Attribute Macro bitflag 

#[bitflag]

Attribute proc macro that turns a struct into a bitflag The underlying type of the bitflag is chosen based on the number of fields in the struct usage:

use binf::bitflag;

#[bitflag]
pub struct MyBitflag {
    a: bool,
    b: bool,
    c: bool,
}

fn main() {
    let mut flag = MyBitflag::new(0);
    flag.set_a(true);
    let a = flag.a();
}

You should also be able to add derive macros on the struct because the macro copies all attributes to the new struct so you should be able to derive Serialize for example its just that in serialized data you will see the underlying type (unsigned number) you can also call functions from BitFlag trait beacause the new struct implements deref and deref_mut to the underlying type