1//! An example of implementing `serde::Serialize` and `serde::Deserialize`.
2//! The `#[serde(transparent)]` attribute is recommended to serialize directly
3//! to the underlying bits type without wrapping it in a `serde` newtype.
4
5#[cfg(feature = "serde")]
6fn main() {
7 use serde_derive::*;
8
9 bitflags::bitflags! {
10 #[derive(Serialize, Deserialize, Debug, PartialEq, Eq)]
11 #[serde(transparent)]
12 pub struct Flags: u32 {
13 const A = 1;
14 const B = 2;
15 const C = 4;
16 const D = 8;
17 }
18 }
19
20 let flags = Flags::A | Flags::B;
21
22 let serialized = serde_json::to_string(&flags).unwrap();
23
24 println!("{:?} -> {}", flags, serialized);
25
26 assert_eq!(serialized, r#""A | B""#);
27
28 let deserialized: Flags = serde_json::from_str(&serialized).unwrap();
29
30 println!("{} -> {:?}", serialized, flags);
31
32 assert_eq!(deserialized, flags);
33}
34
35#[cfg(not(feature = "serde"))]
36fn main() {}
37