// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
// AbstractRazorSemanticTokensLegendService.GetStaticFieldValues reflects over
// SemanticTokenModifiers' static fields, so they must remain fields instead of consts.
#pragma warning disable CA1802
 
using System;
using System.Collections.Generic;
 
namespace Microsoft.CodeAnalysis.Razor.SemanticTokens;
 
internal sealed class SemanticTokenModifiers
{
    private static readonly string s_razorCode = "razorCode";
 
    public int RazorCodeModifier => _modifierMap[s_razorCode];
 
    public string[] All { get; }
 
    private readonly Dictionary<string, int> _modifierMap;
 
    public SemanticTokenModifiers(string[] tokenModifiers)
    {
        var modifierMap = new Dictionary<string, int>();
        foreach (var modifier in tokenModifiers)
        {
            // Modifiers is a flags enum, so numeric values are powers of 2, and we skip 0
            modifierMap.Add(modifier, (int)Math.Pow(2, modifierMap.Count));
        }
 
        _modifierMap = modifierMap;
 
        All = tokenModifiers;
    }
}