formatting

Editor/Attributes/SerializeReferenceButtonAttributeDrawer.cs

@@ -1,5 +1,6 @@
 #if UNITY_EDITOR
-
+using System;
+using System.Collections.Generic;
 using UnityEditor; 
 using UnityEngine;
 
@@ -13,14 +14,12 @@ public class SerializeReferenceButtonAttributeDrawer : PropertyDrawer
  
     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);
+        Rect labelPosition = new Rect(position.x, position.y, position.width, EditorGUIUtility.singleLineHeight);
         EditorGUI.LabelField(labelPosition, label);
 
-        var typeRestrictions = SerializedReferenceUIDefaultTypeRestrictions.GetAllBuiltInTypeRestrictions(fieldInfo);
+        IEnumerable<Func<Type, bool>> typeRestrictions = SerializedReferenceUIDefaultTypeRestrictions.GetAllBuiltInTypeRestrictions(fieldInfo);
         property.DrawSelectionButtonForManagedReference(position, typeRestrictions);
         
         EditorGUI.PropertyField(position, property, GUIContent.none, true);

Editor/Attributes/SerializeReferenceMenuAttributeDrawer.cs

@@ -1,5 +1,6 @@
 #if UNITY_EDITOR
-
+using System;
+using System.Collections.Generic;
 using UnityEditor;
 using UnityEngine;
 
@@ -15,7 +16,7 @@ public class SerializeReferenceMenuAttributeDrawer : PropertyDrawer
     {
         EditorGUI.BeginProperty(position, label, property);
 
-        var typeRestrictions = SerializedReferenceUIDefaultTypeRestrictions.GetAllBuiltInTypeRestrictions(fieldInfo);
+        IEnumerable<Func<Type, bool>> typeRestrictions = SerializedReferenceUIDefaultTypeRestrictions.GetAllBuiltInTypeRestrictions(fieldInfo);
         property.ShowContextMenuForManagedReferenceOnMouseMiddleButton(position, typeRestrictions);
         
         EditorGUI.PropertyField(position, property, true);
@@ -23,4 +24,3 @@ public class SerializeReferenceMenuAttributeDrawer : PropertyDrawer
     }
 }
 #endif
-

Editor/Core/ManagedReferenceUtility.cs

@@ -1,5 +1,4 @@
 #if UNITY_EDITOR
-
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -12,7 +11,7 @@ public static class ManagedReferenceUtility
     /// Creates instance of passed type and assigns it to managed reference
     public static object AssignNewInstanceOfTypeToManagedReference(this SerializedProperty serializedProperty, Type type)
     {
-        var instance = Activator.CreateInstance(type);
+        object instance = Activator.CreateInstance(type);
         
         serializedProperty.serializedObject.Update(); 
         serializedProperty.managedReferenceValue = instance;
@@ -32,34 +31,44 @@ public static class ManagedReferenceUtility
     /// Collects appropriate types based on managed reference field type and filters. Filters all derive
     public static IEnumerable<Type> GetAppropriateTypesForAssigningToManagedReference(this SerializedProperty property, List<Func<Type, bool>> filters = null)
     {
-        var fieldType = property.GetManagedReferenceFieldType();
+        Type fieldType = property.GetManagedReferenceFieldType();
         return GetAppropriateTypesForAssigningToManagedReference(fieldType, filters);
     }
 
     /// Filters derived types of field typ parameter and finds ones whose are compatible with managed reference and filters.
     public static IEnumerable<Type> GetAppropriateTypesForAssigningToManagedReference(Type fieldType, List<Func<Type, bool>> filters = null)
     {
-        var appropriateTypes = new List<Type>();
+        List<Type> appropriateTypes = new List<Type>();
 
         // Get and filter all appropriate types
-        var derivedTypes = TypeCache.GetTypesDerivedFrom(fieldType);
+        TypeCache.TypeCollection derivedTypes = TypeCache.GetTypesDerivedFrom(fieldType);
-        foreach (var type in derivedTypes)
+        foreach (Type type in derivedTypes)
         {
             // Skips unity engine Objects (because they are not serialized by SerializeReference)
             if (type.IsSubclassOf(typeof(Object)))
+            {
                 continue;
+            }
             // Skip abstract classes because they should not be instantiated
             if (type.IsAbstract)
+            {
                 continue;
+            }
             // Skip generic classes because they can not be instantiated
             if (type.ContainsGenericParameters)
+            {
                 continue;
+            }
             // Skip types that has no public empty constructors (activator can not create them)    
             if (type.IsClass && type.GetConstructor(Type.EmptyTypes) == null) // Structs still can be created (strangely)
+            {
                 continue;
+            }
             // Filter types by provided filters if there is ones
             if (filters != null && filters.All(f => f == null || f.Invoke(type)) == false)
+            {
                 continue;
+            }
 
             appropriateTypes.Add(type);
         }
@@ -70,9 +79,11 @@ public static class ManagedReferenceUtility
     /// Gets real type of managed reference
     public static Type GetManagedReferenceFieldType(this SerializedProperty property)
     {
-        var realPropertyType = GetRealTypeFromTypename(property.managedReferenceFieldTypename);
+        Type realPropertyType = GetRealTypeFromTypename(property.managedReferenceFieldTypename);
         if (realPropertyType != null)
+        {
             return realPropertyType;
+        }
         
         Debug.LogError($"Can not get field type of managed reference : {property.managedReferenceFieldTypename}");
         return null;
@@ -81,8 +92,9 @@ public static class ManagedReferenceUtility
     /// Gets real type of managed reference's field typeName
     public static Type GetRealTypeFromTypename(string stringType)
     {
-        var names = GetSplitNamesFromTypename(stringType);
+        (string AssemblyName, string ClassName) = GetSplitNamesFromTypename(stringType);
-        var realType = Type.GetType($"{names.ClassName}, {names.AssemblyName}");
+        Type realType = Type.GetType($"{ClassName}, {AssemblyName}");
+
         return realType;
     }
     
@@ -90,11 +102,14 @@ public static class ManagedReferenceUtility
     public static (string AssemblyName, string ClassName) GetSplitNamesFromTypename(string typename)
     {
         if (string.IsNullOrEmpty(typename))
+        {
             return ("","");
+        }
+
+        string[] typeSplitString = typename.Split(char.Parse(" "));
+        string typeClassName = typeSplitString[1];
+        string typeAssemblyName = typeSplitString[0];
 
-        var typeSplitString = typename.Split(char.Parse(" "));
-        var typeClassName = typeSplitString[1];
-        var typeAssemblyName = typeSplitString[0];
         return (typeAssemblyName,  typeClassName);
     }
 }

Editor/Core/SerializeReferenceGenericSelectionMenu.cs

@@ -1,5 +1,4 @@
 #if UNITY_EDITOR
-
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -17,7 +16,7 @@ public static class SerializeReferenceGenericSelectionMenu
     /// And it will be performed on each Appropriate type found by TypeCache.
     public static void ShowContextMenuForManagedReference(this SerializedProperty property, Rect position, IEnumerable<Func<Type,bool>> filters = null)
     {
-        var context = new GenericMenu();
+        GenericMenu context = new GenericMenu();
         FillContextMenu(filters, context, property);
         context.DropDown(position);
     }
@@ -31,38 +30,40 @@ public static class SerializeReferenceGenericSelectionMenu
     /// 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();
+        GenericMenu 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
+        List<Func<Type, bool>> filters = enumerableFilters.ToList();// Prevents possible multiple enumerations
         
         // Adds "Make Null" menu command
         contextMenu.AddItem(new GUIContent("Null"), false, property.SetManagedReferenceToNull);
 
         // Collects appropriate types
-        var appropriateTypes = property.GetAppropriateTypesForAssigningToManagedReference(filters);
+        IEnumerable<Type> appropriateTypes = property.GetAppropriateTypesForAssigningToManagedReference(filters);
         
         // Adds appropriate types to menu
-        foreach (var appropriateType in appropriateTypes)
+        foreach (Type appropriateType in appropriateTypes)
+        {
             AddItemToContextMenu(appropriateType, contextMenu, property); 
         }
+    }
     
     private static void AddItemToContextMenu(Type type, GenericMenu genericMenuContext, SerializedProperty property)
     {
-        var assemblyName =  type.Assembly.ToString().Split('(', ',')[0];
+        string assemblyName =  type.Assembly.ToString().Split('(', ',')[0];
-        var entryName = type + "  ( " + assemblyName + " )";
+        string entryName = type + "  ( " + assemblyName + " )";
         genericMenuContext.AddItem(new GUIContent(entryName), false, AssignNewInstanceCommand, new GenericMenuParameterForAssignInstanceCommand(type, property));
     }
     
     private static void AssignNewInstanceCommand(object objectGenericMenuParameter )
     {
-        var parameter = (GenericMenuParameterForAssignInstanceCommand) objectGenericMenuParameter;
+        GenericMenuParameterForAssignInstanceCommand parameter = (GenericMenuParameterForAssignInstanceCommand) objectGenericMenuParameter;
-        var type = parameter.Type;
+        Type type = parameter.Type;
-        var property = parameter.Property;
+        SerializedProperty property = parameter.Property;
         property.AssignNewInstanceOfTypeToManagedReference(type);
     }
 
@@ -78,5 +79,4 @@ public static class SerializeReferenceGenericSelectionMenu
         public readonly Type Type;
     }
 } 
-
 #endif

Editor/DefaultUI/SerializeReferenceInspectorMiddleMouseMenu.cs

@@ -1,5 +1,4 @@
 #if UNITY_EDITOR
-
 using System;
 using System.Collections.Generic;
 using UnityEditor;
@@ -7,15 +6,15 @@ using UnityEngine;
 
 public static class SerializeReferenceInspectorMiddleMouseMenu
 {
-    public static void ShowContextMenuForManagedReferenceOnMouseMiddleButton(this SerializedProperty property,
+    public static void ShowContextMenuForManagedReferenceOnMouseMiddleButton(this SerializedProperty property, Rect position, IEnumerable<Func<Type, bool>> filters = null)
-        Rect position, IEnumerable<Func<Type, bool>> filters = null)
     {
-        var e = Event.current;
+        Event e = Event.current;
         if (e.type != EventType.MouseDown || !position.Contains(e.mousePosition) || e.button != 2)
+        {
             return;
+        }
         
         property.ShowContextMenuForManagedReference(filters);
     } 
 }
-
 #endif

Runtime/Attributes/SerializedReferenceUIDefaultTypeRestrictions.cs

@@ -6,10 +6,10 @@ public static class SerializedReferenceUIDefaultTypeRestrictions
 {
     public static IEnumerable<Func<Type, bool>> GetAllBuiltInTypeRestrictions(FieldInfo fieldInfo)
     {
-        var result = new List<Func<Type, bool>>();
+        List<Func<Type, bool>> result = new List<Func<Type, bool>>();
 
-        var attributeObjects = fieldInfo.GetCustomAttributes(false);
+        object[] attributeObjects = fieldInfo.GetCustomAttributes(false);
-        foreach (var attributeObject in attributeObjects)
+        foreach (object attributeObject in attributeObjects)
         {
             switch (attributeObject)
             { 

Runtime/Core/SerializeReferenceTypeRestrictionFilters.cs

@@ -3,11 +3,8 @@ using System.Linq;
 
 public static class SerializeReferenceTypeRestrictionFilters
 {
-    public static Func<Type, bool> TypeIsNotSubclassOrEqualOrHasInterface(Type[] types) => type =>
+    public static Func<Type, bool> TypeIsNotSubclassOrEqualOrHasInterface(Type[] types) => type => TypeIsSubclassOrEqualOrHasInterface(types).Invoke(type) == false;
-        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 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;