//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
//     file="ExpLogic.cs"
//     Project: StgSharp
//     AuthorGroup: Nitload Space
//     Copyright (c) Nitload Space. All rights reserved.
//     
//     Permission is hereby granted, free of charge, to any person 
//     obtaining a copy of this software and associated documentation 
//     files (the “Software”), to deal in the Software without restriction, 
//     including without limitation the rights to use, copy, modify, merge,
//     publish, distribute, sublicense, and/or sell copies of the Software, 
//     and to permit persons to whom the Software is furnished to do so, 
//     subject to the following conditions:
//     
//     The above copyright notice and 
//     this permission notice shall be included in all copies 
//     or substantial portions of the Software.
//     
//     THE SOFTWARE IS PROVIDED “AS IS”, 
//     WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
//     INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
//     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
//     IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
//     DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
//     ARISING FROM, OUT OF OR IN CONNECTION WITH 
//     THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//     
//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Text;

namespace StgSharp.Script.Express
{
    public enum ExpLogic
    {

        Unknown = 0,
        False = 1,
        True = 2,

    }

    public static class LogicConverter
    {
        public static bool? AsNullableBool(this ExpLogic l)
        {
            switch (l)
            {
                case ExpLogic.Unknown:
                    return null;
                case ExpLogic.False:
                    return false;
                case ExpLogic.True:
                    return true;
                default:
                    throw new ArgumentException();
            }
        }

        public static ExpLogic AsNullableInt(this bool? b) 
        {
            return b switch
            {
                null => ExpLogic.Unknown,
                true => ExpLogic.True,
                false => ExpLogic.False,
            };
        }
    }
}