Switch Roslyn protocol types to System.Text.Json serialization

eng/Directory.Packages.props

@@ -56,7 +56,7 @@
       Visual Studio
     -->
     <PackageVersion Include="Microsoft.VisualStudio.SDK" Version="17.10.234-preview.1" />
-    <PackageVersion Include="Microsoft.Internal.VisualStudio.Shell.Framework" Version="17.9.35796-preview.1" />
+    <PackageVersion Include="Microsoft.Internal.VisualStudio.Shell.Framework" Version="17.9.36524" />
     <PackageVersion Include="Microsoft.ServiceHub.Client" Version="4.2.1017" />
     <PackageVersion Include="Microsoft.VisualStudio.Extensibility" Version="$(MicrosoftVisualStudioExtensibilityVersion)" />
     <PackageVersion Include="Microsoft.VisualStudio.Extensibility.Sdk" Version="$(MicrosoftVisualStudioExtensibilityVersion)" />
@@ -99,7 +99,7 @@
     <PackageVersion Include="Microsoft.VisualStudio.Language" Version="$(MicrosoftVisualStudioCoreVersion)" />
     <PackageVersion Include="Microsoft.VisualStudio.Language.NavigateTo.Interfaces" Version="$(MicrosoftVisualStudioCoreVersion)" />
     <PackageVersion Include="Microsoft.VisualStudio.Language.StandardClassification" Version="$(MicrosoftVisualStudioCoreVersion)" />
-    <PackageVersion Include="Microsoft.VisualStudio.LanguageServer.Client" Version="17.10.11-preview" />
+    <PackageVersion Include="Microsoft.VisualStudio.LanguageServer.Client" Version="17.10.72-preview" />
     <PackageVersion Include="Microsoft.VisualStudio.RemoteControl" Version="16.3.52" />
     <PackageVersion Include="Microsoft.VisualStudio.RpcContracts" Version="17.10.3-preview" />
     <PackageVersion Include="Microsoft.VisualStudio.Shell.15.0" Version="17.10.234-preview.1" />
@@ -138,7 +138,7 @@
     <!--
       Language Server
     -->
-    <PackageVersion Include="Microsoft.VisualStudio.LanguageServer.Client.Implementation" Version="17.9.25-preview" />
+    <PackageVersion Include="Microsoft.VisualStudio.LanguageServer.Client.Implementation" Version="17.10.72-preview" />
     <PackageVersion Include="NuGet.ProjectModel" Version="6.8.0-rc.112" />
     <PackageVersion Include="Microsoft.TestPlatform.TranslationLayer" Version="$(MicrosoftTestPlatformVersion)" />
     <PackageVersion Include="Microsoft.TestPlatform.ObjectModel" Version="$(MicrosoftTestPlatformVersion)" />

src/EditorFeatures/Core/LanguageServer/AbstractInProcLanguageClient.cs

@@ -6,6 +6,7 @@
 using System.Collections.Generic;
 using System.Collections.Immutable;
 using System.IO;
+using System.Text.Json;
 using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.CodeAnalysis.Editor.Shared.Utilities;
@@ -19,8 +20,6 @@
 using Microsoft.VisualStudio.LanguageServer.Client;
 using Microsoft.VisualStudio.Threading;
 using Nerdbank.Streams;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
 using Roslyn.LanguageServer.Protocol;
 using StreamJsonRpc;
 
@@ -200,10 +199,9 @@ public Task OnServerInitializedAsync()
         ILspServiceLoggerFactory lspLoggerFactory,
         CancellationToken cancellationToken)
     {
-        var jsonMessageFormatter = new JsonMessageFormatter();
-        VSInternalExtensionUtilities.AddVSInternalExtensionConverters(jsonMessageFormatter.JsonSerializer);
+        var messageFormatter = RoslynLanguageServer.CreateJsonMessageFormatter();
 
-        var jsonRpc = new JsonRpc(new HeaderDelimitedMessageHandler(outputStream, inputStream, jsonMessageFormatter))
+        var jsonRpc = new JsonRpc(new HeaderDelimitedMessageHandler(outputStream, inputStream, messageFormatter))
         {
             ExceptionStrategy = ExceptionProcessing.ISerializable,
         };
@@ -215,7 +213,7 @@ public Task OnServerInitializedAsync()
         var hostServices = VisualStudioMefHostServices.Create(_exportProvider);
         var server = Create(
             jsonRpc,
-            jsonMessageFormatter.JsonSerializer,
+            messageFormatter.JsonSerializerOptions,
             languageClient,
             serverKind,
             logger,
@@ -227,7 +225,7 @@ public Task OnServerInitializedAsync()
 
     public virtual AbstractLanguageServer<RequestContext> Create(
         JsonRpc jsonRpc,
-        JsonSerializer jsonSerializer,
+        JsonSerializerOptions options,
         ICapabilitiesProvider capabilitiesProvider,
         WellKnownLspServerKinds serverKind,
         AbstractLspLogger logger,
@@ -236,7 +234,7 @@ public Task OnServerInitializedAsync()
         var server = new RoslynLanguageServer(
             LspServiceProvider,
             jsonRpc,
-            jsonSerializer,
+            options,
             capabilitiesProvider,
             logger,
             hostServices,

src/EditorFeatures/TestUtilities/LanguageServer/AbstractLanguageServerProtocolTests.InitializationOptions.cs

@@ -7,6 +7,7 @@
 using Microsoft.CodeAnalysis.Diagnostics;
 using Microsoft.CodeAnalysis.LanguageServer;
 using Microsoft.CodeAnalysis.Options;
+using StreamJsonRpc;
 using LSP = Roslyn.LanguageServer.Protocol;
 
 namespace Roslyn.Test.Utilities
@@ -22,10 +23,12 @@ public abstract partial class AbstractLanguageServerProtocolTests
             internal LSP.ClientCapabilities ClientCapabilities { get; init; } = new LSP.ClientCapabilities();
             internal WellKnownLspServerKinds ServerKind { get; init; } = WellKnownLspServerKinds.AlwaysActiveVSLspServer;
             internal Action<IGlobalOptionService>? OptionUpdater { get; init; } = null;
+            internal bool CallInitialize { get; init; } = true;
             internal bool CallInitialized { get; init; } = true;
             internal object? ClientTarget { get; init; } = null;
             internal string? Locale { get; init; } = null;
             internal IEnumerable<DiagnosticAnalyzer>? AdditionalAnalyzers { get; init; } = null;
+            internal IJsonRpcMessageFormatter? ClientMessageFormatter { get; init; } = null;
         }
     }
 }

src/EditorFeatures/TestUtilities/LanguageServer/AbstractLanguageServerProtocolTests.cs

@@ -7,6 +7,8 @@
 using System.Collections.Immutable;
 using System.IO;
 using System.Linq;
+using System.Text.Json;
+using System.Text.Json.Serialization.Metadata;
 using System.Text.RegularExpressions;
 using System.Threading;
 using System.Threading.Tasks;
@@ -26,13 +28,11 @@
 using Microsoft.CodeAnalysis.Options;
 using Microsoft.CodeAnalysis.Shared.Extensions;
 using Microsoft.CodeAnalysis.Shared.TestHooks;
-using Microsoft.CodeAnalysis.SolutionCrawler;
 using Microsoft.CodeAnalysis.Test.Utilities;
 using Microsoft.CodeAnalysis.Text;
 using Microsoft.CommonLanguageServerProtocol.Framework;
 using Nerdbank.Streams;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
+using Roslyn.LanguageServer.Protocol;
 using Roslyn.Utilities;
 using StreamJsonRpc;
 using Xunit;
@@ -44,6 +44,8 @@ namespace Roslyn.Test.Utilities
     [UseExportProvider]
     public abstract partial class AbstractLanguageServerProtocolTests
     {
+        private static readonly SystemTextJsonFormatter s_messageFormatter = RoslynLanguageServer.CreateJsonMessageFormatter();
+
         private protected readonly AbstractLspLogger TestOutputLspLogger;
         protected AbstractLanguageServerProtocolTests(ITestOutputHelper? testOutputHelper)
         {
@@ -124,8 +126,8 @@ private protected static LSP.ClientCapabilities GetCapabilities(bool isVS)
         /// <param name="actual">the actual object to be converted to JSON.</param>
         public static void AssertJsonEquals<T1, T2>(T1 expected, T2 actual)
         {
-            var expectedStr = JsonConvert.SerializeObject(expected);
-            var actualStr = JsonConvert.SerializeObject(actual);
+            var expectedStr = JsonSerializer.Serialize(expected, s_messageFormatter.JsonSerializerOptions);
+            var actualStr = JsonSerializer.Serialize(actual, s_messageFormatter.JsonSerializerOptions);
             AssertEqualIgnoringWhitespace(expectedStr, actualStr);
         }
 
@@ -269,7 +271,7 @@ private protected static LSP.MarkupContent CreateMarkupContent(LSP.MarkupKind ki
                 SortText = sortText,
                 InsertTextFormat = LSP.InsertTextFormat.Plaintext,
                 Kind = kind,
-                Data = JObject.FromObject(new CompletionResolveData(resultId, ProtocolConversions.DocumentToTextDocumentIdentifier(document))),
+                Data = JsonSerializer.SerializeToElement(new CompletionResolveData(resultId, ProtocolConversions.DocumentToTextDocumentIdentifier(document)), s_messageFormatter.JsonSerializerOptions),
                 Preselect = preselect,
                 VsResolveTextEditOnCommit = vsResolveTextEditOnCommit,
                 LabelDetails = labelDetails
@@ -512,13 +514,6 @@ private static LSP.DidCloseTextDocumentParams CreateDidCloseTextDocumentParams(U
                }
            };
 
-        internal static JsonMessageFormatter CreateJsonMessageFormatter()
-        {
-            var messageFormatter = new JsonMessageFormatter();
-            LSP.VSInternalExtensionUtilities.AddVSInternalExtensionConverters(messageFormatter.JsonSerializer);
-            return messageFormatter;
-        }
-
         internal sealed class TestLspServer : IAsyncDisposable
         {
             public readonly EditorTestWorkspace TestWorkspace;
@@ -536,7 +531,8 @@ internal sealed class TestLspServer : IAsyncDisposable
                 LSP.ClientCapabilities clientCapabilities,
                 RoslynLanguageServer target,
                 Stream clientStream,
-                object? clientTarget = null)
+                object? clientTarget = null,
+                IJsonRpcMessageFormatter? clientMessageFormatter = null)
             {
                 TestWorkspace = testWorkspace;
                 ClientCapabilities = clientCapabilities;
@@ -545,7 +541,9 @@ internal sealed class TestLspServer : IAsyncDisposable
 
                 LanguageServer = target;
 
-                _clientRpc = new JsonRpc(new HeaderDelimitedMessageHandler(clientStream, clientStream, CreateJsonMessageFormatter()), clientTarget)
+                clientMessageFormatter ??= RoslynLanguageServer.CreateJsonMessageFormatter();
+
+                _clientRpc = new JsonRpc(new HeaderDelimitedMessageHandler(clientStream, clientStream, clientMessageFormatter), clientTarget)
                 {
                     ExceptionStrategy = ExceptionProcessing.ISerializable,
                 };
@@ -571,13 +569,16 @@ internal static async Task<TestLspServer> CreateAsync(EditorTestWorkspace testWo
                 var (clientStream, serverStream) = FullDuplexStream.CreatePair();
                 var languageServer = CreateLanguageServer(serverStream, serverStream, testWorkspace, initializationOptions.ServerKind, logger);
 
-                var server = new TestLspServer(testWorkspace, locations, initializationOptions.ClientCapabilities, languageServer, clientStream, initializationOptions.ClientTarget);
+                var server = new TestLspServer(testWorkspace, locations, initializationOptions.ClientCapabilities, languageServer, clientStream, initializationOptions.ClientTarget, initializationOptions.ClientMessageFormatter);
 
-                await server.ExecuteRequestAsync<LSP.InitializeParams, LSP.InitializeResult>(LSP.Methods.InitializeName, new LSP.InitializeParams
+                if (initializationOptions.CallInitialize)
                 {
-                    Capabilities = initializationOptions.ClientCapabilities,
-                    Locale = initializationOptions.Locale,
-                }, CancellationToken.None);
+                    await server.ExecuteRequestAsync<LSP.InitializeParams, LSP.InitializeResult>(LSP.Methods.InitializeName, new LSP.InitializeParams
+                    {
+                        Capabilities = initializationOptions.ClientCapabilities,
+                        Locale = initializationOptions.Locale,
+                    }, CancellationToken.None);
+                }
 
                 if (initializationOptions.CallInitialized)
                 {
@@ -607,13 +608,13 @@ private static RoslynLanguageServer CreateLanguageServer(Stream inputStream, Str
                 var capabilitiesProvider = workspace.ExportProvider.GetExportedValue<ExperimentalCapabilitiesProvider>();
                 var factory = workspace.ExportProvider.GetExportedValue<ILanguageServerFactory>();
 
-                var jsonMessageFormatter = CreateJsonMessageFormatter();
+                var jsonMessageFormatter = RoslynLanguageServer.CreateJsonMessageFormatter();
                 var jsonRpc = new JsonRpc(new HeaderDelimitedMessageHandler(outputStream, inputStream, jsonMessageFormatter))
                 {
                     ExceptionStrategy = ExceptionProcessing.ISerializable,
                 };
 
-                var languageServer = (RoslynLanguageServer)factory.Create(jsonRpc, jsonMessageFormatter.JsonSerializer, capabilitiesProvider, serverKind, logger, workspace.Services.HostServices);
+                var languageServer = (RoslynLanguageServer)factory.Create(jsonRpc, jsonMessageFormatter.JsonSerializerOptions, capabilitiesProvider, serverKind, logger, workspace.Services.HostServices);
 
                 jsonRpc.StartListening();
                 return languageServer;

src/Features/LanguageServer/Microsoft.CodeAnalysis.LanguageServer.UnitTests/LspFileChangeWatcherTests.cs

@@ -3,12 +3,11 @@
 // See the LICENSE file in the project root for more information.
 
 using System.Collections.Concurrent;
+using System.Text.Json;
 using Microsoft.CodeAnalysis.LanguageServer.HostWorkspace.FileWatching;
 using Microsoft.CodeAnalysis.Shared.TestHooks;
 using Microsoft.CodeAnalysis.Test.Utilities;
 using Roslyn.LanguageServer.Protocol;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
 using StreamJsonRpc;
 using Xunit.Abstractions;
 using FileSystemWatcher = Roslyn.LanguageServer.Protocol.FileSystemWatcher;
@@ -115,8 +114,8 @@ private static async Task WaitForFileWatcherAsync(TestLspServer testLspServer)
 
     private static FileSystemWatcher GetSingleFileWatcher(DynamicCapabilitiesRpcTarget dynamicCapabilities)
     {
-        var registrationJson = Assert.IsType<JObject>(Assert.Single(dynamicCapabilities.Registrations).Value.RegisterOptions);
-        var registration = registrationJson.ToObject<DidChangeWatchedFilesRegistrationOptions>()!;
+        var registrationJson = Assert.IsType<JsonElement>(Assert.Single(dynamicCapabilities.Registrations).Value.RegisterOptions);
+        var registration = JsonSerializer.Deserialize<DidChangeWatchedFilesRegistrationOptions>(registrationJson, ProtocolConversions.LspJsonSerializerOptions)!;
 
         return Assert.Single(registration.Watchers);
     }

src/Features/LanguageServer/Microsoft.CodeAnalysis.LanguageServer.UnitTests/Utilities/AbstractLanguageServerHostTests.cs

@@ -52,7 +52,8 @@ private TestLspServer(ExportProvider exportProvider, ILogger logger)
             var (clientStream, serverStream) = FullDuplexStream.CreatePair();
             LanguageServerHost = new LanguageServerHost(serverStream, serverStream, exportProvider, logger);
 
-            _clientRpc = new JsonRpc(new HeaderDelimitedMessageHandler(clientStream, clientStream, new JsonMessageFormatter()))
+            var messageFormatter = LanguageServerHost.CreateJsonMessageFormatter();
+            _clientRpc = new JsonRpc(new HeaderDelimitedMessageHandler(clientStream, clientStream, messageFormatter))
             {
                 AllowModificationWhileListening = true,
                 ExceptionStrategy = ExceptionProcessing.ISerializable,

src/Features/LanguageServer/Microsoft.CodeAnalysis.LanguageServer/BrokeredServices/ServiceBrokerConnectHandler.cs

@@ -3,7 +3,7 @@
 // See the LICENSE file in the project root for more information.
 
 using System.Composition;
-using System.Runtime.Serialization;
+using System.Text.Json.Serialization;
 using Microsoft.CodeAnalysis.Host.Mef;
 using Microsoft.CodeAnalysis.LanguageServer.Handler;
 using Microsoft.CommonLanguageServerProtocol.Framework;
@@ -32,10 +32,9 @@ public ServiceBrokerConnectHandler(ServiceBrokerFactory serviceBrokerFactory)
         return _serviceBrokerFactory.CreateAndConnectAsync(request.PipeName);
     }
 
-    [DataContract]
     private class NotificationParams
     {
-        [DataMember(Name = "pipeName")]
+        [JsonPropertyName("pipeName")]
         public required string PipeName { get; set; }
     }
 }

src/Features/LanguageServer/Microsoft.CodeAnalysis.LanguageServer/HostWorkspace/FileWatching/LspContractTypes.cs

@@ -3,44 +3,40 @@
 // See the LICENSE file in the project root for more information.
 
 using System.Runtime.Serialization;
-using Newtonsoft.Json;
+using System.Text.Json.Serialization;
 
 namespace Roslyn.LanguageServer.Protocol;
 
-[DataContract]
 internal class DidChangeWatchedFilesRegistrationOptions
 {
-    [DataMember(Name = "watchers")]
+    [JsonPropertyName("watchers")]
     public required FileSystemWatcher[] Watchers { get; set; }
 }
 
-[DataContract]
 internal class FileSystemWatcher
 {
-    [DataMember(Name = "globPattern")]
+    [JsonPropertyName("globPattern")]
     public required RelativePattern GlobPattern { get; set; }
 
-    [DataMember(Name = "kind")]
+    [JsonPropertyName("kind")]
     public WatchKind? Kind { get; set; }
 }
 
-[DataContract]
 internal class RelativePattern
 {
-    [DataMember(Name = "baseUri")]
+    [JsonPropertyName("baseUri")]
     [JsonConverter(typeof(DocumentUriConverter))]
     public required Uri BaseUri { get; set; }
 
-    [DataMember(Name = "pattern")]
+    [JsonPropertyName("pattern")]
     public required string Pattern { get; set; }
 }
 
 // The LSP specification has a spelling error in the protocol, but Microsoft.VisualStudio.LanguageServer.Protocol
 // didn't carry that error along. This corrects that.
-[DataContract]
 internal class UnregistrationParamsWithMisspelling
 {
-    [DataMember(Name = "unregisterations")]
+    [JsonPropertyName("unregisterations")]
     public required Unregistration[] Unregistrations { get; set; }
 }
 

src/Features/LanguageServer/Microsoft.CodeAnalysis.LanguageServer/HostWorkspace/OpenProjectsHandler.cs

@@ -3,7 +3,7 @@
 // See the LICENSE file in the project root for more information.
 
 using System.Composition;
-using System.Runtime.Serialization;
+using System.Text.Json.Serialization;
 using Microsoft.CodeAnalysis.Host.Mef;
 using Microsoft.CodeAnalysis.LanguageServer.Handler;
 using Microsoft.CommonLanguageServerProtocol.Framework;
@@ -32,10 +32,9 @@ public OpenProjectHandler(LanguageServerProjectSystem projectSystem)
         return _projectSystem.OpenProjectsAsync(request.Projects.SelectAsArray(p => p.LocalPath));
     }
 
-    [DataContract]
     private class NotificationParams
     {
-        [DataMember(Name = "projects")]
+        [JsonPropertyName("projects")]
         public required Uri[] Projects { get; set; }
     }
 }

src/Features/LanguageServer/Microsoft.CodeAnalysis.LanguageServer/HostWorkspace/OpenSolutionHandler.cs

@@ -1,9 +1,9 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// 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.Composition;
-using System.Runtime.Serialization;
+using System.Text.Json.Serialization;
 using Microsoft.CodeAnalysis.Host.Mef;
 using Microsoft.CodeAnalysis.LanguageServer.Handler;
 using Microsoft.CommonLanguageServerProtocol.Framework;
@@ -31,10 +31,9 @@ public OpenSolutionHandler(LanguageServerProjectSystem projectSystem)
         return _projectSystem.OpenSolutionAsync(request.Solution.LocalPath);
     }
 
-    [DataContract]
     private class NotificationParams
     {
-        [DataMember(Name = "solution")]
+        [JsonPropertyName("solution")]
         public required Uri Solution { get; set; }
     }
-}
+}