using System.Collections.Generic; using System.Runtime.CompilerServices; namespace StardewModdingAPI.Framework.StateTracking.Comparers { /// <summary>A comparer which considers two references equal if they point to the same instance.</summary> /// <typeparam name="T">The value type.</typeparam> internal class ObjectReferenceComparer<T> : IEqualityComparer<T> { /********* ** Public methods *********/ /// <summary>Determines whether the specified objects are equal.</summary> /// <returns>true if the specified objects are equal; otherwise, false.</returns> /// <param name="x">The first object to compare.</param> /// <param name="y">The second object to compare.</param> public bool Equals(T? x, T? y) { return object.ReferenceEquals(x, y); } /// <summary>Get a hash code for the specified object.</summary> /// <param name="obj">The value.</param> public int GetHashCode(T obj) { return RuntimeHelpers.GetHashCode(obj); } } }