[−][src]Derive Macro enum_utils::TryFromRepr
#[derive(TryFromRepr)] { // Attributes available to this derive: #[enumeration] }
Derives TryFrom<Repr>
for an enum, where Repr
is a primitive representation specified
in #[repr(...)]
.
Examples
use std::convert::TryInto; #[derive(Debug, Clone, Copy, PartialEq, Eq, enum_utils::TryFromRepr)] #[repr(u8)] pub enum Direction { North = 1, East, South, West } use Direction::*; assert_eq!(North, 1u8.try_into().unwrap()); assert_eq!(West, 4u8.try_into().unwrap());