//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
//     file="ExpOperatorPrecedence.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.Frozen;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace StgSharp.Script.Express
{
    public static partial class ExpCompile
    {

        private static FrozenDictionary<string, int> _operatorPrecedence;

        private static void InitPrecedence()
        {
            KeyValuePair<string, int>[] source = [
                new KeyValuePair<string, int>( "[]", 1 ),
                new KeyValuePair<string, int>( ".", 1 ),
                new KeyValuePair<string, int>( "\\", 1 ),
                new KeyValuePair<string, int>( "unary+", 2 ),
                new KeyValuePair<string, int>( "unary-", 2 ),
                new KeyValuePair<string, int>( "NOT", 2 ),
                new KeyValuePair<string, int>( "**", 3 ),
                new KeyValuePair<string, int>( "*", 4 ),
                new KeyValuePair<string, int>( "/", 4 ),
                new KeyValuePair<string, int>( "AND", 4 ),
                new KeyValuePair<string, int>( "MOD", 4 ),
                new KeyValuePair<string, int>( "DIV", 4 ),
                new KeyValuePair<string, int>( "||", 4 ),
                new KeyValuePair<string, int>( "+", 5 ),
                new KeyValuePair<string, int>( "-", 5 ),
                new KeyValuePair<string, int>( "OR", 5 ),
                new KeyValuePair<string, int>( "XOR", 5 ),
                new KeyValuePair<string, int>( "=", 6 ),
                new KeyValuePair<string, int>( "<>", 6 ),
                new KeyValuePair<string, int>( "<=", 6 ),
                new KeyValuePair<string, int>( ">=", 6 ),
                new KeyValuePair<string, int>( ">", 6 ),
                new KeyValuePair<string, int>( "<", 6 ),
                new KeyValuePair<string, int>( ":=:", 6 ),
                new KeyValuePair<string, int>( ":<>:", 6 ),
                new KeyValuePair<string, int>( "IN", 6 ),
                new KeyValuePair<string, int>( "LIKE", 6 ),
                ];
            _operatorPrecedence = new Dictionary<string, int>(
                source, _multiplexer ).ToFrozenDictionary();
        }

    }
}