Trait EnumProperty

pub trait EnumProperty {
    // Required methods
    fn get_str(&self, prop: &str) -> Option<&'static str>;
    fn get_int(&self, _prop: &str) -> Option<i64>;
    fn get_bool(&self, _prop: &str) -> Option<bool>;
}

EnumProperty is a trait that makes it possible to store additional information with enum variants. This trait is designed to be used with the macro of the same name in the strum_macros crate. Currently, the string, integer and bool literals are supported in attributes.

Example

// You need to bring the type into scope to use it!!!
use strum::EnumProperty;

#[derive(PartialEq, Eq, Debug, EnumProperty)]
enum Class {
    #[strum(props(Teacher="Ms.Frizzle", Room="201", students=16, mandatory=true))]
    History,
    #[strum(props(Teacher="Mr.Smith"))]
    #[strum(props(Room="103", students=10))]
    Mathematics,
    #[strum(props(Time="2:30", mandatory=true))]
    Science,
}

let history = Class::History;
assert_eq!("Ms.Frizzle", history.get_str("Teacher").unwrap());
assert_eq!(16, history.get_int("students").unwrap());
assert!(history.get_bool("mandatory").unwrap());

Required Methods

fn get_str(&self, prop: &str) -> Option<&'static str>

fn get_int(&self, _prop: &str) -> Option<i64>

fn get_bool(&self, _prop: &str) -> Option<bool>

Implementors