File: Client\Razor\CSharpLspRazorProjectFactory.cs
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Project: src\src\VisualStudio\LiveShare\Impl\Microsoft.VisualStudio.LanguageServices.LiveShare.csproj (Microsoft.VisualStudio.LanguageServices.LiveShare)
// 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.Collections.Generic;
using System.ComponentModel.Composition;
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.Host.Mef;
 
namespace Microsoft.VisualStudio.LanguageServices.LiveShare.Client.Razor
{
    [Export]
    internal class CSharpLspRazorProjectFactory
    {
        private readonly RemoteLanguageServiceWorkspaceHost _remoteLanguageServiceWorkspaceHost;
        private readonly Dictionary<string, ProjectId> _projects = [];
 
        public ProjectId GetProject(string projectName)
        {
            if (_projects.TryGetValue(projectName, out var projectId))
            {
                return projectId;
            }
 
            var projectInfo = ProjectInfo.Create(ProjectId.CreateNewId(projectName), VersionStamp.Default, projectName, projectName, LanguageNames.CSharp);
 
            _remoteLanguageServiceWorkspaceHost.Workspace.OnProjectAdded(projectInfo);
 
            _projects.Add(projectName, projectInfo.Id);
 
            return projectInfo.Id;
        }
 
        public CodeAnalysis.Workspace Workspace => _remoteLanguageServiceWorkspaceHost.Workspace;
 
        [ImportingConstructor]
        [Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
        public CSharpLspRazorProjectFactory(RemoteLanguageServiceWorkspaceHost remoteLanguageServiceWorkspaceHost)
            => _remoteLanguageServiceWorkspaceHost = remoteLanguageServiceWorkspaceHost ?? throw new ArgumentNullException(nameof(remoteLanguageServiceWorkspaceHost));
    }
}