#region License
/* 
 * Copyright (C) 1999-2022 John Källén.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING.  If not, write to
 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 */
#endregion

using Reko.Core.Expressions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Reko.Core.Operators
{
    public class UModOperator : BinaryOperator
    {
        internal UModOperator() : base(OperatorType.UMod) { }

        public override Constant ApplyConstants(Constant c1, Constant c2)
        {
            if (!ValidArgs(c1, c2))
                return InvalidConstant.Create(c2.DataType);
            if (c2.IsIntegerZero)
                return InvalidConstant.Create(c1.DataType);
            if (c1 is BigConstant bc1)
                return Constant.Create(c2.DataType, bc1.Value % c2.ToBigInteger());
            return BuildConstant(c1.DataType, c2.DataType, c1.ToUInt64() % c2.ToUInt64());
        }

        public override string AsCompound()
        {
            return " %= ";
        }

        public override string ToString()
        {
            return " %u ";
        }
    }
}
