1 files changed, 59 insertions, 0 deletions
diff --git a/Assets/ThirdParty/VRM/VRM/UniJSON/Scripts/ListTreeNode/ListTreeNodeArrayExtensions.cs b/Assets/ThirdParty/VRM/VRM/UniJSON/Scripts/ListTreeNode/ListTreeNodeArrayExtensions.cs
new file mode 100644
index 00000000..7a68d2ac
--- /dev/null
+++ b/Assets/ThirdParty/VRM/VRM/UniJSON/Scripts/ListTreeNode/ListTreeNodeArrayExtensions.cs
@@ -0,0 +1,59 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+
+namespace UniJSON
+{
+    public static class ListTreeNodeArrayExtensions
+    {
+        public static IEnumerable<ListTreeNode<T>> ArrayItems<T>(this ListTreeNode<T> self) where T : IListTreeItem, IValue<T>
+        {
+            if (!self.IsArray()) throw new DeserializationException("is not array");
+            return self.Children;
+        }
+
+        [Obsolete("Use GetArrayItem(index)")]
+        public static ListTreeNode<T> GetArrrayItem<T>(this ListTreeNode<T> self, int index)
+            where T : IListTreeItem, IValue<T>
+        {
+            return GetArrayItem(self, index);
+        }
+
+        public static ListTreeNode<T> GetArrayItem<T>(this ListTreeNode<T> self, int index)
+            where T : IListTreeItem, IValue<T>
+        {
+            int i = 0;
+            foreach (var v in self.ArrayItems())
+            {
+                if (i++ == index)
+                {
+                    return v;
+                }
+            }
+            throw new KeyNotFoundException();
+        }
+
+        public static int GetArrayCount<T>(this ListTreeNode<T> self) 
+            where T : IListTreeItem, IValue<T>
+        {
+            if (!self.IsArray()) throw new DeserializationException("is not array");
+            return self.Children.Count();
+        }
+
+        public static int IndexOf<T>(this ListTreeNode<T> self, ListTreeNode<T> child) 
+            where T : IListTreeItem, IValue<T>
+        {
+            int i = 0;
+            foreach (var v in self.ArrayItems())
+            {
+                if (v.ValueIndex == child.ValueIndex)
+                {
+                    return i;
+                }
+                ++i;
+            }
+            throw new KeyNotFoundException();
+        }
+    }
+}