// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Diagnostics.CodeAnalysis;
 
namespace System.ComponentModel
{
    [AttributeUsage(AttributeTargets.All)]
    public sealed class ListBindableAttribute : Attribute
    {
        public static readonly ListBindableAttribute Yes = new ListBindableAttribute(true);
 
        public static readonly ListBindableAttribute No = new ListBindableAttribute(false);
 
        public static readonly ListBindableAttribute Default = Yes;
 
        private readonly bool _isDefault;
 
        public ListBindableAttribute(bool listBindable)
        {
            ListBindable = listBindable;
        }
 
        public ListBindableAttribute(BindableSupport flags)
        {
            ListBindable = (flags != BindableSupport.No);
            _isDefault = (flags == BindableSupport.Default);
        }
 
        public bool ListBindable { get; }
 
        public override bool Equals([NotNullWhen(true)] object? obj)
        {
            if (obj == this)
            {
                return true;
            }
 
            return obj is ListBindableAttribute other && other.ListBindable == ListBindable;
        }
 
        /// <summary>
        /// Returns the hashcode for this object.
        /// </summary>
        public override int GetHashCode() => base.GetHashCode();
 
        public override bool IsDefaultAttribute() => (Equals(Default) || _isDefault);
    }
}