// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
using System;
using System.Composition;
using Microsoft.CodeAnalysis.Editor.Implementation.RenameTracking;
using Microsoft.CodeAnalysis.Host.Mef;
 
namespace Microsoft.CodeAnalysis.Editor.CSharp.RenameTracking
{
    [ExportLanguageService(typeof(IRenameTrackingLanguageHeuristicsService), LanguageNames.CSharp), Shared]
    internal sealed class CSharpRenameTrackingLanguageHeuristicsService : IRenameTrackingLanguageHeuristicsService
    {
        [ImportingConstructor]
        [Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
        public CSharpRenameTrackingLanguageHeuristicsService()
        {
        }
 
        public bool IsIdentifierValidForRenameTracking(string name)
            => name is not "var" and not "dynamic" and not "_";
    }
}