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stgsharp/内核源代码/StgSharp.Script/Express/CompileEnv/ExpOperatorPrecedence.cs
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3.7 KiB
C#

//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
// 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();
}
}
}