Initial commit

Library/PackageCache/com.unity.shadergraph@c8830f61858d/Editor/Data/Util/StackPool.cs

@@ -0,0 +1,21 @@
+using System.Collections.Generic;
+using UnityEngine.Pool;
+
+namespace UnityEditor.Graphing
+{
+    static class StackPool<T>
+    {
+        // Object pool to avoid allocations.
+        static readonly ObjectPool<Stack<T>> k_StackPool = new ObjectPool<Stack<T>>(() => new Stack<T>(), null, l => l.Clear());
+
+        public static Stack<T> Get()
+        {
+            return k_StackPool.Get();
+        }
+
+        public static void Release(Stack<T> toRelease)
+        {
+            k_StackPool.Release(toRelease);
+        }
+    }
+}