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); } } }