface = default;  
+  
+    [Header("Abstract")]    
+    [SerializeReference]  
+    [SerializeReferenceButton]
+    public AbstractAnimal animalAbstract = default;  
+    
+    [Header("Base Class")] 
+    [SerializeReference] 
+    [SerializeReferenceButton]
+    public AnimalBase animalBaseClass = default;
+ 
+    
+    [Header("List of interfaces")]
+    [SerializeReference]
+    [SerializeReferenceButton] 
+    public List<IAnimal> animalsWithInterfaces = new List<IAnimal>();
+    
+    
+    [Header("List of Animals via MMB menu")] 
+    [SerializeReference] 
+    [SerializeReferenceMenu]
+    public List<AnimalBase> animalsWithInterfacesMenu = new List<AnimalBase>();
+
+    
+    [Header("Class with serialized reference field")] 
+    public List<ClassWithSerializedReferenceChild> classWithChildReferences = default;
+}
+  
+ 
+[Serializable]
+public class ClassWithSerializedReferenceChild
+{
+    public int integerValue = default;
+    
+    [SerializeReference] 
+    [SerializeReferenceButton]
+    public AnimalBase animals = default; 
+    
+    [SerializeReference] 
+    [SerializeReferenceButton]
+    public IAnimal animalInterfaces = default;
+}

Assets/TextusGames/Enhancements/SerializeReferenceUI/Example/ExampleOfUsageFromDifferentAssembly/TestingAnimalWorldExample/Test.cs.meta

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+timeCreated: 1579584059

Assets/TextusGames/Enhancements/SerializeReferenceUI/LICENSE.txt.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Restriction.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Restriction/SerializeReferenceTypeRestrictionFilters.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Linq;
+
+public static class SerializeReferenceTypeRestrictionFilters
+{
+    public static Func<Type, bool> TypeIsNotSubclassOrEqualOrHasInterface(Type[] types) => type =>
+        TypeIsSubclassOrEqualOrHasInterface(types).Invoke(type) == false;
+
+    public static Func<Type, bool> TypeIsSubclassOrEqualOrHasInterface(Type[] types) => type =>
+        types.Any(e => e.IsInterface ? TypeHasInterface(type, e) : TypeIsSubclassOrEqual(type, e));
+
+    public static bool TypeIsSubclassOrEqual(Type type, Type comparator) =>  type.IsSubclassOf(comparator) || type == comparator;
+    public static bool TypeHasInterface(this Type type, Type comparator) =>  type.GetInterface(comparator.ToString()) != null;
+}

Assets/TextusGames/Enhancements/SerializeReferenceUI/Restriction/SerializeReferenceTypeRestrictionFilters.cs.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Restriction/SerializeReferenceUIRestrictionExcludeTypes.cs

@@ -0,0 +1,10 @@
+using System;
+using UnityEngine;
+
+/// None of this types or interface types are valid.
+[AttributeUsage(AttributeTargets.Field)]
+public class SerializeReferenceUIRestrictionExcludeTypes : PropertyAttribute
+{
+    public readonly Type[] Types;
+    public SerializeReferenceUIRestrictionExcludeTypes(params Type[] types) => Types = types;
+} 

Assets/TextusGames/Enhancements/SerializeReferenceUI/Restriction/SerializeReferenceUIRestrictionExcludeTypes.cs.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Restriction/SerializeReferenceUIRestrictionIncludeTypes.cs

@@ -0,0 +1,10 @@
+using System;
+using UnityEngine;
+
+/// Any of this types or interface types are valid. And only this types can be presented.
+[AttributeUsage(AttributeTargets.Field)]
+public class SerializeReferenceUIRestrictionIncludeTypes : PropertyAttribute
+{
+    public readonly Type[] Types;
+    public SerializeReferenceUIRestrictionIncludeTypes(params Type[] types) => Types = types;
+}

Assets/TextusGames/Enhancements/SerializeReferenceUI/Restriction/SerializeReferenceUIRestrictionIncludeTypes.cs.meta

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Assets/TextusGames/Enhancements/SerializeReferenceUI/Restriction/SerializedReferenceUIBuiltInTypeRestrictions.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+
+public static class SerializedReferenceUIBuiltInTypeRestrictions
+{
+    public static IEnumerable<Func<Type, bool>> GetAllBuiltInTypeRestrictions(FieldInfo fieldInfo)
+    {
+        var result = new List<Func<Type, bool>>();
+        
+        var attributeObjects = fieldInfo.GetCustomAttributes(false);
+        foreach (var attributeObject in attributeObjects)
+        {
+            switch (attributeObject)
+            { 
+                case SerializeReferenceUIRestrictionIncludeTypes includeTypes:
+                    result.Add(SerializeReferenceTypeRestrictionFilters.TypeIsSubclassOrEqualOrHasInterface(includeTypes.Types)); 
+                    continue;
+                case SerializeReferenceUIRestrictionExcludeTypes excludeTypes:
+                    result.Add(SerializeReferenceTypeRestrictionFilters.TypeIsNotSubclassOrEqualOrHasInterface(excludeTypes.Types)); 
+                    continue;
+            } 
+        }
+        return result; 
+    }
+} 

Assets/TextusGames/Enhancements/SerializeReferenceUI/Restriction/SerializedReferenceUIBuiltInTypeRestrictions.cs.meta

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+  serializedVersion: 2
+  defaultReferences: []
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Assets/TextusGames/Enhancements/SerializeReferenceUI/Textus.SerializeReferenceUI.asmdef

@@ -0,0 +1,3 @@
+{
+	"name": "Textus.SerializeReferenceUI"
+}

Assets/TextusGames/Enhancements/SerializeReferenceUI/Textus.SerializeReferenceUI.asmdef.meta

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README.md

@@ -1,4 +1,4 @@
 # UnitySerializedReferenceUI
 The UI for Unity's SerealizedReference attribute. It allows to change the instance type of field right in editor.
 
-Project is provided under Mit license which you can find in inner main folder
+Project is provided under Mit license which you can find in inner main folder ("SerializedReferenceUI")