feat: NativeAOT-compatible JSON serialization via source generation by Copilot · Pull Request #5 · NickvisionApps/Desktop

Copilot · 2026-03-18T14:40:29Z

Reflection-based System.Text.Json usage throughout the library prevents <PublishAot>true</PublishAot> publishing. This PR replaces all reflection-based serialization with source-generation-backed alternatives across all serialization sites.

Changes

`IJsonFileService` / `JsonFileService`

Replaced all methods with JsonTypeInfo<T>-based overloads for Load, LoadAsync, Save, SaveAsync — the only API is now AOT-safe, using new T() (where T : new()) instead of Activator.CreateInstance<T>()
Removed reflection-based JsonSerializerOptions static field and static constructor

Consumers provide their source-generated context's type info:

[JsonSerializable(typeof(Config))]
internal partial class AppJsonContext : JsonSerializerContext { }

// AOT-safe:
var config = jsonFileService.Load(AppJsonContext.Default.Config);
jsonFileService.Save(config, AppJsonContext.Default.Config);

`UpdaterService`

Added internal UpdaterServiceJsonContext (JsonSerializerContext with SnakeCaseLower naming) for List<GitHubRelease> and GitHubReleaseAsset
Replaced the Octokit→JSON→GitHubRelease round-trip with direct manual mapping, eliminating the need to source-generate external Octokit types
Replaced GetFromJsonAsync<T>(url, JsonSerializerOptions) with the JsonTypeInfo<T> overload
Removed the static JsonSerializerOptions field

`ObjectExtensions`

Added DeepCopy(JsonTypeInfo<T>) overload alongside the existing (now annotated) reflection-based one

JSON Converters

NullToZeroIntConverter, NullToFalseBoolConverter, NullToTrueBoolConverter, NullToEmptyStringConverter: replaced JsonSerializer.Deserialize/Serialize with Utf8JsonReader/Utf8JsonWriter primitives directly, eliminating IL2026/IL3050 AOT warnings
NullToDefaultValueConverter<T> and NullToDefaultObjectConverter<T>: replaced reflection-based JsonSerializer calls with options.GetTypeInfo(typeof(T)) → AOT-safe JsonTypeInfo<T> overloads; added where T : new() constraint on NullToDefaultObjectConverter<T>

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Co-authored-by: nlogozzo <17648453+nlogozzo@users.noreply.github.com>

…e path construction) Co-authored-by: nlogozzo <17648453+nlogozzo@users.noreply.github.com>

nlogozzo · 2026-03-20T02:39:39Z

@copilot I've updated the code - I want this library to always use source generated route instead of the non native-aot compatable apis. Please look at the changes and fix jsonfileservice tests. The tests should just use the sourcegen methods and the old cases should be removed. Rename the case00#

…unused JsonOptions Co-authored-by: nlogozzo <17648453+nlogozzo@users.noreply.github.com>

Copilot · 2026-03-20T02:42:49Z

@copilot I've updated the code - I want this library to always use source generated route instead of the non native-aot compatable apis. Please look at the changes and fix jsonfilese...

Done in 6a62246. Removed Cases 001–008 (reflection-based API) from JsonFileServiceTests, renamed the source-gen cases to Case001–Case008, and also removed the now-unused JsonOptions static field and static constructor from JsonFileService.cs.

nlogozzo · 2026-03-20T02:47:03Z

@copilot Seeing these warnings:

1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToZeroIntConverter.cs(15,16,15,68): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToZeroIntConverter.cs(15,16,15,68): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultValueConverter.cs(15,16,15,66): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultValueConverter.cs(15,16,15,66): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultValueConverter.cs(18,98,18,146): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultValueConverter.cs(18,98,18,146): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToZeroIntConverter.cs(18,100,18,148): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToZeroIntConverter.cs(18,100,18,148): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToTrueBoolConverter.cs(15,16,15,69): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToTrueBoolConverter.cs(15,16,15,69): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToTrueBoolConverter.cs(18,101,18,149): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToTrueBoolConverter.cs(18,101,18,149): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToFalseBoolConverter.cs(15,16,15,69): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToFalseBoolConverter.cs(15,16,15,69): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToFalseBoolConverter.cs(18,101,18,149): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToFalseBoolConverter.cs(18,101,18,149): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToEmptyStringConverter.cs(15,16,15,71): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToEmptyStringConverter.cs(15,16,15,71): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToEmptyStringConverter.cs(18,103,18,151): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToEmptyStringConverter.cs(18,103,18,151): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultObjectConverter.cs(15,16,15,66): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultObjectConverter.cs(15,16,15,66): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultObjectConverter.cs(18,98,18,146): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultObjectConverter.cs(18,98,18,146): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>  Nickvision.Desktop -> C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\bin\Debug\net9.0-windows10.0.19041.0\Nickvision.Desktop.dll
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultObjectConverter.cs(15,16,15,45): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultObjectConverter.cs(15,16,15,45): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToZeroIntConverter.cs(15,16,15,47): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToZeroIntConverter.cs(15,16,15,47): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultObjectConverter.cs(18,98,18,122): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultObjectConverter.cs(18,98,18,122): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToZeroIntConverter.cs(18,100,18,124): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToZeroIntConverter.cs(18,100,18,124): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToTrueBoolConverter.cs(15,16,15,48): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToTrueBoolConverter.cs(15,16,15,48): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToTrueBoolConverter.cs(18,101,18,125): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToTrueBoolConverter.cs(18,101,18,125): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToFalseBoolConverter.cs(15,16,15,48): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToFalseBoolConverter.cs(15,16,15,48): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToFalseBoolConverter.cs(18,101,18,125): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToFalseBoolConverter.cs(18,101,18,125): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToEmptyStringConverter.cs(15,16,15,50): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToEmptyStringConverter.cs(15,16,15,50): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToEmptyStringConverter.cs(18,103,18,127): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToEmptyStringConverter.cs(18,103,18,127): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultValueConverter.cs(15,16,15,45): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultValueConverter.cs(15,16,15,45): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultValueConverter.cs(18,98,18,122): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultValueConverter.cs(18,98,18,122): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>  Nickvision.Desktop -> C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\bin\Debug\net10.0-windows10.0.19041.0\Nickvision.Desktop.dll
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToZeroIntConverter.cs(15,16,15,68): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToZeroIntConverter.cs(15,16,15,68): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToZeroIntConverter.cs(18,100,18,148): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToZeroIntConverter.cs(18,100,18,148): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToTrueBoolConverter.cs(15,16,15,69): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToTrueBoolConverter.cs(15,16,15,69): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToTrueBoolConverter.cs(18,101,18,149): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToTrueBoolConverter.cs(18,101,18,149): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToFalseBoolConverter.cs(18,101,18,149): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToFalseBoolConverter.cs(18,101,18,149): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToFalseBoolConverter.cs(15,16,15,69): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToFalseBoolConverter.cs(15,16,15,69): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultValueConverter.cs(15,16,15,66): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultValueConverter.cs(15,16,15,66): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToEmptyStringConverter.cs(15,16,15,71): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToEmptyStringConverter.cs(15,16,15,71): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultValueConverter.cs(18,98,18,146): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultValueConverter.cs(18,98,18,146): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToEmptyStringConverter.cs(18,103,18,151): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToEmptyStringConverter.cs(18,103,18,151): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultObjectConverter.cs(15,16,15,66): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultObjectConverter.cs(15,16,15,66): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Deserialize<TValue>(ref Utf8JsonReader, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultObjectConverter.cs(18,98,18,146): warning IL2026: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.
1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToDefaultObjectConverter.cs(18,98,18,146): warning IL3050: Using member 'System.Text.Json.JsonSerializer.Serialize<TValue>(Utf8JsonWriter, TValue, JsonSerializerOptions)' which has 'RequiresDynamicCodeAttribute' can break functionality when AOT compiling. JSON serialization and deserialization might require types that cannot be statically analyzed and might need runtime code generation. Use System.Text.Json source generation for native AOT applications.

Please make AOT compatible.

Co-authored-by: nlogozzo <17648453+nlogozzo@users.noreply.github.com>

Copilot · 2026-03-20T02:50:07Z

@copilot Seeing these warnings:

1>C:\Users\nlogozzo\OneDrive\Documents\Programming\Desktop\Nickvision.Desktop\Converters\NullToZeroIntConverter.cs(15,16,15,68): warning IL2026:...

Fixed in fd543dd. All six converters now use AOT-safe primitives:

NullToZeroIntConverter, NullToFalseBoolConverter, NullToTrueBoolConverter, NullToEmptyStringConverter — replaced JsonSerializer.Deserialize/Serialize with the corresponding Utf8JsonReader/Utf8JsonWriter primitives (GetInt32, GetBoolean, GetString, WriteNumberValue, etc.)
NullToDefaultValueConverter<T> and NullToDefaultObjectConverter<T> — use options.GetTypeInfo(typeof(T)) to get the JsonTypeInfo<T> and pass it to the JsonTypeInfo<T> overloads of JsonSerializer.Deserialize/Serialize, which are the AOT-safe path

Initial plan

56bd206

Copilot AI assigned Copilot and nlogozzo Mar 18, 2026

Copilot started work on behalf of nlogozzo March 18, 2026 14:40 View session

Copilot AI and others added 2 commits March 18, 2026 15:07

feat: add NativeAOT-compatible JSON source-generation API

c34f950

Co-authored-by: nlogozzo <17648453+nlogozzo@users.noreply.github.com>

fix: address code review feedback (log level consistency and duplicat…

1038cc3

…e path construction) Co-authored-by: nlogozzo <17648453+nlogozzo@users.noreply.github.com>

Copilot AI changed the title ~~[WIP] Add NativeAOT compatibility for project~~ feat: NativeAOT-compatible JSON serialization via source generation Mar 18, 2026

Copilot AI requested a review from nlogozzo March 18, 2026 15:13

Copilot finished work on behalf of nlogozzo March 18, 2026 15:13

chore: Cleanup

99ef433

Copilot started work on behalf of nlogozzo March 20, 2026 02:39 View session

fix: update JsonFileService tests to use source-gen API only; remove …

6a62246

…unused JsonOptions Co-authored-by: nlogozzo <17648453+nlogozzo@users.noreply.github.com>

Copilot finished work on behalf of nlogozzo March 20, 2026 02:43

chore: Cleanup

fd99d23

Copilot started work on behalf of nlogozzo March 20, 2026 02:47 View session

fix: eliminate IL2026/IL3050 AOT warnings in all JSON converters

fd543dd

Co-authored-by: nlogozzo <17648453+nlogozzo@users.noreply.github.com>

Copilot finished work on behalf of nlogozzo March 20, 2026 02:50

chore: Cleanup

a8ca77f

nlogozzo approved these changes Mar 20, 2026

View reviewed changes

nlogozzo marked this pull request as ready for review March 20, 2026 03:01

nlogozzo merged commit a369875 into main Mar 20, 2026
11 checks passed

nlogozzo deleted the copilot/make-project-nativeaot-compatible branch March 20, 2026 03:01

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feat: NativeAOT-compatible JSON serialization via source generation#5

feat: NativeAOT-compatible JSON serialization via source generation#5
nlogozzo merged 8 commits into
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copilot/make-project-nativeaot-compatible

Copilot AI commented Mar 18, 2026 •

edited

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Copilot AI commented Mar 18, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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Changes

IJsonFileService / JsonFileService

UpdaterService

ObjectExtensions

JSON Converters

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nlogozzo commented Mar 20, 2026

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Copilot AI commented Mar 18, 2026 •

edited

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`IJsonFileService` / `JsonFileService`

`UpdaterService`

`ObjectExtensions`