namespace CanonSharp.Combinator;

/// <summary>
/// 单元类型Unit
/// </summary>
public readonly struct Unit : IComparable<Unit>, IEquatable<Unit>
{
    public static Unit Instance => default;

    public bool Equals(Unit other) => true;

    public int CompareTo(Unit other) => 0;

    public override bool Equals(object? obj) => obj is Unit;

    public override int GetHashCode() => 0;

    public override string ToString() => $"<{nameof(Unit)}>";

    public static bool operator ==(Unit _0, Unit _1) => true;

    public static bool operator !=(Unit _0, Unit _1) => false;
}