[dotnet] [bidi] Use JsonSerializerContext to be AOT friendly

[nvborisenko]

User description

Description

Introduced BiDiSerializerContext for json serialization.

Motivation and Context

Contributes to #14480

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have read the contributing document.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

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PR Type

Enhancement, Tests

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Description

• Introduced BiDiSerializerContext for JSON serialization.

• Replaced JsonSerializerOptions with JsonSerializerContext across BiDi components.

• Added a new BiDiSerializerContext class with extensive type mappings.

• Updated transport interfaces and implementations to use JsonSerializerContext.

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Changes walkthrough 📝

Relevant files

Enhancement

Broker.cs Refactor Broker to use BiDiSerializerContext                          dotnet/src/webdriver/BiDi/Communication/Broker.cs Replaced JsonSerializerOptions with BiDiSerializerContext. Updated JSON serialization and deserialization calls. Adjusted constructor to initialize BiDiSerializerContext. +9/-6      BiDiSerializerContext.cs Introduce BiDiSerializerContext for JSON serialization      dotnet/src/webdriver/BiDi/Communication/Json/BiDiSerializerContext.cs Added new BiDiSerializerContext class. Defined extensive type mappings for JSON serialization. Utilized JsonSerializable attributes for type definitions. +118/-0  ITransport.cs Update ITransport interface for JsonSerializerContext        dotnet/src/webdriver/BiDi/Communication/Transport/ITransport.cs Updated ITransport interface to use JsonSerializerContext. Replaced JsonSerializerOptions in method signatures. +3/-3      WebSocketTransport.cs Refactor WebSocketTransport for JsonSerializerContext        dotnet/src/webdriver/BiDi/Communication/Transport/WebSocketTransport.cs Refactored WebSocketTransport to use JsonSerializerContext. Updated serialization and deserialization logic. +5/-4

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PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 3 🔵🔵🔵⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Error Handling The JsonSerializer error handling should be validated to ensure proper exception handling when deserialization fails, especially for the ReceiveMessagesAsync method which runs in a loop. var message = await _transport.ReceiveAsJsonAsync<Message>(_jsonSerializerContext, cancellationToken); Type Coverage Verify that all possible BiDi message types are covered in the JsonSerializable attributes list to avoid runtime serialization errors. [JsonSerializable(typeof(MessageSuccess))] [JsonSerializable(typeof(MessageError))] [JsonSerializable(typeof(MessageEvent))] [JsonSerializable(typeof(Modules.Script.EvaluateResult.Success))] [JsonSerializable(typeof(Modules.Script.EvaluateResult.Exception))] [JsonSerializable(typeof(Modules.Script.RemoteValue.Number), TypeInfoPropertyName = "Script_RemoteValue_Number")] [JsonSerializable(typeof(Modules.Script.RemoteValue.Boolean), TypeInfoPropertyName = "Script_RemoteValue_Boolean")] [JsonSerializable(typeof(Modules.Script.RemoteValue.String), TypeInfoPropertyName = "Script_RemoteValue_String")] [JsonSerializable(typeof(Modules.Script.RemoteValue.Null), TypeInfoPropertyName = "Script_RemoteValue_Null")] [JsonSerializable(typeof(Modules.Script.RemoteValue.Undefined), TypeInfoPropertyName = "Script_RemoteValue_Undefined")] [JsonSerializable(typeof(Modules.Script.RemoteValue.Symbol))] [JsonSerializable(typeof(Modules.Script.RemoteValue.Array), TypeInfoPropertyName = "Script_RemoteValue_Array")] [JsonSerializable(typeof(Modules.Script.RemoteValue.Object), TypeInfoPropertyName = "Script_RemoteValue_Object")] [JsonSerializable(typeof(Modules.Script.RemoteValue.Function))] [JsonSerializable(typeof(Modules.Script.RemoteValue.RegExp), TypeInfoPropertyName = "Script_RemoteValue_RegExp")] [JsonSerializable(typeof(Modules.Script.RemoteValue.RegExp.RegExpValue), TypeInfoPropertyName = "Script_RemoteValue_RegExp_RegExpValue")] [JsonSerializable(typeof(Modules.Script.RemoteValue.Date), TypeInfoPropertyName = "Script_RemoteValue_Date")] [JsonSerializable(typeof(Modules.Script.RemoteValue.Map), TypeInfoPropertyName = "Script_RemoteValue_Map")] [JsonSerializable(typeof(Modules.Script.RemoteValue.Set), TypeInfoPropertyName = "Script_RemoteValue_Set")] [JsonSerializable(typeof(Modules.Script.RemoteValue.WeakMap))] [JsonSerializable(typeof(Modules.Script.RemoteValue.WeakSet))] [JsonSerializable(typeof(Modules.Script.RemoteValue.Generator))] [JsonSerializable(typeof(Modules.Script.RemoteValue.Error))] [JsonSerializable(typeof(Modules.Script.RemoteValue.Proxy))] [JsonSerializable(typeof(Modules.Script.RemoteValue.Promise))] [JsonSerializable(typeof(Modules.Script.RemoteValue.TypedArray))] [JsonSerializable(typeof(Modules.Script.RemoteValue.ArrayBuffer))] [JsonSerializable(typeof(Modules.Script.RemoteValue.NodeList))] [JsonSerializable(typeof(Modules.Script.RemoteValue.HtmlCollection))] [JsonSerializable(typeof(Modules.Script.RemoteValue.Node))] [JsonSerializable(typeof(Modules.Script.RemoteValue.WindowProxy))] [JsonSerializable(typeof(Modules.Script.LocalValue.String), TypeInfoPropertyName = "Script_LocalValue_String")] [JsonSerializable(typeof(Modules.Script.Target.Realm), TypeInfoPropertyName = "Script_Target_Realm")] [JsonSerializable(typeof(Modules.Script.Target.Context), TypeInfoPropertyName = "Script_Target_Context")] [JsonSerializable(typeof(Modules.Script.RealmInfo.Window))] [JsonSerializable(typeof(Modules.Script.RealmInfo.DedicatedWorker))] [JsonSerializable(typeof(Modules.Script.RealmInfo.SharedWorker))] [JsonSerializable(typeof(Modules.Script.RealmInfo.ServiceWorker))] [JsonSerializable(typeof(Modules.Script.RealmInfo.Worker))] [JsonSerializable(typeof(Modules.Script.RealmInfo.PaintWorklet))] [JsonSerializable(typeof(Modules.Script.RealmInfo.AudioWorklet))] [JsonSerializable(typeof(Modules.Script.RealmInfo.Worklet))] [JsonSerializable(typeof(Modules.Log.Entry.Console))] [JsonSerializable(typeof(Modules.Log.Entry.Javascript))] // [JsonSerializable(typeof(Command))] [JsonSerializable(typeof(Message))] [JsonSerializable(typeof(Modules.Session.StatusResult))] [JsonSerializable(typeof(Modules.Session.NewResult))] [JsonSerializable(typeof(Modules.Browser.CloseCommand), TypeInfoPropertyName = "Browser_CloseCommand")] [JsonSerializable(typeof(Modules.Browser.GetUserContextsResult))] [JsonSerializable(typeof(IReadOnlyList<Modules.Browser.UserContextInfo>))] [JsonSerializable(typeof(Modules.BrowsingContext.CloseCommand), TypeInfoPropertyName = "BrowsingContext_CloseCommand")] [JsonSerializable(typeof(Modules.BrowsingContext.CreateResult))] [JsonSerializable(typeof(Modules.BrowsingContext.BrowsingContextInfo))] [JsonSerializable(typeof(Modules.BrowsingContext.NavigateResult))] [JsonSerializable(typeof(Modules.BrowsingContext.NavigationInfo))] [JsonSerializable(typeof(Modules.BrowsingContext.TraverseHistoryResult))] [JsonSerializable(typeof(Modules.BrowsingContext.LocateNodesResult))] [JsonSerializable(typeof(Modules.BrowsingContext.CaptureScreenshotResult))] [JsonSerializable(typeof(Modules.BrowsingContext.GetTreeResult))] [JsonSerializable(typeof(Modules.BrowsingContext.PrintResult))] [JsonSerializable(typeof(Modules.BrowsingContext.UserPromptOpenedEventArgs))] [JsonSerializable(typeof(Modules.BrowsingContext.UserPromptClosedEventArgs))] [JsonSerializable(typeof(Modules.BrowsingContext.Origin), TypeInfoPropertyName = "BrowsingContext_Origin")] [JsonSerializable(typeof(Modules.Network.BytesValue.String), TypeInfoPropertyName = "Network_BytesValue_String")] [JsonSerializable(typeof(Modules.Network.UrlPattern.String), TypeInfoPropertyName = "Network_UrlPattern_String")] [JsonSerializable(typeof(Modules.Network.ContinueWithAuthParameters.Default), TypeInfoPropertyName = "Network_ContinueWithAuthParameters_Default")] [JsonSerializable(typeof(Modules.Network.AddInterceptResult))] [JsonSerializable(typeof(Modules.Network.BeforeRequestSentEventArgs))] [JsonSerializable(typeof(Modules.Network.ResponseStartedEventArgs))] [JsonSerializable(typeof(Modules.Network.ResponseCompletedEventArgs))] [JsonSerializable(typeof(Modules.Network.FetchErrorEventArgs))] [JsonSerializable(typeof(Modules.Network.AuthRequiredEventArgs))] [JsonSerializable(typeof(Modules.Script.Channel), TypeInfoPropertyName = "Script_Channel")] [JsonSerializable(typeof(Modules.Script.AddPreloadScriptResult))] [JsonSerializable(typeof(Modules.Script.EvaluateResult))] [JsonSerializable(typeof(Modules.Script.GetRealmsResult))] [JsonSerializable(typeof(Modules.Script.MessageEventArgs))] [JsonSerializable(typeof(Modules.Script.RealmDestroyedEventArgs))] [JsonSerializable(typeof(IReadOnlyList<Modules.Script.RealmInfo>))] [JsonSerializable(typeof(Modules.Log.Entry))] [JsonSerializable(typeof(Modules.Storage.GetCookiesResult))] [JsonSerializable(typeof(Modules.Storage.DeleteCookiesResult))] [JsonSerializable(typeof(Modules.Storage.SetCookieResult))] [JsonSerializable(typeof(Modules.Input.PerformActionsCommand))] [JsonSerializable(typeof(Modules.Input.Pointer.Down), TypeInfoPropertyName = "Input_Pointer_Down")] [JsonSerializable(typeof(Modules.Input.Pointer.Up), TypeInfoPropertyName = "Input_Pointer_Up")] [JsonSerializable(typeof(Modules.Input.Pointer.Move), TypeInfoPropertyName = "Input_Pointer_Move")] [JsonSerializable(typeof(Modules.Input.Key.Down), TypeInfoPropertyName = "Input_Key_Down")] [JsonSerializable(typeof(Modules.Input.Key.Up), TypeInfoPropertyName = "Input_Key_Up")] [JsonSerializable(typeof(IEnumerable<Modules.Input.IPointerSourceAction>))] [JsonSerializable(typeof(IEnumerable<Modules.Input.IKeySourceAction>))] [JsonSerializable(typeof(IEnumerable<Modules.Input.INoneSourceAction>))] [JsonSerializable(typeof(IEnumerable<Modules.Input.IWheelSourceAction>))] internal partial class BiDiSerializerContext: JsonSerializerContext;

[qodo-merge-pro]

PR Code Suggestions ✨

Explore these optional code suggestions:

Category	Suggestion	Score
Possible issue	Add null check for safety Add null check for message before the switch statement to avoid potential NullReferenceException if message deserialization fails dotnet/src/webdriver/BiDi/Communication/Broker.cs [120-124] var message = await _transport.ReceiveAsJsonAsync<Message>(_jsonSerializerContext, cancellationToken); +if (message == null) +{ + continue; +} switch (message) { case MessageSuccess messageSuccess: Apply this suggestion Suggestion importance[1-10]: 7 Why: Adding a null check before the switch statement is a good defensive programming practice that prevents potential NullReferenceException if message deserialization fails, improving the code's robustness and error handling.	7
Learned best practice	Add proper null validation before casting deserialized JSON results to prevent potential null reference exceptions The ExecuteCommandAsync method performs an unsafe cast using the ! operator without proper null checking. Add null validation before casting the deserialized result to prevent potential NullReferenceException. dotnet/src/webdriver/BiDi/Communication/Broker.cs [183] -return (TResult)((JsonElement)result).Deserialize(typeof(TResult), _jsonSerializerContext)!; +var deserialized = ((JsonElement)result).Deserialize(typeof(TResult), _jsonSerializerContext); +if (deserialized == null) + throw new InvalidOperationException($"Failed to deserialize response to type {typeof(TResult).Name}"); +return (TResult)deserialized; Apply this suggestion	6

[RenderMichael]

Looks nice! I ran into the System.Runtime.CompilerServices.Unsafe issue earlier, happy to see a fix for it here.