karat enum untuk string
enum Foo {
Bar = 0x00,
Baz = 0x01,
Qux = 0x02,
// ...
Quux = 0xFF,
}
impl fmt::Display for Foo {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{:?}", self)
// or, alternatively:
// fmt::Debug::fmt(self, f)
}
}
let s: String = Foo::Quux.to_string();
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