Lib.rs

提供方便与FFI一起使用的自动枚举实现

#[macro_use]
extern crate auto_enum;
extern crate checked_enum;

#[auto_enum(u32, checked)]
pub enum SweepDirection {
    CounterClockwise = 0,
    Clockwise = 1,
}

assert_eq!(SweepDirection::from_u32(0), Some(SweepDirection::CounterClockwise));

#[macro_use]
extern crate auto_enum;

#[enum_flags(u32)]
pub enum BitmapOptions {
    TARGET = 0x1,
    CANNOT_DRAW = 0x2,
    CPU_READ = 0x4,
    GDI_COMPATIBLE = 0x8,
}

let flags = BitmapOptions::TARGET | BitmapOptions::GDI_COMPATIBLE;
assert!(flags.is_set(BitmapOptions::TARGET));
assert!(!flags.is_set(BitmapOptions::CPU_READ));