split runtime and editor

Runtime/Attributes/SerializeReferenceButtonAttribute.cs

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+using System;
+using UnityEngine;
+
+[AttributeUsage(AttributeTargets.Field)]
+public class SerializeReferenceButtonAttribute : PropertyAttribute
+{
+    
+}

Runtime/Attributes/SerializeReferenceButtonAttribute.cs.meta

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+guid: c64e0f68b41b48939c9b98cc29a19b20
+timeCreated: 1579584059

Runtime/Attributes/SerializeReferenceMenuAttribute.cs

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+using System;
+using UnityEngine;
+
+[AttributeUsage(AttributeTargets.Field)]
+public class SerializeReferenceMenuAttribute : PropertyAttribute
+{
+    
+}

Runtime/Attributes/SerializeReferenceMenuAttribute.cs.meta

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+guid: 4f1c372fa681cf146973df30a0d969fd
+timeCreated: 1579584059

Runtime/Attributes/SerializeReferenceUIRestrictionExcludeTypes.cs

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+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;
+} 

Runtime/Attributes/SerializeReferenceUIRestrictionExcludeTypes.cs.meta

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Runtime/Attributes/SerializeReferenceUIRestrictionIncludeTypes.cs

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+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;
+}

Runtime/Attributes/SerializeReferenceUIRestrictionIncludeTypes.cs.meta

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Runtime/Attributes/SerializedReferenceUIDefaultTypeRestrictions.cs

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+using System;
+using System.Collections.Generic;
+using System.Reflection;
+
+public static class SerializedReferenceUIDefaultTypeRestrictions
+{
+    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; 
+    }
+} 

Runtime/Attributes/SerializedReferenceUIDefaultTypeRestrictions.cs.meta

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