using System;
using System.Collections.Generic;
using System.Text;

namespace Apewer
{

    /// <summary>无依赖特性。</summary>
    [AttributeUsage(AttributeTargets.All, AllowMultiple = false, Inherited = false)]
    public sealed class IndependentAttribute : Attribute
    {

        string _remark = null;

        /// <summary>无依赖特性。</summary>
        public IndependentAttribute(string remark = null) => _remark = remark;

        /// <summary>备注。</summary>
        public string Remark
        {
            get { return _remark; }
            set { if (!string.IsNullOrEmpty(value)) _remark = value; }
        }

        /// <summary>从 <see cref="IndependentAttribute"/> 到 Boolean 的隐式转换，判断 <see cref="IndependentAttribute"/> 有效。</summary>
        public static implicit operator bool(IndependentAttribute instance) => instance != null;

    }

}