Compatibility with built_value for serialization

[realcr]

Hi, thank you for your work on sum_types!
Is there a way to use sum_types together with built_value for serialization?

I am trying to create an interop between a Rust binary and a Flutter application, and sum_types looks very promising to allow representing something similar to Rust's enums. I am exploring possible serialization libs, and I found json_serializable and built_value. Checking the examples in this repository, I could find an example using json_serializable, but didn't find anywhere an example using built_value.

I prefer using built_value because it seems like it is more strict. That said, I am a beginner with dart, I was wondering what is your take on this. Thank you!

[werediver]

Hi @realcr! The fact that you're asking this question suggests that built_value cannot be applied in a way similar to how json_serializable can be. That sounds surprising, but I'd need to try it to answer, because I haven't used built_value.

If I find time this week, I'll take a look into it. Please post a message if you find a solution earlier!

[realcr]

Hey, I tried to solve this for the last two weeks. Check out:

• Union Types google/built_value.dart#395 (comment)
• https://github.com/freedomlayer/built_union.dart

[lelabo-m]

I would also be interested to know if it works with build_value.
In the mean time, I am checking @realcr solution.