Enum Extend

Provide Derive Macro for Plain Enum

Example

derive EnumStr can impl Some Traits about str and String

1. pub const as_str(&self) -> &'static str
2. AsRef<str>
3. ToString
4. From<&str>
5. From<&String>
6. From<String>

From<Str> Maybe Panic!!!

use enumex::EnumStr;

#[derive(EnumStr)]
enum Animal {
    Cat,
    Dog,
}