Discriminated Unions

OneOfC#

F#-like discriminated unions for C# with exhaustive compile-time matching, providing a type-safe alternative to polymorphism and exceptions.

MPark.VariantC++

A C++17 std::variant implementation for C++11/14/17 compilers, providing type-safe unions.

FSharp.SystemTextJsonF#

A System.Text.Json serializer for F# types including records, discriminated unions, and collections with extensive customization.

FSharp.JsonF#

A reflection-based JSON serialization library for F# with built-in null safety and F# type support.

FsCodecF#

F# library for serializing events in event-sourcing systems with version-tolerant converters for System.Text.Json and Newtonsoft.Json.