5 releases
new 0.1.5 | Dec 11, 2024 |
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0.1.4 | Aug 29, 2024 |
0.1.2 | Jun 27, 2023 |
#309 in Procedural macros
209 downloads per month
6KB
83 lines
inttype-enum
Converts an enum
into an inttype
, and try to convert it back
Auto implement From<enum> for inttype
, and TryFrom<inttype> for enum
.
if one(only one) variant is tagged with #[default]
, then From<inttype> for enum
will be implemented
Usage examples:
[dependencies]
inttype-enum = "0.1"
#[derive(IntType)]
#[repr(u8)]
enum Cmd {
Connect = 1,
Bind = 2,
Udp = 3,
}
let conn: u8 = Cmd::Connect.into();
assert!(matches!(Cmd::try_from(conn), Ok(Cmd::Connect)));
assert!(matches!(Cmd::try_from(0), Err(_)));
#[derive(IntType)]
#[repr(u8)]
enum Method {
A = 1,
B = 2,
#[default]
C = 3,
}
assert!(matches!(1.into(), Method::A));
assert!(matches!(0.into(), Method::C));
Dependencies
~220–660KB
~16K SLoC