I took a stab at a reply to your question on Stack overflow:

https://stackoverflow.com/questions/78355748/nested-enum-with-protobuf


On Friday, April 19, 2024 at 5:10:25 PM UTC-7 Chedy Souffargi wrote:

> I am working on a Rust project, using Protocol Buffers, and dealing with 
> nested enums. Here's what I have so far in Rust:
>
> enum Vehicle { Car(CarType), Truck(TruckType), } enum CarType { Sedan, 
> Coupe, Hatchback, } enum TruckType { Pickup, Semi, } fn 
> create_vehicle_fleet() -> [Vehicle; 8] { [ Vehicle::Car(CarType::Sedan), 
> Vehicle::Truck(TruckType::Pickup), Vehicle::Car(CarType::Coupe), Vehicle::
> Truck(TruckType::Semi), Vehicle::Car(CarType::Hatchback), 
> Vehicle::Car(CarType::Sedan), 
> Vehicle::Truck(TruckType::Pickup), Vehicle::Car(CarType::Coupe), ] }
>
> I cannot find a proper way to represent the Vehicle enum in protobuf. Can 
> anyone suggest a solution or provide guidance on how to handle this 
> situation in Protocol Buffers?
>

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