Use CachedEnum instead of EnumUtil

Assets/VRM10/Runtime/IO/Vrm10ImportData.cs

@@ -202,7 +202,7 @@ namespace UniVRM10
             }
             var accessor = Gltf.accessors[accessorIndex];
             var bytes = GetAccessorBytes(accessorIndex);
-            var vectorType = EnumUtil.Parse<AccessorVectorType>(accessor.type);
+            var vectorType = CachedEnum.Parse<AccessorVectorType>(accessor.type, ignoreCase: true);
             ba = new BufferAccessor(m_data.NativeArrayManager, bytes,
                 (AccessorValueType)accessor.componentType, vectorType, accessor.count);
             return true;
@@ -278,7 +278,7 @@ namespace UniVRM10
                 var bytes = bin.GetSubArray(start, totalCount * firstAccessor.GetStride());
                 return new BufferAccessor(m_data.NativeArrayManager, bytes,
                     (AccessorValueType)firstAccessor.componentType,
-                    EnumUtil.Parse<AccessorVectorType>(firstAccessor.type),
+                    CachedEnum.Parse<AccessorVectorType>(firstAccessor.type, ignoreCase: true),
                     totalCount);
             }
             else

Assets/VRM10/Runtime/IO/Vrm10Importer.cs

@@ -721,7 +721,7 @@ namespace UniVRM10
                 case VrmLib.HumanoidBones.rightThumbMetacarpal: return HumanBodyBones.RightThumbProximal;
                 case VrmLib.HumanoidBones.rightThumbProximal: return HumanBodyBones.RightThumbIntermediate;
             }
-            return VrmLib.EnumUtil.Cast<HumanBodyBones>(bone);
+            return CachedEnum.Parse<HumanBodyBones>(bone.ToString(), ignoreCase: true);
         }
 
         /// <summary>

Assets/VRM10/vrmlib/Runtime/EnumUtil.cs

@@ -1,59 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-
-namespace VrmLib
-{
-    public static class EnumUtil
-    {
-        public static T Parse<T>(string src, bool ignoreCase = true) where T : struct
-        {
-            if (string.IsNullOrEmpty(src))
-            {
-                return default(T);
-            }
-
-            return (T)Enum.Parse(typeof(T), src, ignoreCase);
-        }
-
-        public static T TryParseOrDefault<T>(string src, T defaultValue = default(T)) where T : struct
-        {
-            try
-            {
-                return (T)Enum.Parse(typeof(T), src, true);
-            }
-            catch (Exception)
-            {
-                return defaultValue;
-            }
-        }
-
-        public static T Cast<T>(object src, bool ignoreCase = true) where T : struct
-        {
-            if (src is null)
-            {
-                throw new ArgumentNullException();
-            }
-
-            return (T)Enum.Parse(typeof(T), src.ToString(), ignoreCase);
-        }
-
-        class GenericCache<T> where T : Enum
-        {
-            public static T[] Values = GetValues().ToArray();
-
-            static IEnumerable<T> GetValues()
-            {
-                foreach (var t in Enum.GetValues(typeof(T)))
-                {
-                    yield return (T)t;
-                }
-            }
-        }
-
-        public static T[] Values<T>() where T : Enum
-        {
-            return GenericCache<T>.Values;
-        }
-    }
-}

Assets/VRM10/vrmlib/Runtime/EnumUtil.cs.meta

@@ -1,11 +0,0 @@
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-guid: 035afec0107099641b5bc89b84a51733
-MonoImporter:
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-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
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