Rust enum #[property]

[WinstonHartnett]

Am I wrong that for rust enums to be exported to the Inspector as enumerated strings, each Node has to add a property (w/ PropertyBuilder), a getter that returns a string representation of the enum variant, a setter that takes a string representation and converts it into an enum variant, and a StringHint::Enum(EnumHint::...? This seems rather verbose.

Can this instead be automated with #[property(...)]?

[ghost]

Adding an option to derive ToVariant and FromVariant using strings as discriminants would be possible. Generating the hints, however, is not. This is due to the fact that Rust attribute macros are macros, not run-time reflection. Macros can only operate on their input. It's not possible for the derive macro to know the variant names in another type defined elsewhere.

Writing a derive macro that generates static VARIANT_NAMES: &[&str] items for plain enums should be fairly straightforward, but I'm afraid that's outside the scope of godot-rust. You might want to search crates to see if it already exists.

[WinstonHartnett]

The strum crate has enum helpers which includes an assoc. static VARIANTS: &[&str]. I wrote a simple derive macro for ToVariant and FromVariant but ExportInfo's fields are private, so how would I go about setting hint_string?

[ghost]

Use StringHint::export_info.

[WinstonHartnett]

Ah, thanks!