#![allow(clippy::float_cmp)] use serde_derive::{Deserialize, Serialize}; #[derive(Serialize, Deserialize, Debug)] #[serde(tag = "type", content = "data")] enum E { Float(f32), } #[test] fn test() { let e = E::Float(159.1); let v = serde_json::to_value(e).unwrap(); let e = serde_json::from_value::(v).unwrap(); match e { E::Float(f) => assert_eq!(f, 159.1), } }