ListBindableAttribute.cs

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using System.Diagnostics.CodeAnalysis;
 
namespace System.ComponentModel;
 
[AttributeUsage(AttributeTargets.All)]
public sealed class ListBindableAttribute : Attribute
{
    public static readonly ListBindableAttribute Yes = new ListBindableAttribute(listBindable: true);
 
    public static readonly ListBindableAttribute No = new ListBindableAttribute(listBindable: false);
 
    public static readonly ListBindableAttribute Default = Yes;
 
    private readonly bool _isDefault;
 
    public bool ListBindable { get; }
 
    public ListBindableAttribute(bool listBindable)
    {
        ListBindable = listBindable;
    }
 
    public ListBindableAttribute(BindableSupport flags)
    {
        ListBindable = flags != BindableSupport.No;
        _isDefault = flags == BindableSupport.Default;
    }
 
    public override bool Equals([NotNullWhen(true)] object? obj)
    {
        if (obj == this)
        {
            return true;
        }
        if (obj is ListBindableAttribute listBindableAttribute)
        {
            return listBindableAttribute.ListBindable == ListBindable;
        }
        return false;
    }
 
    public override int GetHashCode()
    {
        return base.GetHashCode();
    }
 
    public override bool IsDefaultAttribute()
    {
        if (!Equals(Default))
        {
            return _isDefault;
        }
        return true;
    }
}