namespace Python.Runtime
{
    using System.Diagnostics.Contracts;

    static class ReferenceExtensions
    {
        /// 
        /// Checks if the reference points to Python object None.
        /// 
        [Pure]
        public static bool IsNone(this in NewReference reference)
            => reference.DangerousGetAddress() == Runtime.PyNone;
        /// 
        /// Checks if the reference points to Python object None.
        /// 
        [Pure]
        public static bool IsNone(this BorrowedReference reference)
            => reference.DangerousGetAddress() == Runtime.PyNone;
    }
}