Crate option_set

A macro and a trait for implementing a bitset/flag type that serializes to and deserializes from a sequence of strings.

Usage

#[macro_use]
extern crate option_set;
#[macro_use]
extern crate bitflags;
extern crate serde;
extern crate serde_json;

option_set! {
    struct FooOptions: UpperCamel + u16 {
        const BAR_FIRST        = 0x0001;
        const QUX_SECOND_THING = 0x0080;
        const LOL_3RD          = 0x4000;
    }
}

fn main() {
    let opts_in = FooOptions::BAR_FIRST | FooOptions::LOL_3RD;
    let json = serde_json::to_string_pretty(&opts_in).unwrap();

    println!("{}", json);

    let opts_out: FooOptions = serde_json::from_str(&json).unwrap();

    println!("{:?}", opts_out);
    assert!(opts_out == opts_in);
}

Macros

option_set

Defines an option set type.

Enums

CaseTransform

Type that knows how to transform the case of individual option flag names.

Traits

OptionSet

Trait for bit flags that forwards to std traits for useful bit operators.

Functions

deserialize

Deserialize set bits from a sequence of name strings.

serialize

Serialize an OptionSet’s set bits as a sequence of strings.