// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

using System;
using System.Runtime.CompilerServices;

namespace CommunityToolkit.Mvvm.Messaging.Internals;

/// <summary>
/// An empty type representing a generic token with no specific value.
/// </summary>
internal readonly struct Unit : IEquatable<Unit>
{
    /// <inheritdoc/>
    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public bool Equals(Unit other)
    {
        return true;
    }

    /// <inheritdoc/>
    public override bool Equals(object? obj)
    {
        return obj is Unit;
    }

    /// <inheritdoc/>
    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public override int GetHashCode()
    {
        return 0;
    }
}