FieldToken.cs

using System.Runtime.InteropServices;

namespace System.Reflection.Emit
{
    [Serializable]
    [ComVisible(true)]
    public struct FieldToken
    {
        public static readonly FieldToken Empty;

        internal int m_fieldTok;

        internal object m_class;

        public int Token => m_fieldTok;

        internal FieldToken(int field, Type fieldClass)
        {
            m_fieldTok = field;
            m_class = fieldClass;
        }

        public override int GetHashCode()
        {
            return m_fieldTok;
        }

        public override bool Equals(object obj)
        {
            if (obj is FieldToken)
            {
                return Equals((FieldToken)obj);
            }
            return false;
        }

        public bool Equals(FieldToken obj)
        {
            if (obj.m_fieldTok == m_fieldTok)
            {
                return obj.m_class == m_class;
            }
            return false;
        }

        public static bool operator ==(FieldToken a, FieldToken b)
        {
            return a.Equals(b);
        }

        public static bool operator !=(FieldToken a, FieldToken b)
        {
            return !(a == b);
        }
    }
}