[−][src]Macro serde_aux::enum_number_declare
This contains both serialization and ser/deserialization of a enum into and from numbers.
The reference implementation does not work if your
enum has negative values. This enum_number
handles this also.
Example
serde_aux::enum_number_declare!(TestEnum { Up = 1, None = 0, Down = -1, }); fn main() { let s = r#"1"#; let a: TestEnum = serde_json::from_str(s).unwrap(); assert_eq!(a, TestEnum::Up); let s = r#"0"#; let a: TestEnum = serde_json::from_str(s).unwrap(); assert_eq!(a, TestEnum::None); let s = r#"-1"#; let a: TestEnum = serde_json::from_str(s).unwrap(); assert_eq!(a, TestEnum::Down); let s = r#"5"#; assert!(serde_json::from_str::<TestEnum>(s).is_err()); }