Macro eset::derive_eset

macro_rules! derive_eset {
    ($expr: ty) => { ... };
}

An opt-in derive that adds Into<ESet<T>> for T and operator BitOr<T, Output=ESet<T>>.

This supports T as the right hand side for ESet operations like | or &=.

You can use methods like insert or with instead of this macro.

Examples

 enum A {
    Foo,
    Bar,
 }

 derive_eset!(A);
 assert_eq!(A::Foo | A::Bar, ESet::new_flags([A::Foo, A::Bar]));