Resequencer Generator

[GenerateResequencer] creates a typed Resequencer<TPayload> factory.

[GenerateResequencer(typeof(ShipmentEvent), FactoryName = "Create", Name = "shipment-events")]
public static partial class ShipmentEvents
{
    [ResequencerSequence]
    private static long Select(Message<ShipmentEvent> message, MessageContext context)
        => message.Payload.Sequence;
}

The selector must be a static method returning long with Message<TPayload> and MessageContext parameters. Set StartsAt when the first expected sequence is not 1.

Diagnostics:

• PKRSEQ001: host type must be partial.
• PKRSEQ002: exactly one sequence selector is required.
• PKRSEQ003: sequence selector signature is invalid.