Crate enum_variant_macros

This macro library is currently incomplete, it works for enums in a very specific format but it is has some rough spots.

To use the TryFromVariants macro, the type needs to provide a From<YourEnum> to &'static str for for this derivation to succeed. I recommend using strum_macros::IntoStaticStr.

Warning

Note that this only works for enums composed solely of 1 member unnamed variant.

Example

use enum_variant_macros::*;
use strum_macros::IntoStaticStr;

#[derive(PartialEq, Debug, IntoStaticStr, FromVariants, TryFromVariants)]
enum Wrap {
    Float(f32),
    Int(i32),
}
assert_eq!(Wrap::Int(4), Wrap::from(4_i32));
assert_eq!(Ok(4_i32), i32::try_from(Wrap::Int(4)));
assert!(f32::try_from(Wrap::Int(4)).is_err());

Structs

• VariantCastError
  Different variant than expected during TryFrom

Derive Macros

• FromVariants
  Generates From for each variant of enum.
• TryFromVariants
  Generates TryFrom for each variant of enum.