10 releases
0.1.9 | Dec 12, 2022 |
---|---|
0.1.8 | Dec 12, 2022 |
#46 in #enum
275 downloads per month
6KB
64 lines
Bytenum
Bytenum is a rust derive macro that creates a try_from<T>
implementation for an enum with only unit variants.
All types supported by #[repr(T)]
are supported by bytenum.
Usage
Add this to your Cargo.toml
:
bytenum = "0.1.9"
Example:
use bytenum::Bytenum;
#[derive(Bytenum, Debug, PartialEq, Copy, Clone)]
#[repr(u16)]
enum Color {
Red = 0x04,
Green = 0x15,
Blue = 0x34,
}
fn main() -> Result<(), Box<dyn std::error::Error + 'static>> {
assert_eq!(Color::Red, Color::try_from(0x04)?);
assert_eq!(Color::Green, Color::try_from(0x15)?);
assert_eq!(Color::Blue, Color::try_from(0x34)?);
Ok(())
}
Dependencies
~1.5MB
~36K SLoC