You can use the strum crate to easily iterate through the values of an enum.
use strum::IntoEnumIterator; // 0.17.1
use strum_macros::EnumIter; // 0.17.1
#[derive(Debug, EnumIter)]
enum Direction {
NORTH,
SOUTH,
EAST,
WEST,
}
fn main() {
for direction in Direction::iter() {
println!("{:?}", direction);
}
}
Output:
NORTH
SOUTH
EAST
WEST