Changelog

1.12.0-rc17

(fix): Generate snippets for unions when use-discriminated-unions is true in the generator configuration.

1.12.0-rc16

(fix): Remove hardcoded namespace import from JsonElementComparer.cs

1.12.0-rc15

(feat): Generate discriminated unions with:

• Type safety with compile-time checking
• Exhaustive discriminant value matching
• JSON serialization support

Here’s a simple example how to use a shape discriminated union:

var shape = new Shape(new Circle { Radius = 5 });
// Type checking
if (shape.IsCircle) {
    Console.WriteLine($"Radius: {circle.AsCircle().Radius}");
}
// Discriminant value matching
var area = shape.Match(
    circle => Math.PI * circle.Radius * circle.Radius,
    square => square.Length * square.Length,
    (type, _) => throw new NotSupportedException($"Unknown: {type}")
);
// TryAs pattern
if (shape.TryAsCircle(out var circle)) {
    Console.WriteLine($"Radius: {circle.Radius}");
}

This feature is off by default for backward compatibility. To enable it, set use-discriminated-unions to true in the generator configuration.

(feat): Improved serialization tests for generated classes for normal objects and discriminated unions.

(feat): Generated classes now follow the C# convention for odering consts, fields, constructors, properties, methods, operators, and inner classes.