VisualStudioNavigateToPreviewServiceFactory.cs

// 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;
using Microsoft.CodeAnalysis.Editor.Implementation.NavigateTo;
using Microsoft.CodeAnalysis.Host;
using Microsoft.CodeAnalysis.Host.Mef;

namespace Microsoft.VisualStudio.LanguageServices.Implementation.NavigateTo
{
    [ExportWorkspaceServiceFactory(typeof(INavigateToPreviewService), ServiceLayer.Host), Shared]
    internal sealed class VisualStudioNavigateToPreviewServiceFactory : IWorkspaceServiceFactory
    {
        private readonly Lazy<INavigateToPreviewService> _singleton =
            new(() => new VisualStudioNavigateToPreviewService());

        [ImportingConstructor]
        [Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
        public VisualStudioNavigateToPreviewServiceFactory()
        {
        }

        public IWorkspaceService CreateService(HostWorkspaceServices workspaceServices)
            => _singleton.Value;
    }
}