https://github.com/coolreader18/e_num

Serialize enums into numbers.
https://github.com/coolreader18/e_num

enum rust serialization

Last synced: 5 months ago
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Serialize enums into numbers.

• Host: GitHub
• URL: https://github.com/coolreader18/e_num
• Owner: coolreader18
• License: mit
• Created: 2018-11-21T23:36:10.000Z (about 7 years ago)
• Default Branch: master
• Last Pushed: 2018-11-24T07:09:08.000Z (about 7 years ago)
• Last Synced: 2025-08-27T15:16:13.620Z (5 months ago)
• Topics: enum, rust, serialization
• Language: Rust
• Homepage:
• Size: 15.6 KB
• Stars: 2
• Watchers: 0
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# e_num

> Serialize enums into numbers.

## Warning

This library works with variant fields (e.g. `Variant1(u64)`) by bitshifting the

number representation of the contained value over enough so that the tagging can

fit on the right of the number. If you're dealing with very large numbers in the

fields or have a ton of variants, data on the left side of the value will likely

be lost.

## Usage

```rust

#[macro_use]

extern crate e_num;

use e_num::ENum;

#[derive(ENum)]

enum A {

  B,

  C(u64),

}

fn main() {

  let b: usize = A::B.to_num();

  println!("b as a number: {:#b}", b);

  let b = A::from_num(b);

  assert!(match b {

    A::B => true,

    _ => false,

  });

  let c = A::C(85).to_num();

  println!("c as a number: {:#b}", c);

  let c = A::from_num(c);

  assert!(match c {

    A::C(inner) => {

      assert_eq!(inner, 85);

      true

    }

    _ => false,

  });

}

```

## License

This project is licensed under the MIT license. See the [LICENSE](LICENSE) file

for more details.