Trait strum::EnumMessage
source · [−]pub trait EnumMessage {
fn get_message(&self) -> Option<&'static str>;
fn get_detailed_message(&self) -> Option<&'static str>;
fn get_serializations(&self) -> &'static [&'static str];
}
Expand description
Associates additional pieces of information with an Enum. This can be
autoimplemented by deriving EnumMessage
and annotating your variants with
`#[strum(message=“…”)].
Example
// You need to bring the type into scope to use it!!!
use strum::EnumMessage;
#[derive(PartialEq, Eq, Debug, EnumMessage)]
enum Pet {
#[strum(message="I have a dog")]
#[strum(detailed_message="My dog's name is Spots")]
Dog,
#[strum(message="I don't have a cat")]
Cat,
}
let my_pet = Pet::Dog;
assert_eq!("I have a dog", my_pet.get_message().unwrap());